113 results on '"Leão JC"'
Search Results
2. Quality assessment of systematic reviews regarding the effectiveness of zygomatic implants: an overview of systematic reviews
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Sales, PH., primary, Gomes, MV., additional, Oliveira-Neto, OB., additional, de Lima, FJ., additional, and Leão, JC, additional
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- 2020
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3. IL17A polymorphism and elevated IL17A serum levels are associated with oral lichen planus
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Gueiros, LA, primary, Arão, T, additional, Souza, T, additional, Vieira, CL, additional, Gomez, RS, additional, Almeida, OP, additional, Lodi, G, additional, and Leão, JC, additional
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- 2017
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4. Zika virus: oral healthcare implications
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Leão, JC, primary, Gueiros, LA, additional, Lodi, G, additional, Robinson, NA, additional, and Scully, C, additional
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- 2016
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5. Zika virus: oral healthcare implications.
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Leão, JC, Gueiros, LA, Lodi, G, Robinson, NA, and Scully, C
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ARBOVIRUS diseases , *ORAL hygiene , *PATHOLOGICAL laboratories , *GUILLAIN-Barre syndrome , *WORLD health , *FLAVIVIRAL diseases , *INFECTIOUS disease transmission , *THERAPEUTICS - Abstract
Zika virus ( ZIKV) infection has been recognised since 1947, but just recently it became a worldwide major public health problem. The most common features of ZIKV infection are fever, cutaneous rash, arthralgia and conjunctivitis but most affected patients with the clinical disease present with only mild symptoms. However, severe neurological complications have been described: there is an occasional association with Guillain-Barre syndrome, and emerging data indicate an association between vertical transmission of ZIKV infection and microcephaly, but no specific orofacial manifestations have yet been reported. ZIKV is present in body fluids and has also been demonstrated in the saliva, but there is as yet no reliable evidence to support ZIKV transmission via this pathway. Transmission in oral health care should be effectively prevented using standard infection control measures. There are currently no specific treatments for Zika virus disease and no vaccines available, so prevention of ZIKV is based on vector control. [ABSTRACT FROM AUTHOR]
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- 2017
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6. Cowden's syndrome affecting the mouth, gastrointestinal, and central nervous system: a case report and review of the literature.
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Leão JC, Batista V, Guimarães PB, Belo J, and Porter SR
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Cowden's syndrome (CS) is a rare genodermatosis, of autosomal dominant inheritance and variable phenotype, principally characterized by the formation of hamartomas in various organs, including skin, thyroid, breast, brain, and gastrointestinal tract and by the increased risk for the development of malignancy. The present report details the features of a very rare presentation of Cowden's syndrome affecting not only the mouth and gastrointestinal mucosa but also the central nervous system. [ABSTRACT FROM AUTHOR]
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- 2005
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7. Incidence of oral manifestations in hematological malignancy patients undergoing chemotherapy: prospective cohort study.
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Mello EL, Pena NG, Souza VA, Silva CM, Ribeiro LN, Albuquerque RF, Meleti M, Vescovi P, Leão JC, and Silva IH
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- Humans, Male, Female, Prospective Studies, Adult, Middle Aged, Aged, Incidence, Young Adult, Cohort Studies, Stomatitis epidemiology, Stomatitis chemically induced, Stomatitis etiology, Hematologic Neoplasms, Antineoplastic Agents adverse effects, Mouth Diseases chemically induced, Mouth Diseases epidemiology, Mouth Diseases etiology
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Background: Oral manifestations are frequent in patients with hematological malignancies undergoing chemotherapy and may be directly or indirectly related to drug toxicity. Few studies have assessed the chemotherapy and oral manifestations that patients might develop. Therefore, this study aimed to evaluate the incidence of oral manifestations in patients with hematologic neoplasms during hospitalization and chemotherapy., Material and Methods: A Prospective Cohort Study, in which adult patients diagnosed with hematological malignancies undergoing chemotherapy were followed up daily to observe the possible development of oral manifestations. Sociodemographic and oncological data as well as oral manifestations when presented were collected. All the patients underwent photobiomodulation to prevent mucositis. STATA/SE 12.0, and Excel 365 software were used to assess the collected data. Fisher's exact test was used to assess categorical variables., Results: 95 patients were included in this study. Sixty four (67,4%) of the patients were male, 31 female (32,6%) and the mean age was 44 years of age (SD 15,1) ranging from 19 to 79. Non-Hodgkin's lymphoma is the most common neoplasm. Cytarabine was the most commonly administered drug used in 72 patients (75,8%). Fungal infections were the most frequent oral manifestations. There was no correlation between the histological diagnosis and the risk of developing oral mucositis., Conclusions: Oral manifestations are frequent in patients with hematological malignancies who are undergoing chemotherapy. Since there is a tendency for increasing cases of hematologic neoplasms annually, it is of paramount importance to know the treatments offered to these patients and the related side effects in order to prevent them and consequently decrease morbimortality.
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- 2025
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8. Effectiveness of trans-sinus dental implants in the complete arch rehabilitation of the edentulous maxilla: A systematic review and meta-analysis.
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Sales PHDH, Diniz DA, Silva PGB, Carvalho AAT, Vescovi P, Meleti M, and Leão JC
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Statement of Problem: Systematic reviews to determine the effectiveness of oral rehabilitation with trans-sinus dental implants in patients with an atrophic maxilla are lacking., Purpose: The purpose of this systematic review was to determine the effectiveness of trans-sinus dental implants installed in patients with an atrophic maxilla., Material and Methods: Searches were conducted in 5 databases including the nonpeer-reviewed literature up to March 2024 by 2 independent reviewers according to established inclusion and exclusion criteria and according to the question: Can trans-sinus implants be a suitable option for the rehabilitation of the atrophic maxilla? The meta-analysis was carried out using the Revman software program for the variables implant loss and marginal bone loss using a 95% confidence interval. The risk of bias in the studies was determined using the ROBINS I tool., Results: A total of 1884 articles were initially found in the researched databases, of which 4 were included in this systematic review. Three were observational studies, and 1 a randomized clinical trial. A total of 144 participants with 658 implants were evaluated (207 trans-sinus) with a 97.2% effectiveness. No statistically significant difference was found in effectiveness when comparing trans-sinus implants and conventional implants (P=.14, I2: 0%), and also no statistically significant difference was found in relation to marginal bone loss between the groups (P=.47, I2: 91%). None of the studies analyzed presented a low risk of bias., Conclusions: The use of trans-sinus implants in the rehabilitation of atrophic edentulous jaws represents a suitable option with a high success rate. However, the small number of controlled studies on the subject and the high risk of bias are important factors that must be considered before choosing this therapy. New controlled studies with high methodological rigor must be carried out to determine the effectiveness of trans-sinus implants in the rehabilitation of atrophic jaws., (Copyright © 2024 Editorial Council for The Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
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- 2024
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9. Oropharyngeal Geometry of Maxilectomized Patients Rehabilitated with Palatal Obturators in the Trans-surgical Period: Repercussions on the Voice.
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Revoredo ECV, Gomes AOC, Ximenes CRC, Oliveira KGSC, Silva HJD, and Leão JC
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- Humans, Male, Female, Middle Aged, Aged, Treatment Outcome, Oropharynx physiopathology, Oropharynx surgery, Adult, Speech Production Measurement, Acoustics, Maxilla surgery, Maxilla physiopathology, Voice Quality, Speech Intelligibility, Speech Acoustics, Palatal Obturators
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Introduction: Patients undergoing maxillectomies may present alterations in the stomatognathic functions involved in oral communication. Rehabilitative treatment should favor the rescue of these functions, through surgical flaps, obturator prostheses or both., Objectives: The present study aims to present the impact of the use of the palatal obturator on the oropharyngeal geometry and on the voice of patients undergoing maxillectomies, after adaptation to trans-surgical palatine obturators (TPO)., Methods: Twelve patients treated at a Cancer Hospital, submitted to maxillectomy and rehabilitated during surgery were evaluated. The oropharyngeal geometry was measured by acoustic pharyngometry and the vocal parameters were evaluated through auditory-perceptual and acoustic analyses. The comparison between the results with and without TPO was analyzed using the Wilcoxon test and the correlation between oropharyngeal measurements and acoustic parameters using Spearman's correlation coefficient, all with a significance level of 5%., Results: There was a decrease in the following oropharyngeal measurements with the use of TPO: length of the pharyngeal cavity and vocal tract, volume of the oral cavity, pharyngeal and vocal tract and area of the oropharyngeal junction. There was no difference in the length of the oral cavity and in the glottic area between situations with and without TPO. In the vocal evaluation, changes in intelligibility and resonance were observed in the situation without TPO and, in only one case, mild hypernasality was detected in the situation with TPO., Conclusions: It is concluded that the use of TPO brought the oropharyngeal measurements closer to normal values and provided an improvement in speech intelligibility and vocal resonance in maxilectomized individuals., (Copyright © 2022 The Voice Foundation. Published by Elsevier Inc. All rights reserved.)
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- 2024
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10. Is the use of Pentoxifylline and Tocopherol effective in the treatment of Osteoradionecrosis of the jaws or for the treatment of medicationosteonecrosis of the jaw? An overview.
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de Morais RPL, de Aguiar AWPB, da Hora Sales PH, Carvalho AAT, Vescovi P, Meleti M, and Leão JC
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- Humans, Jaw Diseases therapy, Jaw Diseases drug therapy, Jaw Diseases chemically induced, Jaw Diseases diagnosis, Treatment Outcome, Systematic Reviews as Topic, Osteoradionecrosis drug therapy, Osteoradionecrosis therapy, Osteoradionecrosis etiology, Osteoradionecrosis pathology, Pentoxifylline therapeutic use, Pentoxifylline administration & dosage, Tocopherols therapeutic use, Tocopherols administration & dosage
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Purpose: The aim of the present study was to determine the methodological quality of systematic reviews that evaluated the effectiveness of pentoxifylline and tocopherol (PENTO) in the treatment of osteoradionecrosis of the jaw (ORNJ) and medication-related osteonecrosis of the jaw (MRONJ)., Methods: Searches were performed in Databases including PubMed, Scopus, LILACS, DARE, Cochrane Library, and SIGLE through OpenGrey until March 2024, were evaluated by two independent reviewers to answer the following question: Is the use of PENTO protocol effective in the treatment of ORNJ or for the treatment of MRONJ?, Results: A total of 256 articles were initially identified; however, following the use of appropriate inclusion and exclusion criteria, five systematic reviews were identified for detailed analysis. The final study sample comprised 588 patients: 397 patients with ORN and 197 patients with MRONJ who were treated with PENTO. The total recovery of individuals who used the PENTO protocol was 62,2 % for ORN and 100 % for MRONJ, with a follow-up period of 1 month to 10 years. The methodological quality of the studies was assessed using the AMSTAR 2 tool, in which four were of low quality and 1 moderate quality., Conclusion: The treatment of ORN and MRONJ with pentoxifylline and tocopherol has shown good results in the studies presented, with a partial or total reduction in bone exposure. However, the low quality of the relevant reports highlights the need for primary and secondary studies with better methodological rigor to reduce bias and provide reassurance for this treatment option., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Masson SAS. All rights reserved.)
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- 2024
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11. Piezoelectric Surgery, Er:YAG Laser Surgery and Nd:YAG Laser Photobiomodulation: A Combined Approach to Treat Medication-Related Osteonecrosis of the Jaws (MRONJ).
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Vescovi P, De Francesco P, Giovannacci I, Leão JC, and Barone A
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Medication-related osteonecrosis of the jaw (MRONJ) is a drug complication that can occur in patients taking antiresorptive or antiangiogenic drugs. Although it is a well-documented disease, there is no widely accepted treatment. However, several therapeutic approaches have been proposed. The surgical approach in many advanced cases appears inevitable; however, the results are not yet defined and predictable. This study aimed to propose a combined surgical approach with a piezoelectric device and laser (Er:YAG for bone ablation and Nd:YAG laser for photobiomodulation) in a young patient with breast cancer and bone metastasis under denosumab treatment, affected by spontaneous stage 3 MRONJ with maxillary sinus involvement. The patient under study reported no post-operative discomfort, with painkiller intake limited to the day after surgery. Total mucosal healing was observed without recurrences for more than 4 years after surgery. According to the results of our preliminary study, a combined surgical approach using a piezoelectric device and laser therapy is effective in managing patients affected by MRONJ, leveraging the clinical and biological advantages of these different techniques.
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- 2024
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12. Effectiveness of dental implants in patients undergoing radiotherapy for head and neck cancer: An umbrella review.
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Zarzar AM, Sales PHDH, Barros AWP, Arreguy IMS, Carvalho AAT, and Leão JC
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- Humans, Dental Implantation, Endosseous, Systematic Reviews as Topic, Dental Implants, Head and Neck Neoplasms radiotherapy
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Objective: The objective of this overview is to evaluate the effectiveness of dental implants placed in patients who underwent radiotherapy for the treatment of head and neck cancer, as well as to assess the methodological quality of the included systematic reviews., Methods: The study was conducted in four PubMed, Lilacs, Dare Cochrane and Google Scholar databases until July 2022, using the descriptors "Radiotherapy," "Dental implants," and "Head and Neck Cancer.", Results: 958 studies were found in the initial search and after applying the inclusion and exclusion criteria, fifteen systematic reviews were selected to compose this overview and had their methodological quality evaluated by the AMSTAR 2 tool., Results: 24,996 implants in 5487 patients were evaluated with a rate of success rate of 86.2% in patients who underwent radiotherapy and 95.2% in patients who did not undergo radiotherapy. Only one of the systematic reviews was of high quality according to AMSTAR 2., Conclusion: Oral rehabilitation with dental implants in patients with a history of head and neck cancer undergoing radiotherapy is a valid therapy. However, given the level of evidence found, further studies with better design are necessary to provide greater confidence in the clinical decision., (© 2023 Special Care Dentistry Association and Wiley Periodicals LLC.)
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- 2024
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13. Is it necessary to use bone grafts to prevent defects at the lower border of the mandible after mandibular advancement?-a systematic review.
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da Hora Sales PH, Maffìa F, Vellone V, Ramieri V, and Leão JC
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- Humans, Prospective Studies, Osteotomy, Sagittal Split Ramus methods, Retrospective Studies, Esthetics, Dental, Mandible surgery, Mandibular Advancement methods
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Introduction: Defects in the lower border of the mandible may represent an aesthetic problem after mandibular advancement in orthognathic surgery. The use of bone grafts has been reported in the literature as a possibility to reduce these defects in the postoperative period., Objective: The objective of this systematic review is to answer the following research question: Is it necessary to use bone grafts to prevent defects at the lower border of the mandible after mandibular advancement?, Methods: The literature search was conducted on MEDLINE via PubMed, Scopus, Central Cochrane, Embase, LILACS, and Sigle via Open Gray up until December 2020. Five studies were eligible for this systematic review, considering the previously established inclusion and exclusion criteria., Results: 1340 mandibular osteotomies were evaluated, with a mean advance of 8 mm, being 510 with bone graft (42 defects), 528 without graft (329 defects), and 302 with an alternative technique (32 defects). Regarding the type of bone graft used, three articles used xenogenous or biomaterial grafts and two allogenous bone grafts. The results of the meta-analysis showed a reduction in the presence of defects in the bone graft group: OR 0.04, 95% CI = 0.01, 0.19; p = 0.0005, (I2 = 87%; p < 0.0001)., Conclusion: The use of bone grafts seems promising in reducing defects in the lower border of the mandible after mandibular advancement. New controlled prospective studies with a larger number of participants are needed to ensure the effectiveness of this procedure., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2023
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14. Is HIV positive a risk factor or contraindication in dental implant therapy?
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Barros AWP, Sales PHDH, Feitosa LSG, Carvalho AAT, and Leão JC
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- Humans, Contraindications, Risk Factors, Health Personnel, Dental Implantation, HIV Infections complications, HIV Infections drug therapy
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HIV pathogenesis affects TCD4+ lymphocytes, causing impairment of the immune system. Thus, the consequent immunological fragility of individuals with the disease and the absence of studies that serve as a guide for clinicians' decision-making make many healthcare professionals recognize it as a synonym of contraindication for oral rehabilitation treatments with dental implants., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2023
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15. Effectiveness of Autogenous Chin Bone Graft in Reconstructive Surgery of Cleft Patients: A Systematic Review With Meta-Analysis and Algorithm of Treatment.
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Sales PHDH, Cetira Filho EL, Silva PGB, Costa FWG, and Leão JC
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- Humans, Bone Transplantation methods, Chin surgery, Algorithms, Surgery, Plastic, Cleft Palate surgery
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Purpose: Bone grafting is fundamental in the treatment of cleft patients, and several grafting materials have been used for this purpose. The objective of this study is to evaluate the effectiveness of autogenous bone graft from the chin in the reconstruction of cleft alveolus., Methods: Searches were performed in six databases (PubMed, Scopus, Cochrane, LILACS, Embase, and Google Scholar) by two researchers individually until July 2022. This study was registered in the International Prospective Register of Systematic Reviews (CRD42021267954) and conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The predictor variable is reconstruction technique, grouped into three levels: autogenous genial grafts, other endochondral autogenous grafts, and bio- or tissue-engineered materials. The outcome variables were alveolar cleft healing rate and bone height. The secondary variables were complications that included infections, necrosis, paresthesia, and dehiscence. Data analysis included the risk of bias and assessment of the certainty of evidence by the risk of bias in nonrandomized studies of interventions and grading of recommendations, assessment, development, and evaluation tools, respectively. The meta-analysis was performed with heterogeneity based on random effects of I
2 and 95% confidence., Results: In the initial search, 4,833 articles were found, and 10 of them were included in this systematic review. The included studies were from six countries on three different continents, with a sample of 692 patients. It was observed that the chin bone graft (214 patients) when compared to the endochondral bone graft (386 patients) reduced by 0.42 [confidence interval 95% = 0.18, 0.95] times the prevalence of bone resorption (P = .040 and I2 = 70%) analyzed in radiographic images. Two studies evaluated the bone filling through computed tomography, and there was no statistically significant difference between the groups (P = .340, I2 = 0%). Only two studies had a low risk of bias., Conclusion: Based on a low certainty of evidence, the chin autogenous bone graft proved to be similar to the endochondral graft in the reconstruction of the cleft alveolar; however, the limited number of studies with high heterogeneity and an uncertain risk of bias decreased the strength of the results found in this systematic review. New controlled primary studies should be carried out with the purpose of safely determining the effectiveness of chin bone grafts for the reconstruction of cleft alveolar., (Copyright © 2023 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)- Published
- 2023
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16. Is coadministration of preemptive medications an effective strategy for reducing inflammatory clinical events and the need for rescue medication after mandibular third molar surgery? A systematic review of randomized clinical trials.
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Cetira-Filho EL, Martins-Filho PR, de Barros Silva PG, da Hora Sales PH, Vieira AF, Sindeaux LME, Dos Anjos MO, Leão JC, and Costa FWG
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- Humans, Analgesics, Anti-Inflammatory Agents, Non-Steroidal therapeutic use, Pain drug therapy, Randomized Controlled Trials as Topic, Trismus drug therapy, Acetaminophen, Molar, Third surgery
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This study aimed to evaluate the scientific evidence on the effect of preemptive drug coadministration (PDC) for relieving inflammatory events (pain, swelling, and trismus) in mandibular third molar surgery. A PROSPERO-registered systematic review (CRD42022314546) was conducted according to the PRISMA guide. The searches were carried out in six primary databases and the gray literature. Studies not written in languages with the Latin alphabet (Roman) were excluded. Potential randomized controlled trials (RCTs) were screened for eligibility. Cochrane's Risk of Bias-2.0 (RoB) tool was assessed. A synthesis without meta-analysis (SWiM) based on a vote counting and an effect direction plot. Nine studies (low RoB) fulfilled the eligibility criteria and were included for data analysis, with a total of 484 patients. PDC mostly involved corticosteroids (Cort) and non-steroidal anti-inflammatory drugs (NSAIDs). PDC of Cort and other drugs mainly reduced pain scores (6 and 12 h postoperatively) and swelling (48 h postoperatively). PDC of NSAIDs and other drugs mainly reduced pain scores at 6, 8, and 24 h follow-up; swelling and trismus intensity ameliorated at 48 h postoperatively. The most frequently prescribed rescue medication was paracetamol, dipyrone, and paracetamol plus codeine. Results from individual studies have shown reduced consumption of ingested rescue analgesics. In summary, the available evidence from clinical trials included in this SWiM suggests that PDC may provide benefits in reducing the severity of inflammatory outcomes related to mandibular third molar surgery, especially the pain scores in the first hours after surgery, and the rescue analgesic consumption during the postoperative period., (© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2023
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17. Is Down syndrome a risk factor or contraindication for dental implants? A systematic review.
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Sales PHDH, Barros AWP, de Lima FJC, Carvalho AAT, and Leão JC
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- Humans, Dental Implantation, Endosseous, Contraindications, Risk Factors, Dental Implants, Down Syndrome complications
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Statement of Problem: Whether oral rehabilitation with dental implants in patients with Down syndrome leads to an increased complication rate is unclear., Purpose: The purpose of this systematic review was to determine the effectiveness of dental implants placed in patients with Down syndrome and whether the condition is a risk factor or contraindication for dental implant placement., Material and Methods: Searches were conducted in 6 databases, including the non-peer-reviewed literature, up to February 2021 by 2 independent reviewers according to established inclusion and exclusion criteria to answer this question: Is Down syndrome a risk factor or contraindication for oral rehabilitation with dental implants?, Results: A total of 655 studies were initially found in the databases. Five were included in this systematic review, all of which were observational studies. A total of 50 patients with 186 implants were evaluated, with a reported effectiveness of 79.1%. The risk of bias assessment determined that 3 of the 5 studies had a high risk of bias., Conclusions: Treatment with dental implants in patients with Down syndrome is a suitable option, but more complications are to be expected than with patients without this condition. Controlled studies with better methodological design and less risk of bias should be developed to improve the scientific evidence for the treatment of these patients., (Copyright © 2021 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
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- 2023
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18. Piezoelectric Surgery Is Effective in Reducing Pain, Swelling, and Trismus After Removal of Impacted Lower Third Molars: A Meta-Analysis.
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Nogueira DGM, Leão JC, Sales PHDH, Silva PGB, and Gomes ACA
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- Humans, Trismus prevention & control, Tooth Extraction methods, Pain, Postoperative prevention & control, Postoperative Complications, Edema etiology, Edema prevention & control, Molar, Third surgery, Tooth, Impacted surgery
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Purpose: Surgery of impacted lower third molars may be associated with postoperative complications. The aim of this study is to determine whether piezoelectric surgery is effective in reducing pain, swelling, and trismus compared to conventional rotary instruments during extraction of impacted lower third molars., Methods: For this systematic review, the searches were performed independently by 2 researchers. Randomized clinical trials that used the piezoelectric instrument for the removal of impacted lower third molars in humans were included. The predictor variable was the study group (piezo surgery vs rotary instruments). The main outcome was the analysis of postoperative pain, swelling, and trismus. Data analysis included risk of bias assessment (RoB 2 Cochrane) and meta-analysis with heterogeneity based on random effects I
2 and 95% confidence interval., Results: In the initial results, 956 articles were revised and after applying inclusion/exclusion criteria, the final sample was composed of 18 publications, all being randomized clinical trials. The results of this meta-analysis demonstrated a significant reduction in pain scores with a Cohen's d of -0.95 [CI 95% = -1.23 to -0.67] of high clinical impact (P < .001). In the piezo group there was a significant increase in mouth opening of 4.29 [CI 95% = 2.33 to 6.25] mm (P < .001). Regarding swelling, Tragus-Ang and Go-eye, both showed a significant reduction in the piezo group (P < .001). There was a significant increase of 7.32 [CI 95% = 4.40 to 10.24] minutes in the piezo group (P < .00001), and none of the studies showed a significant risk of bias., Conclusions: Piezo proved to be effective in reducing pain, swelling, and trismus in third molar surgeries even with longer surgical time, but due to the lack of standardization in primary studies regarding swelling, new, controlled and standardized studies should be carried out with the objective of proving the effectiveness of this therapeutic modality in the reduction of postoperative swelling., (Copyright © 2022 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)- Published
- 2023
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19. Do zirconia dental implants present better clinical results than titanium dental implants? A systematic review and meta-analysis.
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Sales PHDH, Barros AWP, Oliveira-Neto OB, de Lima FJC, Carvalho AAT, and Leão JC
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- Humans, Titanium, Dental Prosthesis Design, Dental Restoration Failure, Dental Implants
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Introduction: The purpose of this systematic review is to determine if the zirconia implants present better clinical results when compared to titanium implants., Methods: Searches were conducted in 5 databases including, until March 2022, by 2 independent reviewers, according to the inclusion and exclusion criteria established in the study and according whit this question: Do zirconia dental implants present better clinical results than titanium dental implants?, Results: 3235 studies were initially found in the researched databases. 03 randomized clinical trials were included in this systematic review and meta-analysis. A total of 71 patients with 192 implants (87 titanium and 105 zirconia) were evaluated, showing an effectiveness of 87,4% and 78,1% respectively and there was no statistically significant difference in terms of survival rate in the meta-analysis (P = 0.70; I
2 = 0%). Still in the meta-analysis, there was no statistically significant difference between titanium and zirconia implants in relation to the pink esthetich score or bleeding on probing, however, a favorable difference was observed for titanium in relation to marginal bone loss (P = 0.001; I2 = 0%). None of the studies evaluated had a low risk of bias., Conclusion: Oral rehabilitation with zirconia implants showed no advantages over titanium in this systematic review. However, the small number of studies included and the uncertain risk of bias may raise doubts in this interpretation and the results should be analyzed with caution. New studies with greater methodological rigor, follow-up time and number of interventions should be performed in order to safely determine the indication for the use of zirconia implants., Competing Interests: Declaration of Competing Interest None of the authors of the manuscript has any conflict of interest related to this study., (Copyright © 2022 Elsevier Masson SAS. All rights reserved.)- Published
- 2023
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20. Is low-level laser therapy effective in the treatment of herpes labialis? Systematic review and meta-analysis.
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Barros AWP, Sales PHDH, Silva PGB, Gomes ACA, Carvalho AAT, and Leão JC
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- Humans, Wound Healing, Herpes Labialis radiotherapy, Low-Level Light Therapy, Photochemotherapy
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The objective of this systematic review is to evaluate the effectiveness of low-level laser therapy in the treatment of herpes labialis. The searches were carried out independently by 2 researchers and the articles were selected through the electronic databases according to the inclusion and exclusion criteria previously established. Initially, 480 articles were found, of which 7 randomized clinical trials and 1 clinical trial were selected. In total, 928 patients were included. In the meta-analysis, the mean healing time for laser use was significant, showing a mean reduction of 1.37 [CI 95% = 0.92 to 1.82] days for tissue healing (p < 0.0001). In the meta-analysis to evaluate the time for crust formation, there was no significant difference between the groups and no significant reduction in the mean time for crust formation (p = 0.150). Only one of the selected studies had a low risk of bias. The use of low-level laser proved to be effective in the treatment of herpes labialis. However, due to the high risk of bias in the included studies, there is a need to carry out new standardized studies to prove the effectiveness of this therapy., (© 2022. The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature.)
- Published
- 2022
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21. Effectiveness of rhBMP-2 versus iliac autogenous bone graft in reconstructive surgery of cleft patients: an umbrella review.
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Sales PHDH, Oliveira-Neto OB, de Lima FJC, Carvalho AAT, and Leão JC
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- Bone Transplantation methods, Child, Humans, Ilium transplantation, Recombinant Proteins therapeutic use, Bone Morphogenetic Protein 2 therapeutic use, Cleft Palate surgery, Plastic Surgery Procedures methods
- Abstract
The objective of this umbrella review was to determine the effectiveness of rhBMP-2 in the reconstructive surgery of cleft patients through an evaluation of bone filling and volume of newly formed bone in the cleft area. A systematic search was carried out in PubMed/ Medline, Scopus, Cochrane Database of Abstracts of Reviews of Effects (DARE), Latin American and Caribbean Health Sciences Literature (LILACS), and the System for Information on Grey Literature in Europe (SIGLE) via Open Grey, until June 2020. Risk of bias was assessed using the ROBIS tool. A total of 2739 articles were identified and, based on the inclusion and exclusion criteria, six were included for final evaluation. The bone filling rate was 74.23% in the rhBMP-2 group and 72.38% in the autogenous group. Regarding the risk of bias, none of the articles had a low risk, four had an uncertain risk, and two a high risk. The results of this umbrella review show that the studies had high and uncertain risks of bias, and high heterogeneity. There was a lack of evidence regarding the possible complications offered by this therapy. The recommendation to use BMP-2 for alveolar cleft reconstruction, especially in a paediatric population, should be viewed with caution. New primary studies are needed to assess this variable and safely determine the use of rhBMP-2 in reconstructive surgery for cleft patients., Competing Interests: Conflict of interest We have no conflicts of interest., (Copyright © 2021 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2022
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22. Do lower third molars increase the risk of complications during mandibular sagittal split osteotomy? Systematic review and meta-analysis.
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Cetira Filho EL, Sales PHH, Rebelo HL, Silva PGB, Maffìa F, Vellone V, Cascone P, Leão JC, and Costa FWG
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- Humans, Mandible surgery, Mandibular Nerve, Mandibular Osteotomy, Risk Factors, Molar, Third surgery, Osteotomy, Sagittal Split Ramus adverse effects, Osteotomy, Sagittal Split Ramus methods
- Abstract
The aim of this systematic review was to investigate whether the presence of third molars (3Ms) during sagittal split osteotomy of the mandible increases the risk of complications. Searches were conducted using MEDLINE via PubMed, LILACS, Cochrane Central, Scopus, DOSS, and SIGLE via OpenGrey up to December 2020. Fifteen articles were included for evaluation and 14 in the meta-analysis, with a total of 3909 patients and 7651 sagittal split osteotomies (670 complications). Inferior alveolar nerve (IAN) exposure in the proximal segment was the most frequent complication (n = 409), followed by bad splits (n = 151). Meta-analysis revealed no significant increase in the incidence of 3M-related IAN exposure (P = 0.45), post-surgical infections (P = 0.15), osteosynthesis material removal (P = 0.37), or bad splits (P = 0.23). The presence of 3Ms was associated with a reduced risk of nerve disorder (P = 0.05) and favoured bad splits in the lingual plate (P = 0.005). The quality of evidence was very low, mainly due to non-randomized study designs, high risk of bias, inconsistency, and imprecision. This systematic review suggests that the removal of 3Ms before sagittal mandibular osteotomy does not reduce the incidence of complications. Thus, we recommend future better-designed studies with rigorous methodologies and adjustments for confounding factors., (Copyright © 2021 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
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23. Lessening COVID-19 healthcare burden in dental practice via rapid serological tests.
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Cohen Goldemberg D, de Melo AC, de Melo Pino LC, Antunes HS, Leão JC, and Porter S
- Subjects
- Delivery of Health Care, Humans, Serologic Tests, COVID-19
- Published
- 2022
- Full Text
- View/download PDF
24. Comparison of two alar cinch base suture in orthognathic surgery: a randomized clinical trial.
- Author
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Cavalcanti TBB, Aires CCG, Souza RRL, Gueiros LAM, Vasconcellos RJH, and Leão JC
- Subjects
- Cephalometry methods, Female, Humans, Male, Maxilla surgery, Nasal Cartilages surgery, Osteotomy, Le Fort methods, Suture Techniques, Sutures, Orthognathic Surgery
- Abstract
Le Fort I osteotomy is widely used in orthognathic surgery to correct maxillary deformities. However, this osteotomy may be related with the increase of alar base width. The aims of the present study were to compare two alar cinch suture after Le Fort I osteotomy and observe which type presents a better result in controlling the enlargement of the alar base after maxillary repositioning in orthognathic surgery. A randomized clinical trial was carried out with 40 patients randomly assigned in two intervention groups: group 1 - patients submitted to internal suture and group 2 - patients submitted to external suture. Of the 40 patients, 65% were female and 35% were male. The mean age of the patients was 30,25 in group I and 28,6 in group II. There was an increase in the alar base width in both groups, with significant difference between the means (P < 0,001). It was possible to compare the evolution of the means of the alar base width between group I and group II. Thus, it was observed that the external technique (group II) better controlled alar base width after Le Fort I osteotomy. It was not possible to relate the enlargement of the alar cinch with maxillary movement performed (P > 0,05). Overall, alar base cinch suture is an essential component of Le Fort osteotomies to control the alar base width. In this study, the external technique was more effective when compared to the internal technique in controlling the enlargement of the alar base width.
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- 2022
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25. Is the Er: YAG Laser Effective in Reducing Pain, Edema, and Trismus After Removal of Impacted Mandibular Third Molars? A Meta-Analysis.
- Author
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Sales PHDH, Barros AWP, Silva PGB, Vescovi P, and Leão JC
- Subjects
- Edema etiology, Edema prevention & control, Humans, Molar, Third surgery, Pain, Postoperative prevention & control, Randomized Controlled Trials as Topic, Tooth Extraction adverse effects, Trismus etiology, Trismus prevention & control, Lasers, Solid-State therapeutic use, Tooth, Impacted complications, Tooth, Impacted surgery
- Abstract
Purpose: Removal of impacted third molars can be associated with complications such as pain, edema, and trismus that can increase the morbidity of the procedure. The purpose of this study is to determine whether the Erbium: yttrium aluminum garnet (Er: YAG) laser is effective in reducing pain, swelling and trismus compared to rotary instruments in removing impacted lower third molars (3Ms)., Methods: For this systematic review, the searches were carried out independently by 2 researchers and the articles were selected according to the inclusion and exclusion criteria previously established. The predictor variable was the study group (Er: YAG laser versus rotary instruments). The main outcome was the analysis of post-operative pain, edema, and trismus after third molar extractions. Data analysis included the risk of bias evaluation (RoB 2 Cochrane) and meta-analysis with random effects I
2 based heterogeneity and 95% confidence., Results: In the initial results, 1,371 articles were found and 6 randomized controlled trials (RCT) were selected to compose this study. A total of 299 lower 3Ms were removed, 126 with the Er: YAG laser, 142 with a drill and 31 with a piezoelectric instrument. The results of this meta-analysis showed that in the laser group there was a significant reduction in edema (1.82 [CI95% = -3.06 to -0.57] cm (P = .004)) and complications (P = .0004), a slight reduction in pain after 2 days (P = .030) and there was no variation in trismus (P = .200) when compared to the drill group. The surgery and/or osteotomy time was shorter in the drill group. Only 1 study presented low risk of bias., Conclusions: The Er: YAG laser has been shown to be effective in reducing edema, pain and complications in impacted lower 3M surgeries. However due to the lack of standardization in Er: YAG laser therapy, new controlled and standardized studies should be performed with the aim of proving the efficacy of this therapeutic modality., (Copyright © 2021 The American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)- Published
- 2022
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26. Evaluation of the salivary flow of patients undergoing conventional radiotherapy for head and neck cancer.
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Lima MHCT, Ribeiro LN, Albuquerque RF, Carvalho AAT, Silva IHM, and Leão JC
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- Cross-Sectional Studies, Humans, Male, Head and Neck Neoplasms radiotherapy, Xerostomia etiology
- Abstract
The purpose of this cross-sectional, quantitative study was to evaluate the salivary flow of 20 patients undergoing conventional 2-dimensional radiotherapy in the head and neck region. Unstimulated salivary flow was measured with the spitting technique. In addition, xerostomia was evaluated through the Eisbruch grading system and the Xerostomia Inventory (XI). The patients were evaluated 3 times: D0, before the first radiotherapy session; D17, after the 17th radiotherapy session; and D35, after the last radiotherapy session. Most of the patients in the present study were men (70%). The larynx was the most frequent site of cancer in this sample (45%). The most prevalent oral alteration during radiotherapy was odynophagia (75%). The analysis of subjective symptoms of xerostomia revealed no statistically significant differences (P = 0.059). However, statistically significant differences in the XI were found, with scores increasing from D0 to D17 and D35 (P = 0.004). With regard to the objective symptoms of xerostomia, most patients started treatment in grade 1 and remained in the same category at the end of radiation. There was a slight increase in salivary volume during treatment, an atypical finding that can probably be explained by the use of low-level laser, which was applied to prevent oral mucositis in all of the patients. The mean total radiation dose (65 Gy) received by the patients in the present sample did not appear to influence the XI values or salivary volume. The data reinforced the subjective nature of xerostomia, which is not always related to hyposalivation.
- Published
- 2021
27. Is Sjogren's syndrome a risk factor/contraindication for dental implants? An umbrella review.
- Author
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Barros AWP, Sales PHDH, Carvalho AAT, Patel P, Porter S, and Leão JC
- Subjects
- Contraindications, Humans, Risk Factors, Systematic Reviews as Topic, Dental Implants, Sjogren's Syndrome
- Abstract
Introduction: There have been concerns that longstanding oral dryness secondary to Sjogren's syndrome may increase the risk of failure of dental implants., Aims: The aim of the present study was to determine the level of methodological quality of systematic reviews that evaluated the effectiveness of dental implants in patients diagnosed with Sjogren's syndrome., Methods and Results: Databases of PubMed/Medline, LILACS, Science Direct and Dare Cochrane to October 2020 were evaluated. A total of 833 articles were initially identified but following use of appropriate inclusion and exclusion criteria 4 papers were identified for detailed analysis. An eventual study sample comprised 722 implants placed in 189 patients with a 95.22% success rate, the minimum follow-up time was 45.2 ± 23.8 months and the maximum 125.5 months. The studies were assessed for their methodological quality by the AMSTAR 2 tool, in which 3 had critically low quality and one low quality., Conclusion: Oral rehabilitation with dental implants in patients with Sjogren's syndrome seems to have a high success rate; however, the low quality of relevant reports highlights the need for primary and secondary studies with better methodological design in order to reduce bias and provide reassurance for this treatment option., (© 2021 Special Care Dentistry Association and Wiley Periodicals LLC.)
- Published
- 2021
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28. Evaluation of a mucoadhesive pilocarpine tablet for the treatment of xerostomia: a randomized, double-blind, crossover clinical trial.
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Gusmão GMAS, Borba PM, Galindo MA, Souto Maior LF, Gueiros LAM, Leão JC, Soares Sobrinho JL, and Carvalho AAT
- Subjects
- Aged, Aged, 80 and over, Double-Blind Method, Humans, Middle Aged, Saliva, Tablets, Pilocarpine, Xerostomia drug therapy
- Abstract
The objectives of this study were to determine the effectiveness of a mucoadhesive tablet of pilocarpine, 5 mg, for the treatment of xerostomia and verify its pharmacokinetic profile. The randomized, double-blind, crossover clinical trial involved 25 older adults (60 to 80 years) with xerostomia and hyposalivation who were randomly divided into groups A and B. Once daily, for 7 days, group A used a mucoadhesive tablet containing pilocarpine, while group B used a mucoadhesive tablet without the active ingredient (first intervention). After 7 days of washout (no treatment), use of the medications resumed for 7 days, with a crossover between groups (second intervention). Xerostomia was evaluated through a shortened version of the Summated Xerostomia Inventory-Dutch Version, and the unstimulated salivary flow (USF) and stimulated salivary flow (SSF) of the patients were measured. The patients were evaluated at baseline and 7, 14, and 21 days. Then, the pharmacokinetic profiles of mucoadhesive and conventional oral pilocarpine tablets were compared using saliva obtained from 8 patients. Both of the interventions resulted in a significant reduction in Summated Xerostomia Inventory scores and a significant increase in the mean USF (P < 0.05). A statistically significant increase in the mean SSF only occurred when pilocarpine was administered (P < 0.05). No significant adverse effects were found. The mucoadhesive tablet resulted in much higher salivary concentrations of pilocarpine than did the conventional oral tablet. Both formulations of the mucoadhesive tablet, with or without pilocarpine, relieved patients' dry mouth symptoms. Trial registration: Registro Brasileiro de Ensaios Clinicos (ReBEC) No. RBR-9qdnws.
- Published
- 2021
29. Clinical applicability of natural products for prevention and treatment of oral mucositis: a systematic review and meta-analysis.
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Lima ICGDS, de Fátima Souto Maior L, Gueiros LAM, Leão JC, Higino JS, and Carvalho AAT
- Subjects
- Humans, Pain, Antineoplastic Agents therapeutic use, Biological Products therapeutic use, Neoplasms drug therapy, Stomatitis drug therapy, Stomatitis prevention & control
- Abstract
Objective: A systematic review and meta-analysis was carried out to verify evidence regarding the efficacy and safety of the clinical applicability of natural products in the prevention and treatment of oral mucositis induced by chemotherapy and/or radiotherapy., Methodology: An electronic research according to the PICOS strategy, using the terms "natural products" and "oral mucositis," was carried out at Pubmed, Cochrane, Embase, and "gray literature." The stages of eligibility, data extraction, and quality assessment of the studies were carried out independently and in duplicate., Results: The number of studies identified as eligible was 151, including 47 randomized controlled trials, reporting a total of 3075 participants undergoing some therapy with natural products on oral mucositis. The included clinical trials covered a variety of 31 types of natural products. Considering the risk of bias of the clinical trials, 24 studies (51.1%) were considered to have a low overall risk of bias, nine (19.1%) were at moderate risk, and 14 clinical trials (29.8%) were at high risk of bias. Honey was the most assessed natural agent. Fourteen studies (3.4%) reported that natural agents reduced pain., Conclusion: The results of the meta-analysis support a positive effect of honey and Aloe vera in reducing mucositis in patients receiving cancer therapy., Clinical Relevance: The results found add relevant information to the scientific community regarding the prevention and treatment of mucositis. Graphical abstract.
- Published
- 2021
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30. Pentoxifylline, tocopherol, and sequestrectomy are effective for the management of advanced osteoradionecrosis of the jaws-a case series.
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Dos Anjos RS, de Pádua Walfrido GN, de Hollanda Valente RO, Gueiros LA, Carvalho AAT, Patel P, Porter S, Leão JC, and Silva IHM
- Subjects
- Adult, Aged, Aged, 80 and over, Antioxidants pharmacology, Female, Humans, Male, Middle Aged, Osteoradionecrosis pathology, Pentoxifylline pharmacology, Platelet Aggregation Inhibitors pharmacology, Tocopherols pharmacology, Antioxidants therapeutic use, Jaw pathology, Osteoradionecrosis drug therapy, Osteoradionecrosis surgery, Pentoxifylline therapeutic use, Platelet Aggregation Inhibitors therapeutic use, Tocopherols therapeutic use
- Abstract
Background: The aim of the present study was to evaluate the efficacy of pentoxifylline and tocopherol for the management of osteoradionecrosis of the jaws., Methods: Twenty-five patients diagnosed with osteoradionecrosis of the jaws treated with pentoxifylline 400 mg + tocopherol 400 mg three times daily (tid) were evaluated. Clinical records and image tests were reviewed. All patients were previously submitted to head and neck radiation therapy and presented with a clinical and radiographic diagnosis of osteoradionecrosis of the jaws., Results: Following therapy with pentoxifylline and tocopherol, 76% (19/25) of the patients showed complete mucosal healing, in which 47.3% (9/19) did not undergo sequestrectomy. From this particular group, 77.7% (7/9) were in stage I and 33.3% (3/9) used the protocol for up to 3 months. Among those who underwent to sequestrectomy, complete mucosal healing was observed in 52.7% (10/19). Among these, 60% (6/10) were in stage I and 100% of the patients were using the protocol for more than 3 months. In all other patients, partial healing of the mucosa was observed since they presented advanced disease. These represented 24% of the sample (6/25), 66.6% (4/6) were in stage III, and 60% (4/6) used the protocol for over 6 months., Conclusion: Pentoxifylline and tocopherol may provide effective management of osteoradionecrosis of the jaws, and the association with sequestrectomy may avoid major surgical procedures.
- Published
- 2021
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31. Political polarization at the time of the coronavirus: A Brazilian's view.
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Leão JC
- Subjects
- Humans, COVID-19, Coronavirus, Coronavirus Infections epidemiology
- Published
- 2021
- Full Text
- View/download PDF
32. Photobiomodulation for mucosal repair in patients submitted to dental extraction after head and neck radiation therapy: a double-blind randomized pilot study.
- Author
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da Silva TMV, Melo TS, de Alencar RC, Pereira JRD, Leão JC, Silva IHM, and Gueiros LA
- Subjects
- Double-Blind Method, Female, Humans, Male, Middle Aged, Pilot Projects, Head and Neck Neoplasms radiotherapy, Low-Level Light Therapy methods, Tooth Extraction methods
- Abstract
Objective: The aim of this study was to evaluate the efficacy of photobiomodulation therapy (PBMT) on the mucosal healing of patients submitted to simple dental extractions after head and neck radiation therapy (HNRT)., Methods: Forty surgical procedures were randomly assigned into two groups: G1: dental extraction + PBMT (n = 19) and G2: dental extraction + sham-PBMT (n = 21). All patients received antibiotic therapy and the surgical alveolotomy to promote primary closure of the surgical site. Group 1 was submitted to PMBT according to the following parameters: 808 nm, 40 mW, 100 J/cm
2 , 70 s, 2.8 J/point, 14 J/session, and area of 0.028cm2 . The primary outcome was complete mucosal lining at 14 days, and the secondary outcomes were the presence of infection, postoperative pain, and analgesics intake at 7 days. The patients were evaluated every 7 days until 28 days., Results: Alveolar mucosal lining was faster in G1, and at 14 postoperative days, 94.7% patients evolved with complete alveolar mucosal lining compared to no patient from G2 (p < 0.001). Patients from G1 reported postoperative pain less frequently (G1 = 4, 21.1% × G2 = 14, 66.7%, p = 0.005), and also reported lower intake of analgesic pills at D7 (21.1% × 66.7%, p = 0.005%). PBMT had a significant positive impact on both postoperative pain (NNT = 2.192, CI95% = 1.372-5.445) and mucosal healing (NNT = 1.056, CI95% = 0.954-1.181)., Conclusions: This preliminary study strongly supports the use of PMBT to promote surgical alveolar mucosal lining in a shorter time and with less postoperative pain.- Published
- 2021
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33. Comments on "The tubarial salivary glands: First description of a potential new organ at risk for head-neck radiotherapy".
- Author
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Cohen Goldemberg D, Novaes Pinheiro T, Santos-Silva AR, de Melo AC, Leão JC, Fedele S, and Porter S
- Subjects
- Head, Humans, Neck, Salivary Glands
- Abstract
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
- Published
- 2021
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34. Why perform overviews and umbrella reviews in oral and maxillofacial surgery?
- Author
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Sales PHH and Leão JC
- Subjects
- Humans, Surgery, Oral
- Published
- 2021
- Full Text
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35. Effect of maxillary advancement on speech and velopharyngeal function of patients with cleft palate: Systematic Review and Meta-Analysis.
- Author
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Sales PHH, Costa FWG, Cetira Filho EL, Silva PGB, Albuquerque AFM, and Leão JC
- Subjects
- Adolescent, Adult, Female, Humans, Male, Maxilla surgery, Osteotomy, Le Fort, Speech, Young Adult, Cleft Lip, Cleft Palate surgery, Velopharyngeal Insufficiency surgery
- Abstract
This systematic review (SR) aimed to evaluate speech and velopharyngeal function (VPF) changes of patients with cleft palate (CLP) after maxillary advancement (MA) surgery. A two-phase PROSPERO-registered SR (CRD42019141370) was conducted following the PRISMA statements. Search strategies were developed for main databases (PubMed, Scopus, Web of Science, COCHRANE, LILACS, and EBSCOhost) and Grey literature information sources. The GRADE tool was used to evaluate the quality of evidence. From a total of 908 articles, 10 (205 men and 147 women; mean age ranging from 18.0 to 25.7 years) were selected for meta-analysis. Moderate to high risk of bias (Rob) was observed. The most common methods for outcomes evaluation were the Nasometer (speech) and nasoendoscopy (VPF). Speech changed from normal to hypernasal, and VPF worsening were reported in most studies. Comparing maxillary advancement interventions (osteogenic distraction versus Le Fort I), no statistically significant differences were found regarding benefit on speech and VPF. In summary, the effect of MA on speech and VPF remains controversial in CLP patients. The RoB, inconsistencies, and imprecisions severely affected the overall quality of evidence. Further adequately delineated clinical studies are necessary to investigate the potential effect of MA interventions on speech and VPF in CLP patients., (Copyright © 2020 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
- Full Text
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36. Sjögren's syndrome in systemic sclerosis: Impact on oral features.
- Author
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Gomes da Silva GS, Maymone de Melo ML, Leão JC, Carvalho AT, Porter S, Duarte ALBP, Dantas AT, and Gueiros LA
- Subjects
- Case-Control Studies, Humans, Scleroderma, Systemic complications, Sjogren's Syndrome complications
- Published
- 2020
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37. EBV and CMV viral load in rheumatoid arthritis and their role in associated Sjögren's syndrome.
- Author
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Sorgato CC, Lins-E-Silva M, Leão JC, Vasconcelos LR, Romão TP, Duarte AL, and Gueiros LA
- Subjects
- Arthritis, Rheumatoid complications, Case-Control Studies, DNA, Viral blood, Herpesvirus 4, Human, Humans, Sjogren's Syndrome complications, Arthritis, Rheumatoid virology, Cytomegalovirus Infections complications, Epstein-Barr Virus Infections complications, Sjogren's Syndrome virology, Viral Load
- Abstract
Introduction: The role of viral infections in the pathogenesis of autoimmune diseases has long been suggested, but little evidence is available., Objective: This study aimed to evaluate an association between EBV and CMV and the presence of rheumatoid arthritis and its association with Sjögren's Syndrome., Patients and Method: A case-control study was performed with 227 patients divided in RA (n = 99), RA/SS (n = 20), and C (n = 128). Resting salivary flow rate and Schirmer's test were performed; minor salivary gland biopsy was indicated in the case of suspected Sjögren's syndrome. CMV and EBV viral loads were quantified in peripheral blood, and their presence in glandular tissue samples was evaluated by in situ hybridization (EBV) and immunohistochemistry (CMV)., Results: EBV was more frequent in RA and RA/SS than in C (P < .000007). No correlation with clinical markers (P > .05) or between RA and RA/SS was found (P > .05). A higher number of EBV/DNA copies were found in RA (158.52 copies/μL) and RA/SS (99.24 copies/μL) (P = .739). EBV/DNA was associated with the Schirmer test (P = .0231). CMV was detected in one patient of the RA group. None of the viruses were detected in biopsies of minor salivary glands., Conclusions: Detection of EBV/DNA in peripheral blood was associated with RA regardless of the presence of SS., (© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2020
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38. Dental changes in children with congenital Zika syndrome.
- Author
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Gusmão TPL, Faria ABS, Leão Filho JC, Carvalho AAT, Gueiros LAM, and Leão JC
- Subjects
- Humans, Incisor pathology, Infant, Male, Zika Virus, Dental Enamel Hypoplasia virology, Tooth Abnormalities virology, Tooth Eruption, Zika Virus Infection complications
- Abstract
Objective: To describe oral alterations in children with congenital Zika syndrome (CZS)., Methods: This was a case series, whose research instrument was a structured questionnaire, associated with the use of medical record data and extra and intraoral clinical examination., Results: Thirty-two children were evaluated, the majority male (18/32%-56.3%), mean age 22 months (SD = 2.71). It was also observed that the majority of the patients (19/32%-59.4%) presented a low family income. All the children had a mean head circumference of 29.43 cm (SD = 1.42). Regarding the alterations, an ogival-shaped palate was observed in 14 children (43.7%), and delayed chronology of eruption was observed in 15 children (46.9%), of whom 7 children (21.9%) did not present eruption of the upper left lateral incisor (p = .0002) and upper right lateral incisor (p = .002) until the moment of analysis. Additionally, 03 children with yellowish dental pigmentation were identified in erupted teeth after the onset of phenobarbital use. Enamel hypoplasia was identified in 9 children (28.1%) and only one child with ankyloglossia., Conclusion: CZS may present delayed chronology of eruption, ankyloglossia, ogival-shaped palate, and enamel hypoplasia, requiring dental follow-up aimed at prevention, promotion, and rehabilitation of the health of these children., (© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. All rights reserved.)
- Published
- 2020
- Full Text
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39. High prevalence of syphilis in a female prison unit in Northeastern Brazil.
- Author
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Batista MIHM, Paulino MR, Castro KS, Gueiros LAM, Leão JC, and Carvalho AAT
- Subjects
- Adolescent, Adult, Brazil epidemiology, Condoms statistics & numerical data, Cross-Sectional Studies, Female, Humans, Middle Aged, Prevalence, Risk Factors, Syphilis prevention & control, Young Adult, Syphilis epidemiology
- Abstract
Objective To determine the prevalence of syphilis and the associated risk factors in a female prison unit. Methods This was a cross-sectional study including 113 women whom data were collected in two stages: first, blood test to check for syphilis seropositivity; and then collection of information through a form to assess risk situations for sexually transmitted infections. Results Overall, syphilis prevalence was found to be 22.1% among the female prison population (n=25) and 28.6% among pregnant women. A statistically significant relationship was found between syphilis infection and previous history of sexually transmitted infections (p=0.04). However, most participants diagnosed with the disease were unaware of a history of sexually transmitted infection in the last 12 months (n=20/80.0%). The use of condom with fixed partners was considered to be a protective factor (odds ratio of 0.76; 95% of confidence interval 0.68-0.85). Conclusion The prevalence of syphilis among the female prison population was high, particularly among pregnant women. Preventive and therapeutic measures as well as appropriate prenatal care can minimize the impact of syphilis in prison systems and, consequently, improve such health outcomes nationwide.
- Published
- 2020
- Full Text
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40. Oral features of systemic sclerosis: A case-control study.
- Author
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Gomes da Silva GS, Maymone de Melo ML, Leão JC, Carvalho AT, Porter S, Duarte ALBP, Dantas AT, and Gueiros LA
- Subjects
- Adult, Aged, Brazil epidemiology, Case-Control Studies, Dental Plaque Index, Female, Health Status, Humans, Male, Middle Aged, Periodontal Diseases complications, Periodontal Diseases diagnosis, Scleroderma, Systemic epidemiology, Gingival Hemorrhage epidemiology, Periodontal Attachment Loss, Periodontal Diseases epidemiology, Periodontitis epidemiology, Scleroderma, Systemic complications, Xerostomia epidemiology
- Abstract
Objective: The aim of this study was to evaluate the orofacial parameters of systemic sclerosis (SSc) and its related systemic features., Subjects and Methods: A descriptive case-control study was performed from November 2015 to October 2016. Ninety-three individuals were included and divided into SSc group (n = 50) and healthy controls (C, n = 43)., Results: Systemic sclerosis individuals were mostly women (43/50, 86%), with a mean age of 46 years (±11.6 years). Telangiectasia (42/50, 84%) and reduced mouth opening (35/50, 70%) were the most frequent orofacial findings. The periodontitis frequency was much higher in SSc individuals than in healthy controls (90.7% × 48.83%; p < .001). In addition, SSc individuals presented a distinctive pattern of periodontitis, with low probing pocket depth (2 ± 0.65 mm × 2 ± 0.24; p < .001), higher gingival recession (4 ± 2.13 × 0.14 ± 0,22; p < .001), higher periodontal attachment loss (6 ± 1.34 mm × 2 ± 0.43, p < .001), and lower gingival bleeding index values (7.05 ± 7.25 × 21.57 ± 15.66; p < .001)., Conclusions: Orofacial manifestations were common in SSc and included a unique pattern of periodontal manifestation, characterized by lower gingival bleeding index, higher periodontal attachment loss, and low probing depth., (© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. All rights reserved.)
- Published
- 2019
- Full Text
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41. Absence of influence of polymorphisms of the MBL2 gene in oral infections by HSV-1 in individuals with HIV.
- Author
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Barros KMA, Ribeiro Paulino M, Batista MIHM, Gueiros LAM, Souza PRE, Leão JC, and de Albuquerque Tavares Carvalho A
- Subjects
- Adolescent, Adult, Case-Control Studies, Female, Genetic Predisposition to Disease, Genotype, HIV Infections genetics, HIV-1 genetics, HIV-1 isolation & purification, HIV-1 physiology, Herpes Simplex etiology, Herpes Simplex virology, Herpesvirus 1, Human genetics, Herpesvirus 1, Human isolation & purification, Humans, Male, Middle Aged, Young Adult, HIV Infections complications, Herpes Simplex genetics, Herpesvirus 1, Human physiology, Mannose-Binding Lectin genetics, Mouth virology, Polymorphism, Single Nucleotide
- Abstract
Polymorphisms in the structural gene MBL-2 (mannose-binding lectin-2) may result in low MBL serum concentration, associated with greater susceptibility to infection. The study evaluated the effects of MBL-2 polymorphisms with the oral manifestations of the HSV in human immunodeficiency virus (HIV)-infected patients. An observational case-control study was carried out, with the sample comprising 64 HIV+ and 65 healthy individuals. The signs and symptoms of HSV oral infection were evaluated, and oral mucosa buccal smears were collected. Polymorphisms of the MBL-2 gene and HSV-1 DNA were amplified through real-time PCR. The data revealed that of 64 HIV+, 29.6% presented signs and symptoms of HSV oral infection. Of these, the HSV-1 DNA was detected through real-time PCR in 21% of cases, and in 13.3% of asymptomatic individuals. There was no statistically significant difference between the symptomatic (p = 1) and the asymptomatic (p = 0.52) individuals, HIV+ and HIV-. Different genotypes (AA, A0, or 00) did not contribute to the oral manifestation of HSV in the HIV+ patients (p = 0.81) or HIV- (p = 0.45). There was no statistically significant difference in either group (p = 0.52). No significant association was identified between the MBL-2 gene polymorphisms in the oral manifestation of HSV infection. However, further studies are recommended with larger population groups before discarding this interrelationship.
- Published
- 2019
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42. Clinical Assessment of Rosemary-based Toothpaste (Rosmarinus officinalis Linn.): A Randomized Controlled Double-blind Study.
- Author
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Valones MAA, Silva ICG, Gueiros LAM, Leão JC, Caldas AF Jr, and Carvalho AAT
- Subjects
- Dental Plaque Index, Double-Blind Method, Humans, Gingivitis, Rosmarinus, Toothpastes
- Abstract
The present study was to investigate the action of a toothpaste made from the extract of Rosmarinus officinalis Linn. (rosemary) in a clinical randomized, controlled, open and double-blind trial. One hundred and ten volunteers fulfilled the inclusion criteria and were randomly separated into two groups according to the toothpastes used: Group A (experimental) and Group B (control). They were assessed at baseline and 30 days after the study using the gingival bleeding index (GBI) and the plaque index (PI). Data analysis was conducted to calculate the effects of the two toothpastes on gingival bleeding and plaque, using measurements such as the excess relative risk (ERR), the Relative Risk Reduction (RRR), the Absolute Risk Reduction (ARR) and the Number Needed for Treatment (NNT). The two toothpastes provided similar results in terms of the reduction in the risk of gingival bleeding (relative and absolute): a reduction of 38% in Group A, ERR=0.38; a reduction of 29.3% in Group B, ERR=0.293; A and B reduced by 18% ARR=0.18). The reductions in bacterial plaque were also similar (22.7% reduction in Group A, RRR=0.227; 28% reduction in Group B, RRR= 0.28). The number needed for treatment values for bleeding and plaque were A and B NNT=5 and A and B NNT=7, respectively. The rosemary-based toothpaste effectively treated gingival bleeding and reduced bacterial plaque, when compared with conventional toothpaste.
- Published
- 2019
- Full Text
- View/download PDF
43. Oral Lichenoid Lesion Manifesting as Desquamative Gingivitis: Unlikely Association? Case Report.
- Author
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Lopes de Oliveira LM, Batista LHC, Neto APDS, Silva LB, Cimões R, Leão JC, Cintra ML, and Ribeiro CMB
- Abstract
Introduction: The aim of this report is to present a clinical case of oral lichenoid lesions associated with amalgam restorations with the presence of desquamative gingivitis for a nine months follow up period., Case Report: The histopathologic characteristics and direct immunofluorescence were compatible with Oral Lichenoid Lesion (LLO). Diagnosis was based on a synthesis of all available information, including medical history, clinical examination, histopathology and the results of specific tests, such as the patch test, which confirmed allergy to thimerosal, an organic compound of mercury., Discussion: The replacement of amalgam restorations has brought improvements to the instrument, as evidenced by the disappearance of desquamative gingivitis, aspect erythematosus and erosive lesions. The fading does not complete the same, however, indicates the need to continue has been under continuous observation, the patient, having in view the possibility of the existence of an underlying lichen planus.
- Published
- 2018
- Full Text
- View/download PDF
44. Palatal obturator designed by 3-dimensional prototyping for a patient with a large ameloblastoma: a case report.
- Author
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Revoredo ECV, Galembeck A, Ponzi EC, Leão JC, Arcoverde L, Araújo LC, and Leite SP
- Subjects
- Ameloblastoma diagnostic imaging, Dental Prosthesis Design, Humans, Imaging, Three-Dimensional methods, Male, Maxilla diagnostic imaging, Maxilla surgery, Maxillary Neoplasms diagnostic imaging, Middle Aged, Palatal Obturators, Tomography, X-Ray Computed, Ameloblastoma surgery, Maxillary Neoplasms surgery
- Abstract
The aim of the present report was to detail the advantages of using 3-dimensional (3D) prototyping in the planning, modeling, and manufacturing of an immediate palatal obturator for a 62-year-old man who underwent a left total maxillectomy to remove a solid, multicystic ameloblastoma. The prosthesis provided favorable restoration of stomatognathic functions, including speech, swallowing, and mastication. The use of an immediate obturator prosthesis made with 3D technology is an important aid in the treatment of patients diagnosed with tumors in the head and neck region.
- Published
- 2018
45. Risk factors and etiopathogenesis of potentially premalignant oral epithelial lesions.
- Author
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Porter S, Gueiros LA, Leão JC, and Fedele S
- Subjects
- Diagnosis, Oral, Disease Progression, Humans, Risk Factors, Carcinoma, Squamous Cell etiology, Carcinoma, Squamous Cell pathology, Cell Transformation, Neoplastic pathology, Erythroplasia pathology, Leukoplakia, Oral pathology, Mouth Neoplasms etiology, Mouth Neoplasms pathology, Precancerous Conditions pathology
- Abstract
Potentially malignant oral mucosal disease has some ability to give rise to malignancy of the oral epithelium, that is, oral squamous cell carcinoma (OSCC). The present article provides a succinct review of the possible or probable causes of potentially premalignant oral epithelial lesions. There is a focus upon studies that examined the causes or etiologic associations with clinically likely or histopathologically detectable oral epithelial dysplasia., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
46. IL17A polymorphism and elevated IL17A serum levels are associated with oral lichen planus.
- Author
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Gueiros LA, Arão T, Souza T, Vieira CL, Gomez RS, Almeida OP, Lodi G, and Leão JC
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Case-Control Studies, Female, Genetic Predisposition to Disease genetics, Humans, Male, Middle Aged, Polymorphism, Single Nucleotide, Young Adult, Interleukin-17 blood, Interleukin-17 genetics, Lichen Planus, Oral blood, Lichen Planus, Oral genetics
- Abstract
Objective: The aim of this study was to evaluate the association of IL17A G197A polymorphism and serum levels with oral lichen planus (OLP) susceptibility and clinical presentation., Subjects and Methods: Eighty-three individuals diagnosed with OLP and 99 healthy controls (C) were consecutively recruited. All participants had desquamating oral mucosal cells collected and DNA isolated for IL17A (G197A) genotyping. Blood samples of 42 OLP individuals and 23 healthy controls were collected for evaluation of IL17A serum levels., Results: IL17A G197A genotypes were associated with an increased chance of having OLP (GA/AA × GG, OR = 3.44, 95% CI = 1.87-6.33, p < .001). Overall A carriers (GA or AA) were more common in OLP (38.1%) than in C (20.2%; OR = 2.43, 95% CI = 1.53-3.87, p < .001). Serum levels of IL17A were higher among patients with OLP than in healthy controls (reticular, p = .0003; erosive, p < .001), but no difference was found among the disease types., Conclusions: IL17A G197A is associated with a higher susceptibility of developing OLP and these patients seem to present a considerable increase in IL17A serum levels. These findings suggest that Th17 cells, and IL17A in particular, may play a pivotal role in OLP pathogenesis., (© 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
47. Intraoral Pleomorphic Adenoma in Young Patients.
- Author
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Alves VLA, Pérez-de-Oliveira ME, de Castro JFL, Vieira CL, Leão JC, and Perez DEDC
- Subjects
- Adenoma, Pleomorphic pathology, Adolescent, Female, Humans, Lip, Male, Mouth Neoplasms pathology, Palate, Adenoma, Pleomorphic surgery, Mouth Neoplasms surgery
- Abstract
Background: Intraoral pleomorphic adenoma (PA) is rare in young individuals, with only single clinical reports or small patient series reported previously., Aim: The aim of this study was to describe the clinicopathological features of PA in 4 patients under 18 years of age, and to discuss the differential diagnosis of pediatric patients presenting with intraoral submucosal nodules., Methods: Between 2000 and 2015, all patients of intraoral PA in patients aged ≤18 years diagnosed in the Oral Pathology Laboratory of the Universidade Federal de Pernambuco, Brazil, were retrieved for the study. Clinical data were recorded from the clinical charts. Histopathological slides stained with hematoxylin and eosin were reviewed to confirm the diagnosis., Results: There were 4 cases of PA in patients aged ≤18 years. All patients in this patient series were males, with a mean age of 16.7 years. Three cases occurred in the palate, and in 1 case, the upper lip was affected. All PAs appeared as a painless, smooth surface, well-circumscribed, and submucosal nodule. All patients were surgically excised and subsequent histopathological analysis revealed well-circumscribed tumors composed of cells that were arranged in ducts within a fibromyxoid stroma. No signs of recurrence were observed in 3 patients after a mean follow-up of 30 months. One patient is lost to follow-up., Conclusion: Although PAs are unusual in young patients, they should be considered in the differential diagnosis of oral submucosal nodules.
- Published
- 2018
- Full Text
- View/download PDF
48. Small palatal swelling: an uncommon presentation of intraoral schwannoma.
- Author
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Gueiros LA, Barkokebas A, Carvalho AT, and Leão JC
- Subjects
- Adult, Biopsy, Diagnosis, Differential, Humans, Male, Neurilemmoma pathology, Palatal Neoplasms pathology, Tomography, X-Ray Computed, Neurilemmoma diagnosis, Palatal Neoplasms diagnosis
- Abstract
Schwannomas are uncommon benign tumors arising in the nerve-supporting Schwann cells. Intraoral lesions usually present in the tongue or floor of the mouth as a submucosal nodule, while the palate is rarely affected. A 26-year-old white man presented with an asymptomatic submucosal fibroelastic nodule in the hard palate. The 2 × 2-cm lesion was covered by normal-appearing mucosa. Under the working diagnosis of minor salivary gland tumor, an incisional biopsy was performed, and analysis revealed an encapsulated tumor with a well-defined biphasic pattern: hypercellular areas with spindled cells arranged in palisades and less cellular areas formed by irregular arranged masses of elongated cells and fibers. The diagnosis of schwannoma was rendered, and the lesion was excised together with periosteum. No recurrence was observed after 30 months of follow-up. Palatal nodules usually present as minor salivary gland tumors; rarer lesions, such as schwannomas, represent a clinical diagnostic challenge. Clinicians should consider schwannoma in the differential diagnosis for palatal nodules and manage them with incisional biopsy and prompt treatment.
- Published
- 2017
49. Pulp Revascularization: A Literature Review.
- Author
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Araújo PRS, Silva LB, Neto APDS, Almeida de Arruda JA, Álvares PR, Sobral APV, Júnior SA, Leão JC, Braz da Silva R, and Sampaio GC
- Abstract
Reestablishing blood flow and allowing the continuation of root development are some of the objectives of pulp revascularization. This procedure is currently indicated for teeth with incomplete root formation as an alternative to the traditional treatment of apecification, which consists of inserting calcium hydroxide paste into the root canal for a determined time period in order to induce the formation of a calcified barrier. Although it is considered as the most classically employed therapy, the permanence of the paste for long time periods may lead to the weakening of the root due to hygroscopic properties, as well as proteolytic activities of calcium hydroxide. Therefore, there has been a permanent search for alternatives which allow the full development of immature teeth. Revascularization has emerged as such an alternative, and a range of treatment protocols can be found in the scientific literature. The aim of this paper is to accomplish a literature review concerning this issue.
- Published
- 2017
- Full Text
- View/download PDF
50. Increase in the nitric oxide release without changes in cell viability of macrophages after laser therapy with 660 and 808 nm lasers.
- Author
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Silva IH, de Andrade SC, de Faria AB, Fonsêca DD, Gueiros LA, Carvalho AA, da Silva WT, de Castro RM, and Leão JC
- Subjects
- Cell Survival radiation effects, Humans, Lasers, Semiconductor therapeutic use, Low-Level Light Therapy methods, Macrophages radiation effects, Nitric Oxide metabolism
- Abstract
The aim of this study was to evaluate the influence of low-level laser therapy (LLLT) with different parameters and wavelengths on nitric oxide (NO) release and cell viability. Irradiation was performed with Ga-Al-As laser, continuous mode and wavelengths of 660 and 808 nm at different energy and power densities. For each wavelength, powers of 30, 50, and 100 mW and times of 10, 30, and 60 s were used. NO release was measured using Griess reaction, and cell viability was evaluated by mitochondrial reduction of bromide 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) to formazan. LLLT promoted statistically significant changes in NO release and MTT value only at the wavelength of 660 nm (p < 0.05). LLLT also promoted an increase in the NO release and cell viability when the energy densities 64 (p = 0.04) and 214 J/cm
2 (p = 0.012), respectively, were used. LLLT has a significant impact on NO release without affecting cell viability, but the significance of these findings in the inflammatory response needs to be further studied.- Published
- 2016
- Full Text
- View/download PDF
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