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Introduction: One of the goals of malocclusion treatment is to improve the oral health-related quality of life (OHRQoL) of patients. The aim of this trial was to assess the OHRQoL of children before, during, and after anterior open bite (AOB) correction, compared with nontreated children, in a 2-arm parallel single-blind randomized controlled trial., Methods: Eighty children with AOB aged 8-10 years were randomly assigned to 2 groups (n = 40 each): a group treated with the use of fixed palatal crib (FPC; TG) and a control group (nontreated; CG). Randomization was performed with the use of BioEstat software. The outcome (OHRQoL) was assessed with the use of the validated Brazilian Portuguese version of the Child Perceptions Questionnaire (CPQ 8-10 ) applied before (baseline, phase 1), 3 months after FPC placement (phase 2), and 1 month after FPC removal (phase 3) in the TG. In the CG, CPQ 8-10 was applied at baseline (phase 1), 3 months (phase 2), and 12 months (phase 3). Data were analyzed by means of a blinded statistic with the use of Friedman, Wilcoxon, and Mann-Whitney tests (α = 0.05)., Results: All participants finished the RCT, and demographic characteristics were similar between groups. In phase 1, the TG had lower scores for the "social well-being" domain (P = 0.02). In phase 2, the CG had higher scores than the TG for the "emotional well-being" and "social well-being" domains, but the opposite was observed for "oral symptoms" and "functional limitations" (P < 0.001). In phase 3, the TG showed a lower impact on OHRQoL than the CG in all domains and in the overall score (P < 0.001). In the 3 phases, the CG showed progressive increase (mean scores 70.37, 74.70, and 84.22, respectively; P < 0.001) and the TG a decrease (mean scores 70.20, 70.80, and 6.05, respectively; P < 0.001) in overall scores. The increase of scores in the CG was considered to represent a serious harm., Conclusions: Correction of AOB had a positive impact and failure to correct it had a negative impact on the OHRQoL of children., Registration: This trial was not registered., Protocol: The protocol was not published before trial commencement., (Copyright © 2019 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.)

Objective: The aim of the present study was to evaluate association between psychological factors, socio-demographic conditions, oral habits and anterior open bite in five-year-old preschool children., Materials and Methods: A cross-sectional study was conducted with 764 pairs of children and parents/caregivers in preschools. The parents/caregivers answered questionnaires addressing oral health-related quality of life (OHRQoL), sense of coherence, locus of control, oral habits and socio-demographic characteristics. The children answered a self-report questionnaire addressing OHRQoL and were submitted to a clinical examination for the anterior open bite by examiners. Descriptive analysis was conducted, followed by Poisson's regression analysis., Results: The prevalence of anterior open bite was 15.2%. The following variables remained significantly associated with anterior open bite: pacifier use (PR = 7.09; 95% CI: 4.06-12.39), attending a public preschool (PR = 2.40; 95% CI: 1.68-3.43), digit sucking (PR = 2.15; 95% CI: 1.27-3.62), greater number of residents in the home (PR = 1.67; 95% CI: 1.18-2.36) and impact on OHRQoL according to child's report (PR = 1.56; 95% CI: 1.11-2.20)., Conclusions: Anterior open bite was associated with OHRQoL according to the children's reports. Moreover, attending a public preschool, a greater number of residents in the home, digit sucking and pacifier sucking were associated with this type of malocclusion.

Anterior open bite (AOB) is one of the most complex malocclusions to manage. AOB is caused by either by skeletal, genetic or environmental factors. Numerous treatment options are currently utilised to manage AOB. These vary from non-invasive behavioural shaping to orthodontic and surgical interventions. This paper reviews the available orthodontic and non-orthodontic interventions used in the management of AOB. The literature review was carried out using the PubMed search engine from the first of January 2000 to the first of June 2017. Two major keywords (open bite and anterior open bite) were used in addition to 23 minor keywords in the review. AOB is one of the most complex malocclusions to treat with high relapse rates. Long term outcome in treatments of patients with AOB was substantially low. Relapse rates were not taken into consideration for some of the literature reviewed. Despite limitations of the literature, it is recommended that orofacial myofunctional therapy (OMT) and non-orthodontic intervention (NOI) be used in conjunction as an effective treatment option for Anterior Open Bite., (Copyright © 2018. Published by Elsevier Taiwan.)

Introduction: The aim of this study was to evaluate the effect of malocclusion severity on oral health-related quality of life and food intake ability in adult patients, controlling for sex, age, and the type of dental clinic visited., Methods: The sample consisted of 472 Korean patients (156 male, 316 female) with a mean age of 21.1 (SD, 8.6) years in a dental hospital and a private clinic. The correlations between the Korean version of the Oral Health Impact Profile-14 (OHIP-14K), subjective food intake ability (FIA) for 5 key foods, and Index of Orthodontic Treatment Need-Dental Health Component (IOTN-DHC) were investigated., Results: The mean IOTN-DHC and OHIP-14K scores were significantly higher for the dental hospital patients than for the private clinic patients (IOTN-DHC, P <0.001; OHIP-14K, P <0.05). Malocclusion severity was significantly higher in male than in female subjects (P <0.001). Older patients perceived their oral health-related quality of life more negatively than did the teens (P <0.001). As the severity of the malocclusion increased, oral health-related quality of life and masticatory function worsened (OHIP-14K, P <0.001; FIA, P <0.05)., Conclusions: As the severity of the malocclusion and the age of the patients increased, oral health-related quality of life and masticatory function relatively deteriorated. This finding provides evidence that severe malocclusions are associated with lower quality of life and less masticatory efficiency in older patients., (Copyright © 2016 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.)

Introduction: In this cross-sectional study, we investigated the impact of the orthosurgical treatment phases on the oral health-related and condition-specific quality of life (QoL) of patients with dentofacial deformities., Methods: Two hundred fifty-four orthognathic patients were allocated into 4 groups according to treatment phase: initial (not yet treated), presurgical orthodontics, postsurgical orthodontics, and retention. Data were collected using the Oral Health Impact Profile to evaluate the oral health-related QoL, the Orthognathic QoL Questionnaire to analyze the condition-specific QoL, and the Index of Orthodontic Treatment Need to assess malocclusion severity and esthetic impairment. Specific malocclusion characteristics were also documented., Results: A negative binomial regression analysis showed that the initial group had a more negative oral health-related QoL than did the postsurgical, presurgical, and retention groups (relative risks, 1, 0.79, 0.74 and 0.25, respectively). The initial group had a more negative condition-specific QoL than did the presurgical, postsurgical, and retention groups (relative risks, 1, 0.77, 0.38 and 0.15, respectively) regardless of age, income, or education; women reported greater negative impacts than men. Certain occlusal traits were related to higher Orthognathic QoL Questionnaire scores (P <0.01)., Conclusions: Patients who completed their orthosurgical treatment had a significantly better oral health-related QoL and a more positive esthetic self-perception than did those undergoing treatment and those who were untreated. Crowding, crossbite, open bite, concave profile, edge-to-edge overjet, or Class III malocclusion negatively affected oral health-related QoL., (Copyright © 2016 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.)

Introduction: Our objective was to determine whether dental esthetics have any influence on finding a new job., Methods: Ten patients with orthodontic treatment needs for various types of malocclusions were selected. Smiling facial photographs of all patients were obtained and digitally altered (orthodontic correction of teeth). After the images were obtained, 2 different questionnaires were prepared (survey groups A and B) with the photographs without alteration (showing malocclusion) and altered (with orthodontic correction). Subjects appeared in one questionnaire (survey group) with an ideal smile and also in the other (survey group) with a nonideal smile. The images were evaluated by 100 persons responsible for hiring staff for commercial companies. In each survey group, 4 questions were asked regarding the individuals' likelihood of being hired, honesty, intelligence, and efficiency at work. Analysis of variance for repeated measures was used to determine the differences in the evaluations of patients with ideal and nonideal dental esthetics for the 4 characteristics evaluated. The level of significance adopted was 5%., Results: The photographs of persons with ideal dental esthetics were, on average, evaluated as superior with respect to intelligence and likelihood of being hired than were the photographs of the same subjects with nonideal dental esthetics. For the characteristics of honesty and efficiency, no significant differences were observed in the evaluations between those with ideal and nonideal smiles (P <0.05)., Conclusions: Persons with ideal smiles are considered more intelligent and have a greater chance of finding a job when compared with persons with nonideal smiles., (Copyright © 2014 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.)

The aim of the present study was to assess the impact of malocclusion on oral health-related quality of life (OHRQoL) among preschool children and their families. This study involved 732 preschoolers. Parents/caregivers filled out the Brazilian version of the Early Childhood Oral Health Impact Scale (B-ECOHIS) and a questionnaire addressing sociodemographic data. Overbite, overjet, and crossbite were recorded during the clinical examination. Bivariate and multiple Poisson regression analyses were performed and prevalence ratio (PR) were calculated (α = 5%). The prevalence of negative impact from malocclusion on OHRQoL was 27.6% among the children and 22.3% among the families. Mother's schooling (PR = 1.37; 95% CI: 1.10-1.70), parent's/caregiver's assessment of child's oral health (PR = 2.07; 95% CI: 1.60-2.58), history of toothache (PR = 3.84; 95% CI: 2.34-6.30), and visits to the dentist (PR = 0.59; 95% CI: 0.37-0.94) remained significantly associated with OHRQoL in the final model for the children, whereas parent's/caregiver's assessment of child's oral health (PR = 2.32; 95% CI: 1.71-3.14) and history of toothache (PR = 2.28; 95% CI: 1.69-3.09) remained significantly associated with OHRQoL for the families. Malocclusion was not associated with a negative impact on OHRQoL. In contrast, parents'/caregivers' perceptions regarding the oral health of their children and a history of toothache were predictors of a negative impact on the OHRQoL., (© 2014 Eur J Oral Sci.)

This study estimated the prevalence of negative self-perception of smile because of occlusion abnormalities and investigated their association according to standard clinical criteria. The sample consisted of 1290 randomly selected Brazilian adolescent boys and girls aged 12-16 years. The outcome of interest was dissatisfaction with smile, and data were collected using a standardized questionnaire. Occlusion characteristics were assessed using the dental aesthetic index (DAI). The other study variables were gender, age, and use of dental services. A chi-square test and Poisson multiple regression were used for statistical analysis. Of the 1290 students interviewed and examined, 539 (41.8 per cent) were dissatisfied with their smile; of these, 373 (69.2 per cent) assigned their dissatisfaction to the presence of an occlusal abnormality, and 166 (30.8 per cent) reported reasons other than occlusal abnormalities for their negative self-perception of their smile. In multivariate analysis, the following variables were associated with the outcome of interest: maxillary anterior irregularity [prevalence ratio (PR) = 1.40; 95 per cent confidence interval (CI) = 1.29-1.80], incisal spacing (PR = 1.37; 95 per cent CI = 1.19-1.57), vertical open bite (PR = 1.34; 95 per cent CI = 1.15-1.55), mandibular anterior irregularity (PR = 1.29; 95 per cent CI = 1.14-1.46), permanent anterior teeth missing (PR = 1.21; 95 per cent CI = 1.05-1.39), and incisal diastema (PR = 1.14; 95 per cent CI = 1.01-1.31). The negative self-perception of smile was statistically associated with severity of occlusal disorders according to the DAI scores, which suggests that self-perception should be used together with standard clinical criteria when decisions about orthodontic treatments are made in public health care systems.

The interceptive orthodontic treatment of patients with complex dentofacial abnormalities is frequently inefficient and produces less than ideal outcomes. Therefore, postponing therapy to a single-phase surgical-orthodontic approach might be considered a reasonable option. However, other relevant aspects of the patient's quality of life, such as possible psychosocial problems and functional impairments, should also be considered before deciding whether to intercept a severe dentofacial malocclusion while the patient is still growing, or wait and treat later. This case report describes the nonsurgical treatment of a young patient with a severe Class III open-bite malocclusion associated with a cervical cystic lymphangioma. Despite the poor interceptive therapy prognosis, a 2-phase approach was effective. A reflection about giving up efficiency in favor of effectiveness, functional rehabilitation, and the patient's quality of life is included., (Copyright © 2013 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.)

Objectives: To determine the association between types of malocclusion and quality of life in children between 8-10 years of age and establish correlations between the severity of the malocclusion and particular bio-psychosocial variables., Study Design: The sample was made up of 102 schoolchildren aged 8-10 years. Clinical exams were performed using the criteria of the Dental Aesthetic Index (DAI) to determine the presence and severity of malocclusions. The impact on quality of life was assessed using the Child Perceptions Questionnaire (CPQ8-10). Statistical analysis involved the chi-square test, Fisher's exact test and Spearman's correlation analysis., Results: Malocclusions affected 61% of the children examined. There was a positive correlation between total CPQ8-10 and DAI scores (P = 0.034). The following types of malocclusion had a significant effect on the quality of life of the children: upper anterior irregularity > or = 2 mm, anterior open bite > or = 2 mm and diastema > or = 2 mm. Children with malocclusion experienced a greater negative impact on quality of life in comparison to those without malocclusion., Conclusions: Malocclusions had a negative influence over the quality of life of children between 8-10 years of age. More severe malocclusions had a greater impact with regard to social, emotional and functional aspects.

Neuromuscular disorders lead to an imbalance in the position of the jaw. The aim of this study has been to analyse gnostic sensibility in subjects with partial anterior open bite and the incorrect position of the tongue. The study involved 20 subjects with partial anterior open bite and an incorrect tongue position. The control group consisted of 20 individuals with correct occlusion and tongue position. The basic study method was a stereognostic examination using 4 silicon shapes - a square, triangle, circle and semicircle. The accuracy of shape identification and the time that the subjects needed to identify the shapes were analysed before and after the tip of the tongue was anaesthetized. Results showed that correct identification of the shapes was 7.4% worse in the study group than in the control group and that the difference was greatest when the tip of the tongue was anaesthetized - 28.8%. The time needed to identify the shapes was shorter in the study group than in the control group. The results indicate that people with partial anterior open bite and incorrect tongue position exhibit impaired gnostic sensibility, especially at the tip of the tongue. Impaired gnostic sensibility, which is a symptom of the disturbed sensomotoric correlation of the tongue, leads to the tongue's incorrect position in the process of swallowing and speaking., (Copyright © 2011 Elsevier GmbH. All rights reserved.)

Objective: To compare perceptions of dental aesthetics of Class III and anterior open bite (AOB) malocclusions between 10- to 11-year-old Birmingham schoolchildren and orthodontists., Materials and Methods: Thirty-one orthodontists practicing in Birmingham (UK) and 383 school children aged 10-11 years from a random and representative sample of seven primary schools in South Birmingham participated in the study. Participants were asked to assess five anterior photographs of the dentition representing varying degrees of aesthetic impairment of Class III and AOB malocclusions. Perceptions of dental aesthetics were determined using the aesthetic component (AC) of the Index of Orthodontic Treatment Need (IOTN)., Results: Perceptions of dental aesthetics were similar among males and females (P > .05). Both groups allocated the highest median AC score to the photo representing severe Class III malocclusion and the lowest to the photo representing mild Class III and AOB malocclusion. Differences in perceived dental aesthetics were significant for photos representing severe Class III and moderate AOB malocclusions, with orthodontists perceiving greater aesthetic impairment for severe Class III and schoolchildren for moderate AOB, respectively (P < .05)., Conclusions: Schoolchildren and orthodontists perceived Class III malocclusions to have greater aesthetic impairment compared to AOB malocclusions. Surprisingly, none of the median AC scores allocated to the five photos were in the "Definite need" for treatment category. The IOTN may not be sensitive to these types of malocclusions. This finding merits further investigation.

Introduction: In this study, we explored how others perceive persons with normal occlusion or different malocclusions (open bite, deepbite, underbite, overjet, crowding, and spacing). The objectives were to investigate (1) how occlusion affects others' perceptions of attractiveness, intelligence, and personality, and their desire to interact in personal and professional settings, and (2) whether these assessments are affected by the target person's sex or the respondent's characteristics., Methods: Survey data were collected from 889 patients or accompanying adults (46% male, 54% female; age range, 18-90 years) who evaluated target photos that had been manipulated to display either a normal occlusion or 1 of 6 malocclusions., Results: The ratings of attractiveness, intelligence, conscientiousness, agreeableness, and extraversion differed significantly depending on the occlusion status depicted. Persons with normal occlusion were rated as most attractive, intelligent, agreeable, and extraverted, whereas persons with an underbite were rated as least attractive, intelligent, and extraverted. Female targets were rated more positively than male targets. Younger respondents and more educated respondents were more critical in their evaluations than were older and less educated respondents., Conclusions: Occlusion status affects a person's perceptions comprehensively. Subjects with normal occlusion were rated the most positively., (Copyright © 2011 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.)

Objectives: We assessed how socioeconomic and clinical conditions could affect parents' perceptions of their child's oral health., Methods: A cross-sectional study was conducted in a sample of 455 children, aged 1-5 years, representative of Santa Maria, a southern city in Brazil. Participants were randomly selected among children attending a National Day of Children's Vaccination. Clinical examinations provided information on the prevalence of caries, dental trauma, and occlusion. The caregivers' perception of children's oral health and socioeconomic status were assessed by means of a questionnaire. A Poisson regression model using robust variance (Prevalence ratio: PR; 95% CI, P ≤ 0.05) was performed to assess the association between the predictor variables and outcomes., Results: Parents were more likely to rate their child's oral health as 'poor' if the former earned a lower income and the latter had anterior open bite and dental caries. Parents of black children with anterior open bite and dental caries were more likely to rate their child's oral health as 'worse than that of other children'., Conclusions: Clinical and socioeconomic characteristics are significantly associated with parents' perceptions of their child's oral health. Understanding the caregivers' perceptions of children's oral health and the factors affecting this could be useful in the planning of public health polices, in view of the inequity in the oral health pattern., (© 2010 John Wiley & Sons A/S.)

This study was carried out to determine the level of attractiveness of anterior open bites (AOB) and reverse overjets of varying severity. A sample of 180 non-dental students (101 females and 79 males; average age 20 +/- 0.75 years) and 45 dental professionals (12 females and 33 males; average age 35.5 +/- 5.07 years) was asked to complete a questionnaire to rate the level of attractiveness of AOB and reverse overjets of varying severity using the aesthetic component (AC) of the Index of Orthodontic Treatment Need (IOTN). Photographs of mild and severe AOB and reverse overjets were projected onto a white screen in a lecture theatre (15 seconds each with a 5 second interval between images). The participants were asked to record the AC grade at which they thought the projected picture of the AOB or reverse overjets had similar attractiveness. Dental awareness of non-dental students was determined by asking them their opinion on how important it was to have straight teeth (very unimportant, unimportant, important, very important), about their personal or close family members' orthodontic experiences and if they thought they were in need of any orthodontic treatment. A chi-square test was applied to record any differences between sexes and between the different groups. Backward stepwise linear regression analysis was used to determine the relationship between the students' ratings of the photographs and their dental awareness. The majority of non-dental students rated a mild AOB (93 per cent) and mild reverse overjet (96 per cent) to be aesthetically acceptable. A mild AOB and mild reverse overjet were found to be acceptable by 40 and 58 per cent of dental professionals, respectively. The differences in the ratings between dental professionals and non-dental students were significant at P < 0.001.A severe AOB was considered unattractive by both students and dental professionals. However, dental professionals rated it at the more unattractive end of the scale (P < 0.001). A severe reverse overjet was rated by the majority of the subjects as aesthetically unacceptable (85 per cent of the non-dental students and 78 per cent of the dental professionals).

Objective: To compare the aesthetic perception of different anterior visible occlusions in different facial and dental views (frontal view, lower facial third view and dental view) by lay persons., Design: Cross-sectional survey, Lima, Peru, 2002., Subjects: The different views were rated by 91 randomly selected adult lay persons., Main Outcome Measurement: Visual Analogue Scale (VAS) ratings of aesthetic perception of the views., Results: Anterior visible occlusion, photographed subject and view (p<0.001) had a significant effect on the aesthetic ratings. Also gender (p=0.001) and the interaction between gender and level of education (p=0.046) had a significant effect over the aesthetic rating., Conclusions: A lay panel perceived that the aesthetic impact of the visible anterior occlusion was greater in a dental view compared with a full facial view. The anterior visible occlusion, photographed subject, view type are factors, which influence the aesthetic perception of smiles. In addition, gender and level of education had an influence.

The objective was to investigate the opinion of Tanzanian parents on dental attractiveness and to compare their opinion with that of their children. A prestructured questionnaire with 18 intraoral frontal photographs was given to 286 parents and their children aged 9-18 years. The photographs represented various types of occlusion traits, with the first 10 intraoral photographs representing grade 1-10 of the aesthetic component (AC) of the index of orthodontic treatment need, and the remaining eight photographs were added to represent malocclusions that are often seen in Tanzania. Basic statistical techniques were used to analyze the data. Photographs showing severe deviations were perceived by both children and parents as the most unattractive. The opinion was significantly correlated with children's age (P = .02) and sex (P < .0005), with older girls tending to dislike photographs showing severe deviations the most. The mean of the opinion for the photographs showing some spacing with overbite < or = 2 mm or open bite and overbite > 2 mm fell in the middle of the scale, with a tendency toward unattractiveness. Photographs matching 8-10 on the AC scale were perceived as the most unattractive, indicating what could be a lay person's priority when considering an orthodontic treatment policy in Tanzania.