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Background: Esthetic complications of dental implants in the esthetic zone can have a major negative impact on patients' quality of life and perception of implant therapy. The aim of the present study was to evaluate the prevalence of peri-implant soft tissue dehiscence (PSTD) and the clinical and ultrasonographic risk indicators for this condition.Methods: Subjects with ≥1 healthy single dental implants in the esthetic area were identified and recruited. Clinical and ultrasonographic measurements, including PSTD class and subclass, probing depth, keratinized mucosa width (KMW), mucosal thickness (MT) at 1 mm and 3 mm, buccal bone distance (BBD) and buccal bone thickness, were evaluated in healthy implants and implants with PSTD.Results: A total of 153 subjects with a total of 176 dental implants were included. The prevalence of PSTD was 54.2% and 56.8% on a patient and implant level, respectively. The most frequent type of PSTD was the one characterized by having both an implant-supported crown longer than the clinical crown of the homologous tooth and a visible abutment/implant fixture exposed to the oral cavity. The multivariate analysis showed that the presence of an adjacent implant, a longer time of the implant in function, limited MT, reduced KMW, and increased BBD were significantly associated with the presence of PSTD.Conclusions: PSTDs are common findings in the esthetic region. Several risk indicators for this condition, such as presence of an adjacent implant, increased time in function of the implant, higher BBD, lower KMW, and MT were identified. [ABSTRACT FROM AUTHOR]

Objectives. Introduction of dental implant therapy has completely revolutionized the treatment for partially and completely edentulous patients. The aim of the current study was to assess the patient's knowledge regarding improvement in function and appearance and expectations with dental implant therapy. Methods. The required information was collected via a self-designed questionnaire. A total of 106 patients (response rate 70.66%) participated in the study. The subjects answered the questionnaire prior to dental implant therapy at universitybased dental hospital. Results. Almost equal number of males (48.1%) and females (51.9%) participated. The patients either self-contacted (53%) for the implants or were referred by their dentists (42%). 55% of participants were in need of > 1 implant. Two thirds of the participants got their first information about implants from dentists and for majority (68.9%) the feedback was positive. Dentists (85.8%) were the main source of information.75.5% of the patients regularly visited dentists and their experiences were pleasant. Satisfactory chewing (37.7%) followed by longevity (27.4%) and improvement in esthetics (26.4%) were the main reasons for seeking implants, while cost was not an issue for majority (53.8%). The responses about the time for completion of the treatment ranged from 1-day to 1-year. However, most of them (38.7%) believed that treatment will be completed within 6-months. For 41.5% of the participants the implants would last for 10 to 20 years while a third (33%) believed it will last for the rest of their life. Conclusions. Participants had moderate awareness about dental implants. Chewing/function and appearance/esthetics were found to be the primary reasons for seeking dental implant therapy. Expectations of the patients from the dental implant therapy were high. [ABSTRACT FROM AUTHOR]

Parkinson's Disease (PD) is one of the most frequent neurodegenerative diseases, second only to Alzheimer's disease. It is a progressive disease that inevitably leads the patient to death, in most cases for pneumonia ab ingestis. It affects 120 people out of 100,000 and more frequently affects men than women. The main symptoms are divided into motor, nonmotor and behavioral ones. The main motors symptoms are tremor, bradykinesia and postural instability. Non-motor symptoms include autonomic nervous dysfunction (orthostatic hypotension, cardiac arrhythmia, sexual dysfunction, excessive sweating due to hypothalamic dysfunction, constipation), insomnia, OSAS, and olfactory dysfunction. Behavioral symptoms are depression, dementia and psychosis. The purpose of this study is to evaluate, through a systematic review of literature, the oral health status of the Parkinson's patient compared with the general population with particular reference to the incidence of caries and periodontal disease, the patient's management during dental interventions and the possibility of rehabilitating the patient with implanted therapy. [ABSTRACT FROM AUTHOR]

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Abstract: The aim of the study was to evaluate the histological response and dimensional ridge alterations following application of a nanocrystalline hydroxyapatite paste (NHA) into fresh extraction sockets in dogs. Immediately following vertical tooth separation and extraction, NHA was inserted in the extraction socket of the second molar in the lower jaws of 10 dogs. Untreated extraction sites on the opposite side served as controls. Wounds were closed using resorbable sutures after vertical flap elevation. After three and six months, 5 animals were killed. Lingual and buccal bone height, alveolar wall and total bone width 1, 3 and 5mm underneath the top of the crest were evaluated. Histological analysis revealed a high variability of NHA resorption and osteoconductive properties with different rates of material resorption. No statistically significant differences could be observed between the corresponding aspects of test and control sites. Both groups revealed higher alveolar wall resorption on the buccal than on the lingual side at both time periods. NHA does not seem to be useful for socket preservation procedures since it failed to prevent dimensional ridge alterations while revealing osseous integration but unpredictable material resorption. The role of non-resorbed hydroxyapatite remnants for implant placement is unclear and requires further investigation. [Copyright &y& Elsevier]