European College of Orthodontics: Commission of affiliation and titularisation.

Date of birth: 12/01/1992; sex: male. A. PRETREATMENT RECORDS: 25/05/2005; 13 years 4 months. DIAGNOSIS: Angle Class I; Teeth missing prior to treatment: third molars. TREATMENT PLAN: Appliances and devices: Hyrax appliance, multibracket straight-wire appliances, 0.022×0.028″, Roth technique; start of treatment: 13 years 6 months; 06/07/2005. B. POSTTREATMENT RECORDS: 06/12/2007; 15 years 11 months. DURATION OF ACTIVE TREATMENT: 2 years 5 months. RETENTION: Hawley maxillary retainer;12/12/08; bonded lingual mandibular wire from 33 to 43; 12/12/08. C. POSTRETENTION RECORDS: (1 year minimum): Duration of retention: Maxilla: 1 year; mandible: permanent.

Diagnostic model of anterior open bite--a new way to predict skeletal type: a cross-sectional study.

INTRODUCTION: The aim of this study was to determine a differential diagnostic model for anterior open bite (AOB) in children in order to predict evolution with growth in cases of skeletal or dysfunctional dysplasia. MATERIAL AND METHODS: The sample was composed of 128 subjects divided into 2 groups according to overbite values: a control group with normal occlusion and 2.5 ± 1mm overbite, and an AOB group with a negative overbite. Measurements of hyoid bone position, gonial angle, SN/Go-Gn, FMA, height of alveolar processes, upper lip height, height of the anterior nasal spine to stomion superior, upper incisor and menton, antegonial notch, symphysis anatomy, condyle anatomy, convexity, facial axis, lower oropharyngeal area and curve of Spee were obtained for all subjects, based on lateral cephalometric radiographs and lateral photos. All data were analyzed, and multivariate logistic regression was applied. The area under the receiver operating characteristic (ROC) curve was calculated for the models obtained by logistic regression, in order to evaluate them. Statistical analysis was performed in IBM(®) SPSS(®) Statistics version 21.0. RESULTS: The results demonstrated that the AOB model was capable of predicting skeletal anterior open bite with an accuracy of 93%. The seven variables selected were: lower face height (LFH), height of mandibular alveolar process, antegonial notch, symphysis direction, symphysis thickness, gonial angle and facial axis. CONCLUSIONS: Measurements of facial morphology made it possible to construct a model able to differentiate, with a small margin of error, between the two distinct forms of AOB: skeletal and dysfunctional.

The prevalence of anterior open bite in Portuguese children during deciduous and mixed dentition--correlations for a prevention strategy.

INTRODUCTION: Anterior open bite (AOB) is a vertical malocclusion that requires thorough diagnosis to ensure long-term stability. The aim of this study was to determine the prevalence of AOB in Portuguese children during deciduous and mixed dentition in order to assess the need for orthodontic treatment and to determine its relation to other associated features. MATERIAL AND METHODS: A group of 1264 children aged between 3 and 12 from Porto in Portugal were observed. The statistical methodology included the independent Chi(2) test, Fisher's exact test and binary logistic regression. RESULTS: The prevalence of AOB was 16.9% with 95% CI (11.9%, 24.5%) for primary dentition and 11.3% with 95% CI (8.4%, 15.1%) for mixed dentition. Pacifier sucking, thumb sucking, tongue thrust and oral breathing are major risk factors for AOB in primary dentition, ranked in descending order. In mixed dentition, the factors are ranked as follows: pacifier sucking, lip sucking, tongue thrust and oral breathing. CONCLUSION: Due to the close connection between the prevalence of AOB and dysfunctional problems, prevention strategies should be integrated into a national public health program. The habits mentioned above should be eliminated early by using the appropriate protocols in order to reduce the risk factors of malocclusion.

Relationships between teeth and adjacent structures: how to achieve more esthetic results.

Nowadays, the demand for esthetic dental treatment is fundamental and is conditioned by gender, age and level of education. The color and appearance of teeth and crowding in the anterior segment feature among the main factors governing the choice of treatment. The aim of this article is to check six basic parameters needed to obtain an esthetic result.

Disostose cleidocraniana - relato de um caso clínico com abordagem multidisciplinar / Cleidocranial dysostosis - case report of a multidisciplinary approach

A disostose cleidocraniana é uma síndrome genética rara, autossómica dominante. Neste caso particular, os muitos desafios dos tratamentos foram resolvidos por uma equipe odontológica, cujo traccionamento ortodôntico de dentes inclusos associados com a cirurgia ortognática bimaxilar foi o principal foco. O objectivo deste tratamento ortodôntico-cirúrgico foi restaurar a oclusão funcional e melhorar a estética facial, aproveitando a vantagem de todos os dentes impactados que caracterizam esta síndrome.

Cleidocranial dysostosis (CCD) is a rare genetic syndrome, autosomal dominant. In this paper a patient with cleidocranial dysostosis was treated under a multidisciplinary basis. Many treatment challenges were solved by a dental team, in which the orthodontic traction of unerupted teeth associated with bimaxilar surgery had the main focus. The aim of this surgical-orthodontic treatment was to restore the functional occlusion and to improve the facial aesthetics, taking advantage of all the impacted teeth which characterize this syndrome.