Alterações dimensionais da maxila em pacientes com atresia do arco dentário superior tratados com aparelho expansor

Pós-graduação em Ciências Odontológicas - FOAR

Estudos das caracteristicas cefalométricas do padrão face longa

Pós-graduação em Odontologia - FOA

A discrepância de tamanho dentário, de Bolton, na oclusão normal e nos diferentes tipos de más oclusões, de Angle, bem como sua relação com a forma de arco e o posicionamento dentário

Pós-graduação em Odontologia - FOAR

Efeitos de diferentes sistemas de clareamento dental sobre a rugosidade e morfologia superficial do esmalte e de uma resina composta restauradora

The aim of this study was to evaluate and compare the roughness and superficial morphology of enamel and a composite restorative resin after different bleaching techniques application. Material and Methods: Bovine incisors were selected and standardized cavities were prepared on the buccal surface, which were restored with composite resin. The teeth were distributed according to the following treatments: G1- bleaching with 10% carbamide peroxide (CP); G2 - bleaching with 38% hydrogen peroxide (HP); and G3 - bleaching with 38% of HP associated to light irradiation. For G1, the bleaching gel was applied for 8 hours daily during 21 days. For G2 and G3, 3 sessions were performed, consisting of 3 applications of 15 minutes each, with 7 days of intervals between the sessions. For G3, the LED (470nm) light was used to activate the bleaching agent for 6 minutes. The surface of enamel and composite resin were evaluated before and after the bleaching procedures using a roughness tester and an atomic force microscope. Results: The results showed significant differences in surface roughness of enamel after bleaching only for G1 (Wilcoxon, p<0.05). For composite resin, neither group showed a statistical difference compared to control (Mann-Whitney, p>0.05). Conclusion: It was concluded that the increase in the roughness of enamel occurred only after bleaching therapy using a gel with 10% of CP. The bleaching procedures evaluated in this investigation did not increase the roughness or cause changes in the superficial morphology of the composite resin.

Exatidão, precisão e reprodutibilidade de medidas dentárias em modelos de gessso e imagem tridimensional

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Morfologia, morfometria do arco aórtico e perfil lipídico sérico de ratos tratados com surfactante

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação dos efeitos causados por diferentes sistemas de clareamento dental sobre a estrutura superficial do esmalte e resina composta restauradora

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Resistência à cárie de esmalte dental irradiado por lasers de Er:YAG e Nd:YAG, avaliada através da morfologia e proporção Ca/P

Pós-graduação em Ciências Odontológicas - FOAR

Alterações tridimensionais dos arcos dentários de pacientes submetidos à cirurgia ortognática

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Morfologia e morfometria do arco aórtico de colehos com ateroma induzido e tratados com resveratol, como modelo experimental na prevenção da aterosclerose: perfil lipídico sérico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da movimentação dentária fisiológica durante o tratamento da Classe I de Angle após a extração de pré-molares

Pós-graduação em Odontologia - FOA

Cephalometric evaluation of the predictability of bimaxillary surgical-orthodontic treatment outcomes in long face pattern patients: a retrospective study

OBJECTIVE: The aim of this study was to compare by means of McNamara as well as Legan and Burstone's cephalometric analyses, both manual and digitized (by Dentofacial Planner Plus and Dolphin Image software) prediction tracings to post-surgical results. METHODS: Pre and post-surgical teleradiographs (6 months) of 25 long face patients subjected to combined orthognathic surgery were selected. Manual and computerized prediction tracings of each patient were performed and cephalometrically compared to post-surgical outcomes. This protocol was repeated in order to evaluate the method error and statistical evaluation was conducted by means of analysis of variance and Tukey's test. RESULTS: A higher frequency of cephalometric variables, which were not statistically different from the actual post-surgical results for the manual method, was observed. It was followed by DFPlus and Dolphin software; in which similar cephalometric values for most variables were observed. CONCLUSION: It was concluded that the manual method seemed more reliable, although the predictability of the evaluated methods (computerized and manual) proved to be reasonably satisfactory and similar.

Estudo da correlação linear entre a dimensão da largura maxilar e as dimensões das larguras de outras grandezas, lineares, transversas da face, em portadores de fissura transforame incisivo unilateral, através da cefalometria radiográfica, em norma frontal

This research presents the results of a cephalometric radiography study, in frontal norm, that was used to measure the possible linear correlations between several linear dimensions of the face, in a sample of a 140 caucasian brazilians, with an average age of 20 years, who were distributed in 2 groups as follows: Control group - formed of 35 males and 35 females, with no apparent facial deformities and with dental oclusion, not necessarily, in Angle's Class I; Unilateral cleft lip and palate group - formed of 35 males and 35 females with surgical correction of the up in the first year and of the palate until the third year of life, without orthodontic treatment. ln each teleradiography, the following parameters were measured using a computer: - Lateral orbit width or external orbit width (LOe) - Medial orbit width or internal orbit width (LOI) - Zygomatic width or facial width (LZI) - Mastold width (LMa) - Maxilar width (LMx) - Nasal width (LNa) - Condilar width (LCo) - Antigonial width (LGa) The values obtained were treated statistically using quantitative analysis (arithmetic mean, standard deviation, standard mean error, Person's variation factor and Pearson factor linear correlation). Theirs significance was established by Student's t test. The Pearson factor linear correlations determined between transverse linear cephalometric width dimensions of face in frontal norm for individuals of both groups and sex, with an average age of 20 years, were: ...

Diagnóstico e tratamento precoce da Classe III: relato de um caso clínico

In malocclusion studies, may happen not only dental discrepancies but even skeletal discrepancies. In Class III malocclusion can be observed underdeveloped maxilla, mandible protraction or both of them, and, in most of the times associated with a narrow maxilla that causes anterior or posterior crossbites, in one side or in two sides. The aim of this case report is to evaluate the facial profile and occlusal effects of interceptive orthodontics therapy. The treatment with upper arch expansion and maxilla protraction was done in an early age to be effective in the circummaxillary sutural system and to make the orthopedic effect easier. The facial mask used is positioned on two facial points and allows an anterior maxillary replacement. Patients’ compliance is important to reach treatment success, this because using the mask still in this growth and development phase is essential to make the facial and occlusal effects happen. It is important to mention that patients with Angle Class III malocclusion need to be followed till the end of their growth.

Avaliação das dimensões e relacionamento dos arcos dentários após tratamento com Bionator de Balters

The deficiency of data in the literature took us to evaluate the Bionator of Balters appliance in the alterations of the dimensions and the relationship of the dental archs in children with malocclusion Class II, division 1 of Angle. The experimental group was constituted by 36 pairs cast Caucasians patients, aged between 7 years and 10 months - 11 years and 8 months, being 10 females and 8 males. The Levene´s test showed statistical evidences of likeness among the groups. Statistical analysis was preceded and showed significant alterations (p < 0,005) in the variable indicatives of maxillary first molars' distance, overjet, upper arch total length, upper arch anterior length, right molar relationship, left molar relationship, right canine relationship and left canine relationship. On the other hand, there wasn't significant alteration related to the lower arch and maxillary intercanines distance. The Balters' Bionator appliance had a favorable effect in the improvement of the correction of the malocclusion in Class II (foremost in molars and canines relationship) and transversal increase of the upper arch, mainly in the posterior area of arch.