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INTRODUCTION: Skeletal Class III malocclusion is often referred for orthodontic treatment combined with orthognathic surgery. However, with the aid of miniplates, some moderate discrepancies become feasible to be treated without surgery. OBJECTIVE: To report the case of a 24-year-old man with severe skeletal Angle Class III malocclusion with anterior crossbite and a consequent concave facial profile. METHODS: The patient refused to undergo orthognathic surgery; therefore, orthodontic camouflage treatment with the aid of miniplates placed on the mandibular arch was proposed. RESULTS: After 18 months of treatment, a Class I molar and canine relationship was achieved, while anterior crossbite was corrected by retraction of mandibular teeth. The consequent decrease in lower lip fullness and increased exposure of maxillary incisors at smiling resulted in a remarkable improvement of patient's facial profile, in addition to an esthetically pleasing smile, respectively. One year later, follow-up revealed good stability of results.

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ABSTRACT Introduction: Skeletal Class III malocclusion is often referred for orthodontic treatment combined with orthognathic surgery. However, with the aid of miniplates, some moderate discrepancies become feasible to be treated without surgery. Objective: To report the case of a 24-year-old man with severe skeletal Angle Class III malocclusion with anterior crossbite and a consequent concave facial profile. Methods: The patient refused to undergo orthognathic surgery; therefore, orthodontic camouflage treatment with the aid of miniplates placed on the mandibular arch was proposed. Results: After 18 months of treatment, a Class I molar and canine relationship was achieved, while anterior crossbite was corrected by retraction of mandibular teeth. The consequent decrease in lower lip fullness and increased exposure of maxillary incisors at smiling resulted in a remarkable improvement of patient's facial profile, in addition to an esthetically pleasing smile, respectively. One year later, follow-up revealed good stability of results.

RESUMO Introdução: a má oclusão de Classe III esquelética é frequentemente tratada com associação entre Ortodontia e Cirurgia Ortognática. No entanto, com o auxílio das miniplacas, discrepâncias moderadas tornaram-se passíveis de serem tratadas sem a necessidade de cirurgia ortognática. Objetivo: relatar o caso de um paciente de 24 anos, com má oclusão de Classe de III Angle e Classe III esquelética, mordida cruzada anterior e consequente perfil facial côncavo. Métodos: o paciente recusou-se a realizar a cirurgia ortognática, assim, foi proposta a compensação da má oclusão com o auxílio de miniplacas na arcada inferior. Resultados: após 18 meses de tratamento, foram obtidas relações de molares e caninos em Classe I, e a mordida cruzada anterior foi corrigida, por meio da distalização de todos os dentes inferiores. A consequente redução na projeção do lábio inferior, associada à maior exposição dos incisivos superiores no sorriso, resultou em um perfil facial consideravelmente mais agradável e um sorriso esteticamente melhor, respectivamente. A análise um ano após o tratamento revelou boa estabilidade dos resultados obtidos.

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In this case report, we present an unusual approach that was used to treat a 14-year-old patient with a bilateral canine-premolar transposition and a missing maxillary lateral incisor. The orthodontic treatment involved maintaining the transposition and creating a space for lateral incisor replacement. Toward the end of the treatment, accentuated buccal root torque was performed, and lateral group function was established to improve the treatment outcome. Finally, an ideal esthetic and functional occlusion was achieved. The 8-year posttreatment follow-up records show the stability of this treatment.

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The treatment of skeletal class III and anterior open bite can be unstable and orthodontists frequently observe relapse. Here, we report on the management of three patients with skeletal class III profiles and open bites treated by orthodontic camouflage. Each received a retention protocol involving the use of two separate appliances during the night and day accompanied by myofunctional therapy. Long-term follow-up revealed a stable outcome.

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O objetivo deste artigo é discutir fatores relacionados ao diagnóstico e tratamento compensatório da má oclusão de Classe III e mordida aberta esquelética em paciente adulto. Nesse contexto, será apresentado o caso clínico de um paciente portador de face longa, mordida aberta anterior de origem esquelética, mordida cruzada posterior e má oclusão de Classe III. O paciente optou pelo tratamento compensatório, usando aparelho fixo, mentoneira e aparelhos auxiliares. Houve controle da extrusão dos molares superiores e inferiores e leve extrusão dos incisivos. Houve rotação anti-horária da mandíbula e certa melhora no padrão facial. Ao término do tratamento, foi estabelecida relação de molares e de caninos em Classe I e a mordida aberta foi corrigida. Objetivando a estabilidade do tratamento, o paciente foi encaminhado para tratamento fonoaudiológico e utilizou duas contenções modificadas superiores. Três anos após o término do tratamento, observou-se a preservação dos resultados obtidos.

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The aim of this study was to illustrate how gallium arsenite aluminum diode laser (824 nm) irradiation can reduce postsurgical edema and discomfort and accelerate sutural osseous regeneration after surgically assisted rapid palatal expansion (SARPE). An adult patient with an 8-mm transverse maxillary discrepancy was treated with SARPE. Infrared laser therapy was started on the 7th postoperative day, with a total of eight sessions at intervals of 48 hours. The laser probe spot had a size of 0.2827 cm2 and was positioned in contact with the following (bilateral) points: infraorbital foramen, nasal alar, nasopalatine foramen, median palatal suture at the height of the molars, and transverse palatine suture distal to the second molars. The laser was run in continuous mode with a power of 100 mW and a fluency of 1.5 J/cm2 for 20 seconds at each point. Subsequently, an absence of edema and pain was observed. Further, fast bone regeneration in the median palatal suture could be demonstrated by occlusal radiographs. These findings suggest that laser therapy can accelerate bone regeneration of the median palatal suture in patients who have undergone SARPE.

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O uso de radiografias panorâmicas é cada vez mais aceito e rotineiro no dia a dia do cirurgião dentista. Esta também vem sendo muito usada para o planejamento cirúrgico de exodontias de terceiros molares. Porém, alguns trabalhos colocaram em discussão a fidelidade deste exame em detectar pequenas alterações anatômicas e a possibilidade de distorção de imagem do exame. Neste trabalho analisamos 27 dentes extraídos com seus respectivos exames radiográficos panorâmicos prévios à exodontia. Foi detectado que houve diferença significativa no que tange ao critério de número de raízes avaliado no exame radiográfico e no elemento extraído e também no que diz respeito à dilaceração radicular verificada neste exame e no dente.

Panoramic radiography is actually one of the most used imaginologic exams in clinical dentistry. It is also very used for surgical planning of third molars extraction. However, some papers raise some discussion about the accuracy of this exam in detecting small anatomic changes and the possibility of distortion of the image. In this paper, 27 dental elements (all upper third molars) that were extracted were analyzed, and comparison between the real aspect of the root morphology of the teeth that were extracted and the number of roots with the respective image on the panoramic radiography were performed. Significant differences were detected between these two observations in the number of roots and root dilaceration.

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Foram selecionados 20 indivíduos portadores de escoliose idiopática, com curvaturas iguais ou superiores a 10° Cobb, identificados após avaliação postural e radiológica no Serviço Ambulatorial do Hospital Universitário de Santa Maria. Posteriormente, realizou-se exame clínico odontológico de cada indivíduo, a fim de serem detectadas as alterações dentofaciais. Os resultados demonstraram que 95% dos indivíduos analisados apresentaram evidente assimetria facial, constatada por meio da inclinação da base da mandíbula, linha das órbitas e linha da boca e nariz. Constatou-se também alta incidência de maloclusão dentária, alguns desvios de linha média e de plano oclusal inclinado. Os dados obtidos até o presente momento sugerem a hipótese de que a escoliose idiopática representa um fator importante no desenvolvimento das anomalias dentofaciais.

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The purpose of this research is to find out the activity level and function of the mentalis and orbicularis oris (superior and inferior) in individuals with Angle's Class II division 1 malocclusion. Ten individuals with Angle's Class II division malocclusion were analysed and the findings compared to those obtained from eight individuals with clinically normal occlusion. The electromyographic analysis was performed in the Research Laboratory of Electromyography - Department of Morphology, Federal University of Santa Maria, using a device composed by an amplifier for electromyography a digital-analogic conversion board - CAD 10/26 type and a specific software developed by Lynk Electronic Technology in order to acquire data formathematical processing. Apparatus calibrations was 1000 mV, samples frequency channel 4000 Hz and speed of bundle dislocation was 15 ms/division. Recordings were obtained using Beckman's surface electrodes attached to chin, upper and lower lips during rest and speech movements. The signals recorded were quantified in root mean square (RMS) expressed in microvolts. The results obtained showed that individuals with Angle's Class II division 1 malocclusion undergo alterations in normal patterns of muscular activation . It was found an increase in the postural activity of the inferior orbicularis in individuals with Angle's Class II division 1 malocclusion. During the speech, individuals with Angle's Class II division 1 malocclusion were more active than normal ones.

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