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O forame mentual é uma importante estrutura anatômica que se apresenta geralmente por uma abertura única, bilateralmente na região vestibular do corpo da mandíbula, situado adjacente ao ápice dos pre-molares inferiores. Variações anatômicas podem ocorrer, como a presença de forames mentuais acessórios, que devem ser cuidadosamente avaliados no planejamento pré-operatório na região, afim de evitar danos aos feixes neurovasculares que emergem dos forames. O presente relato descreve a presença de forames mentuais acessórios bilateralmente na mandíbula, detectados através de tomografia computadorizada de feixe cônico prévio a cirurgia de colocação de implantes dentários. Dentro desse contexto, a avaliação tomográfica se faz mandatória, no intuito de ausência de danos ao feixe vásculo-nervoso e ocorrência de parestesias pós-operatórias.

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Objective: Development and validation (using open source software) of a method for volumetric and linear assessment of the nasopalatine channel (NPC) using cone beam computed tomography (CBCT). Materials and methods: This was an observational, cross-sectional study of 276 CBCTs. Acquisition was performed on a Prexion 3D computerized tomography scanner (manufacturer), using voxels of 0.08 mm and 0.14 mm, (with FOV at 5 and 12 cm). The images were compiled and divided in accordance with gender and the dental condition of the maxilla. Evaluation took place on a MacBook Pro computer using the Horos Project program (Version 3.3.5). Linear measurements and NPC volumetric evaluations were performed after correcting the orientation axes (sagittal and axial). The length and ROI volume tools were used. Results: The average age for men was 60.15 ± 11.94, for women it was 59.95 ± 10.63. Respectively, for men and women, the average NPC volume values ​​ were: 68.59 mm3 and 59.37 mm3 (p = 0.032), for length they were 10.08 mm and 8.84 mm (p = 0.000). Of the dentate participants, the NPC averages for volume for men and women were: 71.01 mm3 and 57.18 mm3 (p = 0.007), for length they were 10.26 mm and 9.14 mm (p = 0.001). In the edentulous, the average NPC lengths were 9.79 mm (men) and 8.37 mm (women) (p = 0.005). Conclusion: For linear and volumetric nasopalatine channel assessment, the post-processing method used in the Horos software was considered precise and easy-to-use.

Objetivo: O presente artigo tem como objetivo apresentar um relato de caso de paciente portadora de Artrite Idiopática Juvenil (AIJ), com sequelas orofaciais e comprometimento da articulação temporomandibular (ATM). Relato de caso: Paciente HMM, 26 anos de idade, sexo feminino, leucoderma, compareceu ao serviço de Clínica de Oclusão, Disfunção Temporomandibular e Dor Orofacial da UFPB com queixa de dor facial e limitação de abertura bucal. Relatou ser portadora de AIJ, abertura bucal limitada há mais de 2 meses, histórico de sons articulares no passado, em uso de relaxante muscular e histórico de uso intenso de AINES Cox-2 seletivo. O exame extrabucal revelou limitação de abertura (22 mm), com deflexão para o lado direito, sem sintomatologia para palpação muscular e auscultação das ATMs, porém com sensibilidade lateral no lado direito durante palpação da ATM. Verificou-se alteração da oclusão em posição de máxima intercuspidação habitual, com instabilidade oclusal leve. Paciente realizou tomografia da ATM e exames sorológicos e, após avaliação clínica e laboratorial, o diagnóstico sugestivo foi de AIJ com comprometimento da ATM direita e possível deslocamento do disco articular sem redução na mesma ATM. O tratamento consistiu em aconselhamento, associado a Placa Oclusal, fisioterapia de compressas e alongamento e acompanhamento reumatológico. Após 6 meses, houve melhoria significativa na abertura bucal (22 mm para 33 mm), com controle moderado das dores. Conclusão: A avaliação dos pacientes deve englobar uma visão abrangente e sistêmica, com diagnóstico e tratamento realizados de maneira multidisciplinar, possibilitando a qualidade de vida.

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Objective: The aim of this study was to evaluate the relationship among the following features: hyposalivation, systemic diseases and drug use, oral symptoms, dental condition, salivary flow and salivary pH, as well. Methods: A cross-sectional study was performed with 50 participants diagnosed with xerostomia, randomly selected and distributed in two groups: 25 with hyposalivation and 25 without hyposalivation, paired in age and sex. Unstimulated Salivary Flow Rate (USFR), Decayed, Missing, Filled, Teeth (DMFT) index and salivary pH were determined. The Mann-Whitney test and chi-square test were applied, considering significant for p-values <0.05. Results: Among the participants with hyposalivation, 88% used drugs and 96% presented systemic disease. And among those without hyposalivation, 48% used drugs and 64% presented systemic disease. The ones with hyposalivation showed the highest levels of dysgeusia (60%) and burn mouth (36%). There were statistically significant differences for the medians of USFR (0.08ml/minute / 0.2ml/minute) (p = 0.000), pH (6/7) (p = 0.000) and DMFT (22/17) (p = 0.004) obtained from participants with hyposalivation and without hyposalivation, respectively. Only in the group with hyposalivation there was a statistically significant association of unstimulated salivary flow rate with age (p = 0.035), type of systemic disease (p = 0.049) and pH (p=0.032) and DMFT demonstrated an association with systemic diseases (p = 0.015). Conclusion: The research results have suggested that hyposalivation worsens dental status triggering oral symptoms, and that salivary flow is influenced by the type of systemic disease and age group.