Dentes tratados endodonticamente que possuem grande perda de estrutura coronária necessitam de ancoragem intrarradicular para que posteriormente seja restabelecida forma e função. Dentre os retentores intrarradiculares, o pino de fibra de vidro tem se destacado por ser um material biocompatível que apresenta módulo de elasticidade semelhante a dentina e constitui um material estético que exige menor tempo clínico e de fácil aplicação. Os pinos de fibra de vidro apresentam uma alternativa clínica aos núcleos metálicos fundidos por representarem uma opção de pinos intrarradiculares com características mecânicas ideais ao remanescente dentário, além de permitir estética superior. Sendo assim, este trabalho propõe uma revisão de literatura sobre as características inerentes a este tipo de pino e sua aplicabilidade clínica.
Insulin-like growth factor II mRNA-binding protein 3 (IMP3) is strongly expressed in malignant tumors and has been associated with their aggressive behavior. The aim of this study was to evaluate the presence of IMP3 in a series of salivary gland tumors. The sample consisted of 9 pleomorphic adenomas (PA), 14 adenoid cystic carcinomas (ACC), and 13 mucoepidermoid carcinomas (MEC) that were investigated by immunohistochemical technique. All cases of PA and MEC were positive for IMP3 particularly in the cytoplasm. PA showed 4 cases as high expression and 6 as low expression. MEC showed 10 cases as low expression and 3 as high expression. For ACC, 4 cases were high expression, whereas 6 cases were low expression. No significant difference was observed between tumors (P>0.05, Fisher's test) when both scores of IMP3 were compared. This study showed that MEC seems to be more sensitive to IMP3 than ACC and provided an insight into this protein in salivary gland tumors. Furthermore, although IMP3 is not a specific diagnostic marker to distinguish the tumors studied, it seems to mediate cell adhesion and migration in these tumors. Further studies should be performed to better understand the IMP3 biology in salivary gland tumors.
Resumo: A paciente grávida apresenta situações especiais de tratamento odontológico. O Cirurgião-Dentista não só é responsável pelo atendimento eficaz e seguro à paciente, mas também deve preocupar-se com a segurança do embrião, de modo que o profissional e paciente se sintam tranquilos com qualquer tratamento proposto. Com base nas possíveis evidências abordadas neste estudo, o trabalho objetiva abordar, por meio de revisão da literatura, a importância do atendimento odontológico para gestantes frente às alterações e cuidados inerentes a esse período. Trata-se de uma revisão bibliográfica baseada na literatura especializada através de consultas a artigos científicos selecionados utilizando os bancos de dados online do Scielo e da Pubmed dos últimos 17 anos. Alterações fisiológicas com repercussões bucais são comumente observadas no período gestacional. O acompanhamento odontológico as gestantes, se faz de extrema importância, já que doenças bucais podem estar diretamente ligadas às complicações para a mãe e o feto.
Purpose: To investigate whether there is a relationship between the volume of the maxillary sinus and individual parameters such as sex, side, posterior tooth absence, sinus membrane thickening, bony septa, and vertical and sagittal skeletal patterns.Methods: The tomographic volume of the maxillary sinus from 211 individuals (422 sides) was evaluated using Horos DICOM Viewer software. Bone septa and sinus membrane thickening were classi ed as absent or present, while maxillary posterior dental absence was de ned as the absence of one or more teeth in the posterior region of the maxilla (except for the third molars). The test-test was applied to analyze maxillary sinus volume according to sex, age, side, posterior tooth absence, sinus membrane thickening, and bony septa. For comparison of sagittal and vertical patterns, a one-way analysis of variance (ANOVA) with Tukey's post-hoc test was applied.Results: No statistically signi cant differences were observed between the maxillary sinus volume according to gender (p=0.06), side (p=0.37), posterior tooth absence (p=0.92), sinus membrane thickening (p=0.47), bony septa (0.89) and vertical skeletal pattern (p=0.67). In relation to the sagittal skeletal pattern, a statistically signi cant difference was observed between Classes II and III (p=0.05).Conclusion: Maxillary sinus volume was in uenced only by the sagittal skeletal pattern and was higher in Class III individuals.
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