Non-syndromic dental agenesis is characterized as the most common developmental anomaly in humans, causing the lack of one or more teeth, in deciduous or permanent dentition. Mutations in specific genes of dental development are pointed as etiological factors of this anomaly. To perform this work, two electronic databases were consulted to conduct a literature survey, including PubMed and BVS. The descriptor "Anodontia" was used in both. The articles were filtered from 2010 to 2020, including full texts, in english, portuguese and spanish. Dissertations, theses and book chapters were discarded. In PubMed, from 508 articles found, 13 were included for review. In the BVS, from 304 articles found, 07 were included for review, totaling 20 articles. Studies have shown that mutations by nucleotide subitusing and deletion were more present in genes that cause dental agenesis (PAX9, MSX1, AXIN2, WNT). In epidemiologic studies, women showed greater involvement than men, both in deciduous and permanent dentition, in a ratio of 3:2. In addition, leukoderms showed greater involvement than melanoderms. Knowledge of the genotype-phenotype correlation between mutations and dental agenesis is important for the dental surgeon, as it assists in diagnosis, genetic counseling, treatment and prognosis.

Clinical and radiographic diagnosis of Nasopalatine Duct cyst treated by total enucleation -Case reportDiagnóstico clínico e radiográfico de cisto do Ducto Nasopalatino tratado por enucleação total -Relato de caso

Os sialolitos são estruturas calcificadas que se desenvolvem dentro dos ductos salivares. A hipótese mais aceita é da deposição de sais de cálcio ao redor de um foco de detritos na luz do ducto. A sialolitíase não tem predileção por raça e é mais comum em adultos de meia idade do sexo masculino, sendo a glândula submandibular a mais acometida. O diagnóstico é realizado por meio de exame clínico e de imagem; já o tratamento depende do tamanho e da localização do sialolito, podendo variar de estimulação salivar até sua remoção cirúrgica, com ou sem a glândula envolvida. Sendo assim, alguns relatos na literatura reportam a importância do reparo ductal, evitando complicações como fístula, estenose e fibrose. Desse modo, o presente relato apresenta um caso clínico bem-sucedido da excisão cirúrgica por acesso intrabucal de sialolito no ducto de Wharton, utilizando um cateter em PVC, que foi instalado e suturado à mucosa. Essa conduta resultou na comunicação da luz do ducto com o meio externo, mantendo sua continuidade, evitando seu colabamento e, consequentemente, promovendo a formação de um novo óstio ductal. Conclui-se que a presente técnica, trouxe um pós-operatório confortável, com remissão de sintomatologia e restauração da função glandular.

Comminuted jaw fractures represent a challenge in terms of treatment. The advancement of fixation techniques and materials has contributed to the surgeon providing faster treatment and less complication. Even so, cases that present severe mandibular fragmentation require additional therapies, such as the use of bone grafts and dental implants, in order to recover function, aesthetics and anatomy of the mandible. This work aims to report a case of comminuted mandibular body fracture, which was treated with reconstruction, initially by rigid internal fixation, and secondly, by iliac bone graft and implant-supported oral rehabilitation. Although studies in the literature demonstrate that autogenous grafts show significant resorption, they are still considered the gold standard, and allow an ideal basis for obtaining osseointegration of dental implants. Thus, we concluded that the use of the autogenous bone graft coming from the iliac crest and rehabilitation with implants can be a satisfactory option for functional and aesthetic repair of patients who presented high impact fractures, and developed significant bone defects.