Palavras-chave
Tomografia Computadorizada de Feixe Cônico
Terapia Endodôntica
Como Citar
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Resumo
Objetivo: Avaliar a acurácia da tomografia computadorizada de feixe cônico (TCFC) na detecção do segundo canal mesiobucal (MB2) em primeiros molares superiores. Métodos: Foi realizada uma revisão sistemática de acordo com o PRISMA 2020 e registrada no PROSPERO (CRD420251067699). As buscas foram realizadas no MEDLINE (via PubMed), BVS, LILACS, Cochrane Library e Google Scholar para estudos publicados entre 2013 e 2025. Os estudos elegíveis incluíram ensaios clínicos, estudos observacionais, revisões sistemáticas e meta-análises que avaliaram a TCFC para a detecção do MB2 em primeiros molares superiores. Os critérios de exclusão foram relatos de caso, estudos com animais e modelos experimentais. A extração de dados abrangeu o desenho do estudo, as características da população, os protocolos de imagem e a prevalência do MB2. A certeza da evidência foi avaliada com a abordagem GRADE. Resultados: De 2.502 registros, sete estudos atenderam aos critérios de inclusão. A tomografia computadorizada de feixe cônico (CBCT) demonstrou maior precisão diagnóstica do que as radiografias convencionais, com prevalência de MB2 variando de 69,6% a 92%. Não foram encontradas diferenças significativas entre os molares superiores direito e esquerdo. Os achados referentes a sexo e idade foram inconsistentes, enquanto etnia, classificação de Vertucci e distância interorifícios foram relatados como fatores de influência. A certeza da evidência variou de moderada a alta. Considerações finais: A CBCT é uma ferramenta confiável e precisa para detectar canais MB2 em primeiros molares superiores, aprimorando a capacidade diagnóstica, o planejamento do tratamento e os resultados endodônticos.
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