Achados Imaginológicos que Indicam Proximidade das Raízes de Terceiros Molares Inferiores com o Canal Mandibular: Revisão de Literatura

Autores

  • Karolina Braga Costa Graduanda em Odontologia da Faculdade de Odontologia da Universidade Federal de Mato Grosso do Sul (Faodo-UFMS) e membro da Liga Acadêmica de Cirurgia e Traumatologia Bucomaxilofacial (LACTBMF) da Faodo-UFMS
  • Yuri Nejaim Docente da Graduação em Odontologia da Faodo-UFMS, Radiologia Oral
  • Ellen Cristina Gaetti Jardim Docente da Graduação em Odontologia da Faodo-UFMS, Preceptora da Residência em Cirurgia e Traumatologia Bucomaxilofacial da Faodo-UFMS e da LACTBMF. https://orcid.org/0000-0003-2471-465X

DOI:

https://doi.org/10.21270/archi.v11i1.5456

Palavras-chave:

Radiografia panorâmica, Tomografia Computadorizada de Feixe Cônico, Terceiro Molar, Nervo Mandibular

Resumo

A radiografia panorâmica (RP) é o exame de imagem mais utilizado para avaliar a relação entre as raízes do terceiro molar inferior (TMI) com o canal mandibular (CM), no entanto a tomografia computadorizada de feixe cônico (TCFC) também pode ser indicada com a mesma finalidade, tendo a vantagem de permitir uma análise tridimensional da região. O objetivo deste estudo foi realizar um levantamento bibliográfico sobre os sinais radiográficos que indicam relação de proximidade entre a raiz dentária do TMI com o CM na RP e TCFC. Buscas foram feitas no PubMed, Medline e Lilacs empregando os seguintes descritores: Radiography Panoramic, Mandibular Nerve, Molar Third, Cone-Beam Computed Tomography. Foi realizada a leitura completa dos textos compatíveis com os objetivos, excluindo àqueles em que o CM não apresentava íntimo contato com as raízes do TMI nos exames de imagens, relatos de casos clínicos e artigos que utilizaram radiográficas periapicais para observar tal relação. Os sinais radiográficos mais relevantes para avaliar a relação raiz/canal mandibular foram: interrupção da linha branca do canal, escurecimento da raiz, desvio/estreitamento do canal, bem como sinais tomográficos incluindo ausência de corticalização, posição lingual do nervo e formato anatômico do canal (lágrima e haltere), como preditores de maior risco para lesão nervosa. Conclui-se que o exame de eleição para avaliar a proximidade do TMI com o CM continua sendo a RP, tendo em vista que ela apresenta sinais confiáveis, menor dose de radiação e custo se comparado à TCFC. 

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Publicado

2021-07-16

Como Citar

Braga Costa, K., Nejaim, Y., & Gaetti Jardim, E. C. (2021). Achados Imaginológicos que Indicam Proximidade das Raízes de Terceiros Molares Inferiores com o Canal Mandibular: Revisão de Literatura. ARCHIVES OF HEALTH INVESTIGATION, 11(1), 74–81. https://doi.org/10.21270/archi.v11i1.5456

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