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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/16443

Title: Risk assessment of inferior alveolar neurovascular bundle by multidetector computed tomography in extractions of third molars
Other Titles: Surgical and Radiologic Anatomy
Authors: Neves, Frederico Sampaio
Almeida, Solange Maria de
Bóscolo, Frab Norberto
Rebello, Iêda Margarida Crusoé Rocha
Haiter Neto, Francisco
Alves, Marcelo Corrêa
Campos, Paulo Sérgio Flores
Keywords: Mandibular canal;Third molar;Computed tomography;Inferior alveolar nerve
Issue Date: 2012
Abstract: Purpose This study aimed to assess the reliability of multidetector computed tomography (MDCT) in determining the surgical risk of the inferior alveolar neurovascular bundle in extractions of third molars. Methods The sample comprised thirty-three individuals (63 third molars) who underwent preoperative evaluation by MDCT before extraction of impacted mandibular third molars. MDCT was used to determine the relationship between the roots of the third molars and the mandibular canal, and the course of the mandibular canal. Inferior alveolar nerve (IAN) exposure and the presence of hemorrhage were analyzed after removal of the teeth. IAN neurosensory deficit was recorded after 7 days. Clinical and MDCT findings were compared using Fisher’s exact test (P < 0.05). Results There was a statistically significant association between IAN exposure and the tomographic relationship between the roots of third molars and the mandibular canal (P = 0.015). Conventionally, all cases of IAN neurosensory deficit and hemorrhage occurred when the roots of the third molar presented in an at-risk relationship with the mandibular canal, however, this association was not statistically significant (P > 0.05). A statistically significant association was found between the lingual course of the mandibular canal and IAN exposure (P = 0.03). Conclusions MDCT is an effective tool for determination of the surgical risk to the inferior alveolar neurovascular bundle in extraction of mandibular third molars.
Description: Texto completo: acesso restrito. p. 619-624
URI: http://repositorio.ufba.br/ri/handle/ri/16443
ISSN: 0930-1038
Appears in Collections:Artigos Publicados em Periódicos (Odontologia)

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