Abstract

QUISPE-HUARCAYA, Magaly Lizbet; QUEZADA-MARQUEZ, Milushka Miroslava  and  LEON-MANCO, Roberto Antonio. Tomographic characteristics of the bifurcation of the mandibular canal. Rev. Estomatol. Herediana [online]. 2016, vol.26, n.3, pp.122-131. ISSN 1019-4355.  http://dx.doi.org/10.20453/reh.v26i3.2955.

Objectives: To evaluate the tomographic characteristics of the bifurcation of the mandibular canal (BCDI) using cone beam computed tomography (CBCT). Material and Methods: 1497 CBCT were reviewed (from 527 men and 970 women), of the Department of Oral and Maxillofacial Radiology, from Universidad Peruana Cayetano Heredia, period 2011 - 2014. Image analysis were made using the software 1.7.2 Galilee. Patients age was between 10 to 89 years old, averaging 44.8 ± 14 years. Naitoh classification, Hiraiwa, Aimiya and Ariji was also used. Statistical analysis was made by using the chi-square test. Results: The frequency of BCDI was 10.75% (161 cases). The highest frequency was found in the fifth decade of life for both sexes, there wasn’t statistically significant difference between female and male sex (p=0.49). The distribution of the BCDI showed that the kind Canal retromolar represents 64% (103 cases), followed by the type Canal without previous confluence with 21.1% (34 cases) and minority was found the dental Canal and Canal above confluence with 9.9% (16 cases) and 5% (8 cases) respectively. Conclusions: The bifurcation of mandibular canal has a prevalence of 10.75% and CBCT allows timely identification of this anatomical variant.

Keywords : Anatomical variation; cone beam computed tomography; bifid mandibular canal; inferior alveolar nerve.

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