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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN:
Vol. 13, No. 4, 2014, pp. 303-307
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Bioline Code: os14057
Full paper language: English
Document type: Research Article
Document available free of charge
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Brazilian Journal of Oral Sciences, Vol. 13, No. 4, 2014, pp. 303-307
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Analysis of anatomical landmarks of the mandibular interforaminal region using CBCT in a Brazilian population
Genú, Paloma Rodrigues; de Holanda Vasconcellos, Ricardo José; de Oliveira, Bruna Paloma; de Vasconcelos, Bruna Caroline Gonçalves & da Cruz Delgado, Nádia Cristina
Abstract
Aim: To evaluate the position, presence, appearance and extent of various anatomical landmarks
in the mandibular interforaminal region of Brazilian patients using cone-beam computed tomography
(CBCT). Methods: A total of 142 CBCT examinations were analyzed to determine the most
common location of the mental foramen (MF), the presence and extent of the anterior loop (AL) of
the inferior alveolar nerve, and the appearance and length of the incisive canal (IC). The
presence of sexual dimorphism and differences with relation to the left and right sides were also
evaluated. Results: Most of the MF (45.5%) was located below the second premolar. The AL
and the IC were observed in 18.9 and 96.5% of the images respectively. The average length of
AL and IC was 3.14±1.25 mm and 13.68±5.94 mm respectively. No significant differences (p>0.05)
between genders or left and right sides were observed for all evaluated parameters. Conclusions:
The most common location of the MF, the high rate of visualization of the IC and the occasional
presence of AL in the studied Brazilian population demonstrate the importance of using threedimensional
images of the mandibular anterior region, allowing proper surgical planning and
preventing injury to the neurovascular bundle.
Keywords
mandible; cone-beam computed tomography; surgery; oral; mandibular nerve
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