Mandibular Canal Location: Cone-beam Computed Tomography Examination

Abstract

Mandibular bone thickness, nerve location, and dimension data all contribute to a useful knowledge base for practitioners. The application of CBCT imaging techniques aids in the surgical treatment, while offering advantages over conventional periapical and panoramic films.

Anatomic Relationships of Mandibular Canal. A Cone Beam CT Study

“…The distance from the first molar roots was similar to that reported in some studies (Bornstein et al, 2011;Bürklein et al); however, it was significantly different from the findings of Koivisto et al (2011) (2.3mm) and Sato et al (1 mm). Also, the distance from second premolar to MC reported by Koivisto et al (2016) (2.6mm) was lower than that of the values identified in this study (4.1-3.9 mm).…”

“…The differences observed with previous researches may be explained by the population studied and the technique of analysis used for the location of MC, observing studies that were performed directly in anatomical pieces (Killic et al; Kamburoglu et al), in panoramic radiographs (Littner et al; Sato et al; Jasa et al) and CBCT scans (Kamburog˘lu et al;Uppal et al;Koivisto et al, 2016). In this sense, the CBCT is the 'gold standard' method in which three dimensional images are obtained with high precision of measurements, which allow to analyze clinically structures close to the MC, with a high resolution, low dose radiation and minimal distortion when compared to panoramic radiographs (Jasa et al; Hsu et al;Koivisto et al 2016;He et al, 2016).…”

“…Previous studies (Levine et al, 2007;Kamburoglu et al 2009;Koivisto et al, 2016;Uppal et al 2017) revealed distances of the MC to both corticals, ranging from 1.7-4.35 mm and 2.6-5.4 mm for lingual and buccal walls, respectively. These measurements are higher than those observed in our population but according to the reports by Huang & Liao (2015) who identified mean values of the MC distance to lingual cortical less than 2.7 mm.…”

“…In this sense, the CBCT is the 'gold standard' method in which three dimensional images are obtained with high precision of measurements, which allow to analyze clinically structures close to the MC, with a high resolution, low dose radiation and minimal distortion when compared to panoramic radiographs (Jasa et al; Hsu et al;Koivisto et al 2016;He et al, 2016).…”

“…MC may be damaged by mechanical trauma through irrigants during an endodontic treatment, drilling, root canal over instrumentation, third molar exodontia or damage during implant location (Kawashima et al, 2016;Koivisto et al, 2016). The last procedure has gained popularity in the last few years, as it requires to optimize and plan the surgery considering the distance from the MC due to the considerable paresthesia and nerve damage observed in the literature, to which prevalence ranges are between 13-17 % (Kubilius et al, 2004;Burstein et al, 2008).…”