CBCT study on the prevalence, morphology and position of the mandibular incisive canal in a North-Brazilian population.

Autor:	Martins VB; Division of Oral Radiology, Faculdade Sao Leopoldo Mandic, Brazil., Oenning AC; Division of Oral Radiology, Faculdade Sao Leopoldo Mandic, Brazil., Guimarães LC; Division of Forensic Dentistry, Faculdade Sao Leopoldo Mandic, Brazil., Junqueira JL; Division of Oral Radiology, Faculdade Sao Leopoldo Mandic, Brazil., Franco A; Division of Forensic Dentistry, Faculdade Sao Leopoldo Mandic, Brazil.; Centre of Forensic and Legal Medicine and Dentistry, University of Dundee, UK.
Jazyk:	angličtina
Zdroj:	Journal of clinical and experimental dentistry [J Clin Exp Dent] 2022 Jul 01; Vol. 14 (7), pp. e534-e540. Date of Electronic Publication: 2022 Jul 01 (Print Publication: 2022).
DOI:	10.4317/jced.59487
Abstrakt:	Background: The mandibular incisive canal (MIC) is an anatomic structure to be considered in treatment planning for surgeries in the anterior region of the mandible. Awareness of the MIC increased with the use of 3D imaging for treatment planning, such as cone beam computed tomography (CBCT). This study aimed to use CBCT to assess the prevalence, morphology and position of the MIC among North-Brazilians. Material and Methods: The sample consisted of CBCT scans of 100 hemi-mandibles (50 individuals) that were assessed for the absolute (n) and relative frequency of the MIC. The morphological component of this study was the diameter (mm) of the detected MIC in five anatomic sites between the mental foramen and the midline. Within the interformainal region, the position of the MIC was assessed by measuring (mm) the distances between the MIC and the basal, vestibular and lingual cortical bone surfaces. Results: The prevalence of the MIC was >76% considering the different anatomic regions screened in CBCT. The mean diameter of the MIC progressively reduced from 1.29 mm to 0.86 throughout the five anatomic regions measured. The position of the MIC showed a downward trajectory away from the lingual cortical bone surface. Conclusions: MIC was a highly prevalent anatomic structure in the studied sample. The funnel-shaped outline of the MIC and its trajectory into the interforaminal region highlighted a major risk of damage to the neurovascular bundle in surgeries (e.g. implant placement) that are close to the mental foramen and the vestibular cortical bone. Key words: Anatomy, cone beam computed tomography, imaging, mandibular incisive canal, oral radiology. Competing Interests: Conflicts of interest The authors state that there are no conflicts of interest related to this work. (Copyright: © 2022 Medicina Oral S.L.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu