Evaluation of the Anatomic Position of the Mandibular Canal Regarding to the Segments of the Mandibular Sagittal Split Ramus Osteotomy to Diminish the Possibility of Injuries: a Pilot Study.

Autor:	Dos Santos VDB; Federal University of Rio Grande do Norte (UFRN)Brazil., Queiroz SIML; Federal University of Rio Grande do Norte (UFRN)Brazil., da Silva AC; Oral and Maxillofacial Surgeon at a Private Practice, São Paulo, SPBrazil., Silva S; Departamento de Ortodontia da Universidade Católica de Viseu, ViseuPortugal., da Silva JSP; Oral Maxillofacial and Trauma Surgery of the 'Hospital Universitário Onofre Lopes', Federal University of Rio Grande do Norte, Natal, Rio Grande do NorteBrazil., Fernandes GVO; Periodontics and Oral Medicine Department, University of Michigan, Ann ArborUSA., Germano AR; Oral Maxillofacial and Trauma Surgery of the 'Hospital Universitário Onofre Lopes', Federal University of Rio Grande do Norte, Natal, Rio Grande do NorteBrazil.
Jazyk:	angličtina
Zdroj:	Journal of oral & maxillofacial research [J Oral Maxillofac Res] 2022 Dec 31; Vol. 13 (4), pp. e2. Date of Electronic Publication: 2022 Dec 31 (Print Publication: 2022).
DOI:	10.5037/jomr.2022.13402
Abstrakt:	Objectives: This pilot study evaluated the relationship between inferior alveolar nerve location through computed tomography scan and intraoperative inferior alveolar nerve entrapment after bilateral sagittal split osteotomy. Material and Methods: Overall, 20 helicoidal computed tomography scans were evaluated in patients with facial deformities who underwent to bilateral sagittal split osteotomy (BSSO). The distance from the mandibular canal to the internal surface of the buccal and lingual cortical bone, mandibular thickness, bone density and proportion of medullary and cortical bone in 3 regions were evaluated. During the intraoperative period, the segment to which the nerve remained adhered after performing BSSO was analysed, and the data correlated. Results: The distance from the mandibular canal to the buccal cortical bone showed a mean of 2.6 mm when the inferior alveolar nerve was adhered to the distal segment and mean of 0.7 mm when the nerve was adhered to the proximal segment. The thickness was 11.2 mm and 9.8 mm when the nerve was adhered the distal the proximal segments respectively. Mandibular thickness, distance from the mandibular canal to the buccal and lingual cortical were statistically related to intraoperative nerve entrapment (P < 0.05). Conclusions: Narrow jaws and the distance from the mandibular canal to buccal cortical bone less than 2 mm increases the risk of the inferior alveolar nerve entrapment in bilateral sagittal split osteotomy. (Copyright © dos Santos VDB, Queiroz SIML, da Silva AC, Silva S, da Silva JSP, Fernandes GVO, Germano AR. Published in the JOURNAL OF ORAL & MAXILLOFACIAL RESEARCH (http://www.ejomr.org), 31 December 2022.)
Databáze:	MEDLINE
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