CBCT location of the fusion between the buccal and lingual cortical in the mandibular ramus: Importance to sagittal split osteotomy
Med. oral patol. oral cir. bucal (Internet)
; 22(4): e500-e505, jul. 2017. ilus, tab
Article
in English
| IBECS
| ID: ibc-164952
Responsible library:
ES1.1
Localization: BNCS
ABSTRACT
Background:
Mandibular Sagittal Split Osteotomy (MSSO) is a popular technique in orthognathic surgery used both to advance and to retreat the mandible. However, MSSO may incur in important complications, such as bad splits and sensorineural injuries. Knowing the location of the fusion between the buccal and lingual cortical (FBLC) in the mandibular ramus and the bone thickness in the region where osteotomies will be performed is determinant in MSSO planning to avoid complications. The aim of this study was to document and evaluate possible differences between sexes regarding the location of the FBLC in relation to the superior cortical of mandibular foramen (MF) and bone thickness in the region of interest for MSSO in a Brazilian population. Material andMethods:
Eighty five cone-beam Computed Tomography (CBCT) scans were used to perform linear measurements to determine the location of the FBLC. Bone thickness from the mandibular canal (MC) to the cortical external surfaces and the diameter of the MC were measured at three different points mandibular ramus (A), mandibular angle (B) and mesial of the second molar (C).Results:
The FBLC was located at a mean distance of 8.3 mm from the superior cortical of the MF in males and 8.1 mm in females. There was no difference between males and females regarding the mean bone thickness from the MC to the buccal external surface at all the points investigated (p>0.05). Bone thickness from the lingual external surface to the MC was bigger among females than males in regions B and C (p < 0.05). The diameter of the MC was bigger among males in regions B and C.Conclusions:
Sexual dimorphism regarding mandibular bone thickness but not regarding the location of FBLC was present. This fundamental knowledge may assist to the panning of MSSO (AU)RESUMEN
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Full text:
Available
Collection:
National databases
/
Spain
Database:
IBECS
Main subject:
Orthognathic Surgical Procedures
/
Osteotomy, Sagittal Split Ramus
Limits:
Humans
Language:
English
Journal:
Med. oral patol. oral cir. bucal (Internet)
Year:
2017
Document type:
Article
Institution/Affiliation country:
University of São Paulo/Brazil