THE DETERMINATION OF SAFE ZONE FOR HORIZONTAL RAMUS CUT IN SAGITTAL SPLIT RAMUS OSTEOTOMY WITH CONE BEAM COMPUTED TOMOGRAPHY: A RETROSPECTIVE PILOT STUDY

Abstract

Bilateral sagittal split ramus osteotomy (BSSRO) is commonly used to correct mandibular deformities. The first cut for this osteotomy is performed on the medial aspect above the lingula. During this procedure; The most feared intraoperative complication, the undesired fracture. Most of the BSSRO complications consist of condyle fracture or buccal/lingual plate fracture. The aim of this study was to determined the distance between the lingula and the sigmoid notch which is a surgical importance for BSSRO.