Inferior alveolar nerve function after mandibular osteotomies

摘要

A total of 1034 patients who had undergone orthognathic surgery were exmained after 2 years; 818 had been treated with varying types of mandibular osteotomy such as vertical ramus osteotomy, sagittal split ramus osteotomy, and genioplasty. Neurosensory function in them mental nerve region was assessed by evaluating light touch perception. The incidence of neurosensory deficiency was 216/548 (39/100) after sagittal split ramus osteotomy, 26/140 (19/100) after extraoral vertica ramus osteotomy, 9/78 (12/100) after geioplasty and 60/650 (9/100) after intraoral vertical Ramus osteotomy.