Orthodontic retention and adjustment of the occlusion after orthognathic surgery.

Author: Yin-zhong DUAN ¹ ; Jia-li TAN ; Lei CHEN ; Fang NING
Author Information

1. Dept. of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China.
Publication Type:Journal Article
MeSH: Adult; Cephalometry; Dental Occlusion; Humans; Male; Malocclusion; Mandible; Maxilla; Orthognathic Surgery; Osteotomy; Osteotomy, Le Fort
From: West China Journal of Stomatology 2011;29(2):173-178
CountryChina
Language:Chinese
Abstract:
OBJECTIVETo investigate the orthodontic retention and adjustment of the occlusion after orthognathic surgery.
METHODS18 patients were divided into three groups. Group I: Cases with skeletal Class I bimaxillary protrusion treated by subapical osteotomy; Group II: Cases with skeletal Class II mandibular retrusion treated by sagittal split mandibular advancement surgery; Group III: Cases with skeletal Class III treated by Le Fort I osteotomy on maxilla and sagittal split osteotomy on mandible. There were 6 patients in each group. Three kinds of orthodontic elastic tractions were used based on different categories of malocclusion and different types of operation.
RESULTS18 patients attained functional occlusion after the orthodontic occlusion adjustment. There was no relapse and malocclusion by surgery.
CONCLUSIONIntermaxillary elastics based on different categories of occlusion and different kinds of surgery can improve the occlusion after orthognathic surgery and attatin the functional occlusion.