Orthodontic retention and adjustment of the occlusion after orthognathic surgery / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the orthodontic retention and adjustment of the occlusion after orthognathic surgery.</p><p><b>METHODS</b>18 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.</p><p><b>RESULTS</b>18 patients attained functional occlusion after the orthodontic occlusion adjustment. There was no relapse and malocclusion by surgery.</p><p><b>CONCLUSION</b>Intermaxillary elastics based on different categories of occlusion and different kinds of surgery can improve the occlusion after orthognathic surgery and attatin the functional occlusion.</p>