摘要
Abstract
Objective To observe clinical curative effect of orthodontic and orthognathic combined therapy on skeletal ClassⅢ malocclusion and its influences on orthodontic effect and soft and hard tissue changes of facial profile.Methods A total of 70 adolescent patients with skeletal Class Ⅲ malocclusion undergoing orthodontic and orthognathic combined therapy in stomatology department of the hospital were enrolled between December 2019 and January 2021.Before and after combined therapy,lateral cephalic radiographs were obtained by taking lateral X-rays.The dentition,bone and soft tissue indexes were detected.A total of 35 normal occlusion objects undergoing oral examinations during the same period were enrolled as controls.The orthodontic effect and changes in soft and hard tissues of facial profile and oral health-related quality of life scale(OHRQOL)were observed.Results After holistic treatment,UI-NA and UI-LI angles were lower than those before treatment,while LI-NB angle was greater than that before treatment(all P＜0.05);UI-NA distance was shorter than that before treatment,while LI-NB distance was longer that that before treatment(all P＜0.05);SNA and LI-MP angles were greater than those before treatment(all P＜0.05),while SNB,ANB and MP-SN angles were lower than those before treatment(all P＜0.05);Posterior convex angle and nasolabial angle were greater than that before treatment(P＜0.05),while mentolabial angle and facial angle of soft tissue were lower than those before treatment(P＜0.05).After treatment,distance from Sn and UL to VRL was longer than that before treatment,while distance from LL´,Pg´ and Si to VRL was shorter than that before treatment(all P＜0.05).There was no significant difference in any index between at 1 month after orthognathic surgery and after holistic treatment(P＞0.05).The OHRQOL score after holistic treatment was lower than that before treatment(P＜0.05),and was lower than that after orthodontic treatment and 1 month after orthognathic surgery(all P＜0.05).Conclusion Orthodontic and orthognathic combined therapy has good orthodontic effect,which can effectively improve soft and hard tissues of facial profile,with good stability.关键词
骨性Ⅲ类错(牙合)畸形/正畸-正颌联合治疗/正畸效果/侧貌软硬组织/面型改善Key words
skeletal Class Ⅲ malocclusion/orthodontic and orthognathic combined therapy/orthodontic effect/soft and hard tissue of facial profile/improvement of facial profile分类
医药卫生
