病变第一磨牙拔除行矫治错颌畸形的临床体会

Clinical experience of orthodontic treatment combined with extraction treatment for decayed first molar

目的:探讨拔除病变第一磨牙进行正畸治疗的可行性和矫治效果。方法:收集35例拔除病变第一磨牙同时需要进行正畸治疗的病例,平均年龄16.5岁,包括18颗上颌第一磨牙和29颗下颌第一磨牙。全部病例均采用直丝弓矫治技术,常规粘接托槽,顺序更换弓丝,待牙列排齐整平后,利用滑动法关闭拔牙间隙,精细调整咬合。结果:33例患者都达到良好的矫治效果,第一磨牙间隙完全关闭,后牙咬合关系良好,达到了改善咬合功能和美观的目的。2个陈旧性缺损病例改为修复治疗。结论:拔除龋坏第一磨牙进行错颌畸形矫治,获得良好临床疗效。

Objective：To study the feasibility and effects of orthodontic treatment combined with extraction treatment for malocclusion and decayed first molar.Methods：Thirty-five patients with malocclusion and decayed first molars were selected,whose average age was 15.6 years old.Eighteen upper first molars and twenty-nine lower first molars were included.All patients were treated with straight wire appliance.The procedure included bonding brackets,putting arch wire,leveling dentition,closing extraction space and adjusting occlusal relationships routinely.Results：When the treatment was finished,thirty-three cases gained satisfactory results,molar space was completely closed,occlusion was perfect,and the occlusion and facial profile were improved.However,two patients with old defects accepted prosthodontic treatment finally.Conclusions：The orthodontic treatment combined with extraction treatment for the malocclusion and decayed first molar could retain more healthy teeth,gain satisfactory orthodontic results and improve the occlusion.