微种植体支抗辅助正畸治疗推上颌磨牙整体远移的远期疗效观察  

Long-term Effect of Mini-implant Anchorage Assisted Orthodontic Treatment of Maxillary Molar Distalization

作　　者：吴彬 黎伟 覃李玲 刘晓庆 万丽 杨艳[4] WU Bin;LI Wei;QIN Liing;LIU Xiaoqing;WAN Li;YANG Yan(Oral Medical Center,the Third Clinical Medical College of China Three Gorges University,Yichang 443000,Hubei,China;Oral Medical Center,Gezhouba Central Hospital of Sinopharm,Yichang 443000,Hubei,China;Wuhan Cunji Oral Hospital,Wuhan 430024,Hubei,China;Department of Stomatology,Zhongnan Hospital of Wuhan University,Wuhan 430070,Hubei,China)

机构地区：[1]三峡大学第三临床医学院口腔医学中心,湖北宜昌443000 [2]国药葛洲坝中心医院口腔医学中心,湖北宜昌443000 [3]武汉存济口腔医院,湖北武汉430024 [4]武汉大学中南医院口腔科,湖北武汉430070

出　　处：《中国美容医学》2023年第4期130-133,共4页Chinese Journal of Aesthetic Medicine

摘　　要：目的:研究微种植体支抗辅助上颌磨牙整体远移矫治安氏Ⅱ类错牙合畸形伴轻中度拥挤病例的远期效果。方法:选取成年正畸患者30例,根据治疗需要在双侧磨牙区各植入一枚微种植体支抗辅助推上颌磨牙远移。记录患者治疗前(T0)、治疗结束时(T1)及治疗后3年(T2)的影像及模型资料。通过比较三个时间点患者头影测量值的差异,以观察微种植体支抗辅助上颌磨牙整体远移的远期疗效。结果:平均治疗时间27.6个月,平均随访时间为36.3个月。治疗结束时,U6牙冠远移平均值为4.4 mm,U1牙冠腭侧移动值为3.4 mm,牙冠向腭侧旋转3.7°,与治疗前相比差异均有统计学意义(P<0.05);治疗结束后3年,U6在矢状向与轴倾角的变化与正畸治疗结束时比较差异均无统计学意义(P>0.05),但∠MP-FH与PHF/AFH的变化具有统计学意义(P<0.05)。结论:微种植体支抗辅助上颌磨牙向远中移动时,磨牙移动基本为冠根整体移动,并且远期疗效稳定。Objective To investigate long-term treatment stability of mini-implants anchored maxillary distalization in ClassⅡmalocclusion.Methods This retrospective study included 30 adults with ClassⅡmalocclusion.Mini-implants was used to maxillary distalization.Lateral cephalograms of all patients were taken before(T0),immediately after(T1),and 3 years after treatment(T2).Lateral cephalograms analysis,horizontal and vertical movement and tipping of the maxillary first molars(U6)and central incisors(U1)were measured at 3 time points to compare the achieved treatment effects and long-term stability.Results The average duration of treatment was 27.6 months.The average follow-up time was 36.3 months.At the end of treatment,the U6 dental crown average distance value was 4.4 mm,the U1 palatal side of the tooth crown average distance value was3.4 mm,the crown rotates to the palatal side 3.7°.Compared with before treatment,both of them has statistically significant(P<0.05).3 years after the end of treatment,the variation of sagittal direction and axial dip angle of U6 compaired with T1 have no statistical differences(P>0.05).But the variation of∠MP-FH and PHF/AFH has statistically significant(P<0.05).Conclusion In ClassⅡtreatment,mini-implants anchored maxillary upper arch distalization can provide stable distal movement of the maxillary first molars and central incisors.

关 键 词：微种植体支抗 磨牙远移 Ⅱ类错牙合畸形 远期疗效 

分 类 号：R783.5[医药卫生—口腔医学]