[摘要]目的：研究微型种植体支抗治疗双颌前突病例的，临床应用效果。方法：选择在沈阳市口腔医院正畸科就诊，符合纳入标准的双颌前突患者14例，随机分成2组，分别采用微型种植体与传统方法加强支抗，通过术前术后X线头影测量结果变化评价2种支抗方法的临床有效性。结果：2组患者在6～8个月后上下颌前牙内收均达到预定位置，实验组上下颌第一恒磨牙牙冠分别近中移动0、29 mm和0.56 mm，上下颌切牙切缘分别腭侧移动6.93 mm和6.03 mm；对照组上下颌第一恒磨牙牙冠分别近中移动1.36 mm和1.96 mm，上下切牙切缘分别腭侧移动5.79 mm和4.21 mm。结论：微型种植体支抗完全可以代替传统支抗方法，满足正畸临床治疗双颌前突的需要，实现前牙最大程度的内收。
[关键词]微型种植体；双颌前突；支抗
[中图分类号]R783.5 【文献标识码】A 【文章编号】0258—4646(2006)04—0395—03
Position changes of incisors and molars in the treatment of bimaxillary protrusion with micro-implant orthodontic anchorage
JIANG Xiao—hong，ZHANG rang，LIU Ji—hui，XU ran
(Department of Orthodontics，The Afiliated Stomatologlcal Hospital，China Medical University，Shenyang 110002，China)
[Abstract] 0bjective：To investigate the clinical outcome of bimaxilary protrusion following the treatment with micro—implant as
orthodontic anchorage Methods：Fourteen patients were selected according to the selection criteria and randomly divided into 2 groups：experiment group(using micro—implant as the orthodontic anchorage)and control group(using traditional orthodontic anchor—age). Cephalometric measurements before and after the treatment were used to evaluate the clinical tcomes.Results：The a
