两种不同联合支抗形式矫治双颌前突的临床研究  

Clinical comparison of two kinds of reinforcing anchorage in the treatment of bimaxillary protrusion

作　　者：杨庆慧 祖彬彬[1] 

机构地区：[1]首都医科大学口腔医学院正畸科,北京100050

出　　处：《北京口腔医学》2012年第1期44-47,共4页Beijing Journal of Stomatology

摘　　要：目的比较横腭杆与Nance弓以及横腭杆与滑动杆两种不同口内联合支抗系统矫治双颌前突的临床疗效。方法选取11～29岁双颌前突患者30例,分为两组:横腭杆与Nance弓联合支抗组、横腭杆与滑动杆联合支抗组,各组均拔除4个第一前磨牙,两步法关闭拔牙间隙,使用MBT直丝弓固定矫治技术治疗,分析治疗前后X线头颅侧位片各项指标变化。结果横腭杆与Nance弓联合支抗组磨牙前移量治疗前后有显著性差异,而横腭杆与滑动杆联合支抗组无显著变化;横腭杆与滑动杆组切牙牙根后移量大于横腭杆与Nance弓组,两组间有显著性差异。结论横腭杆与滑动杆联合支抗在矢状向控制及切牙整体移动方面较好,优于横腭杆与Nance弓联合支抗,可以作为一种有效的非依赖性口内强支抗矫治双颌前突拔牙的病例。Objective To compare the effects of transpalatal-Nance arch and transpalatal-sliding arch reinforcing anchorages in the treatment of bimaxillary protrusion.Methods A total of 30 patients with bimaxillary protrusion,aged 11-29 years,were selected and divided into transpalatal-Nance arch group and transpalatal-sliding arch group after extraction of four first premolars.All the patients were treated by MBT technique and extraction space was closed by Two-step method.Lateral cephalometric radiographs before and after treatment were taken and analyzed.Results The average forward movement of first upper molar increased in transpalatal-Nance arch group,but did not change in the transpalatal-sliding arch group.The average backward movement of incisive root increased.Conclusion Transpalatal-sliding arch anchorage system is effective in sagittal control and backward movement of incisor.It can be used as a noncooperative strong anchorage in the treatment of bimaxillary protrusion.

关 键 词：横腭杆 NANCE弓 滑动杆 支抗 双颌前突 

分 类 号：R783.5[医药卫生—口腔医学]