摘要
目的比较树脂粘接式横腭杆在控制磨牙支抗方面与传统带环焊接式横腭杆的区别。方法选择安氏Ⅱ类或Ⅰ类上颌前突或双颌前突需要中度支抗的患者4 0例,分为两组,一组使用树脂粘接式横腭杆,一组使用带环焊接式横腭杆来加强支抗,全部患者均拔除4个第一前磨牙并采用标准MBT技术矫正,对治疗前后的X线头影测量片进行测量和t检验,同时对树脂粘接式横腭杆进行脱落率统计。结果树脂粘接式和带环焊接式横腭杆磨牙近中移动量分别为1.1 6±10.63和1.16±0.75。在垂直方向控制方面,两组在用不同的横腭杆治疗前后下颌平面角(GoGn-SN交角)、FMA角(MP-FH交角)、腭平面角(PP-SN交角)、平面与腭平面交角(OP-PP交角)、平面角(OP-SN交角)均无明显变化。结论树脂粘接式横腭杆和焊接式横腭杆在矢状方向和垂直方向控制上无明显差别,树脂粘接式在控制磨牙支抗方面和传统横腭杆没有明显区别。树脂粘接式横腭杆临床操作简单,脱落率低,临床可推广应用。
Objective To compare the resin-bonded transpalatal arch（TPA） and the band-soldered TPA on reinforcing the first molar anchorge.Methods Forty adult patients with maxillary protrusion or bialveolar protrusion needed medium anchorge were included in this study and were randomly divided into two groups.One group used resin-bonded TPA,and the other group used band-soldered TPA.All the patients were treated by classical MBT with four first premolars extracted.Cephalometric analysis were taken before and after the treatment and statistic the drop rate of the resin-bonded TPA.Results The mesial movement in resin-bonded TPA group was 1.16±0.63 and that in band-soldering TPA group was 1.16±0.75.From the change of the GoGn-SNplane,FMA plane,PP-SN plane,OP-PP plane,OP-Sn plane,we can find that two of these groups had no significant difference in vertical plane.There was a good control in vertical of the molar.Conclusion The resin-bonded TPA and the band-soldered TPA had no significant difference on the sagittal plane and vertical plane.The resin-bonded TPA can be made easily in clinic and has no significant difference with the traditional TPA,and also has low drop rate.It is worth of the clinically adoption and generalization.
出处
《福建医药杂志》
CAS
2011年第3期9-12,共4页
Fujian Medical Journal
