六种正畸粘结剂粘结强度的比较分析

发布时间：2018-04-06 22:13

  本文选题：正畸　切入点：粘结剂　出处：《浙江大学》2014年硕士论文

【摘要】：目的： 比较使用六种不同粘结剂在模拟口腔环境的体外实验中的抗剪切力的大小及粘结剂的牙表面残余量。分析各种粘结剂的优缺点,为临床正畸治疗中粘结剂的选择做参考。 方法： 选择健康前磨牙60颗,随机分为六组,分别使用Transbond XT光固化型树脂粘结剂(美国,3M)；非调拌型牙釉质粘合树脂(中国,西湖巴尔)；光固化型牙釉质粘合树脂(中国,西湖巴尔)；GC光固化型玻璃离子粘结剂(日本,富士)；Medicept光固化型树脂粘结剂(英国,Medicept); Prime-Dent光固化型树脂粘结剂(美国,Prime-Dent)等六种粘结剂严格按说明书操作粘结托槽,置于37℃的人工唾液中24小时后,用测力仪以lmm/min的速度剪切下托槽,记录最大力值算出粘结剂的抗剪切力强度,将所得数据用SPSS17.0统计软件进行分析,将卸载了托槽的牙面在10倍放大镜下观察残留在牙釉质上的粘结剂量,并进行ARI评分,将结果进行Kruskall-wallis H检验。 结果： 单因素方差分析显示各组间的粘结强度有显著性差异(P0.05)；以TransbondXT光固化型树脂粘结剂组为经典标准参照,则GC光固化型玻璃离子粘结剂组和Prime-Dent光固化型树脂粘结剂组与之存在显著性差异(P0.05),粘结强度明显不足,其余三组与之无显著性差异；ARI评分结果进行Kruskall-wallis H检验显示各组间无显著性差异(P0.05) 结论： 虽然六种正畸粘结剂的粘结强度存在差异,但基本都能够满足正畸临床工作的需要。Transbond XT光固化型树脂粘结剂是稳定可靠的正畸粘结剂。西湖巴尔非调拌型牙釉质粘合树脂及光固化型牙釉质粘合树脂粘结强度高,值得临床推广使用。
[Abstract]:Objective:The magnitude of shear stress and the residual amount of tooth surface of six different binders in simulated oral environment were compared.The advantages and disadvantages of various binders were analyzed to provide references for the selection of binders in orthodontic treatment.Methods:60 healthy premolars were randomly divided into six groups and treated with Transbond XT photocurable resin binder (USA), unmixed enamel adhesive resin (Xihu Barr, China), and light-cured enamel adhesive resin (China, China, China).Six kinds of glass-ion binders, such as Prime-Dent photocurable resin binder (Japan, Japan, Medicept photocurable resin binder), and Prime-Dent light-curable resin binder (Prime-Dent), are operated strictly according to instructions.After being placed in artificial saliva at 37 鈩，

本文编号：1719128