两种黏结系统牙本质黏结强度研究  

Research of dentin bond strength of two kinds of bonding systems

作　　者：黄锐权[1] 卢锦玉 文力军[3] 顾远平 

机构地区：[1]广西民族医院口腔科,广西南宁530001 [2]桂林医学院,广西桂林541001 [3]右江民族医学院附属医院口腔科,广西百色533000

出　　处：《华夏医学》2017年第5期85-88,共4页Acta Medicinae Sinica

基　　金：桂林市科技攻关项目资助(20130120-13);广西教育厅科技项目资助(2013LX076)

摘　　要：目的:研究第五代全酸蚀黏结系统Optibond S及第七代树脂Optibond AIO自酸蚀黏结系统牙本质黏结强度。方法:选用24颗完整的离体磨牙,并分别对每颗牙的近远中面进行片切,随机分为两组:选用全酸蚀+Optibond S为对照组;Optibond AIO自酸蚀黏结为观察组,两组黏结剂处理后,光固化,在黏结处理面堆积后牙充填纳米复合树脂(Premisa),并将树脂修为底2 mm,高2 mm,厚度约2 mm的三角柱形,光照固化。完成1周后,对所选牙进行疲劳,冷热循环1周后进行拉力测试,并对得到的测量值进行统计学分析。结果:自酸蚀黏结抗剪切力强度为:8.07±3.50,全酸蚀黏结系统牙本质黏结抗剪切力强度为:15.41±5.22,自酸蚀牙本质黏结抗剪切力强度小于全酸蚀黏结(P<0.01)。结论:第五代全酸蚀黏结系统Optibond S体质粘接强度高于第七代树脂Optibond AIO自酸蚀黏结系统牙本质黏结强度更高。Objective： To compare the dentin bond strength between the fifth generation all-etching bond system Optibond S and the seventh resin Optibond AIO self-etching bond system. Methods： 24 extracted human molar were selected. In order to get dentin surfaces,each teeth was sliced on distal and mesial surfaces,and the specimen was randomized into groups. Blocks of nano hybrid resin（ Premisa） were accumulated about 2 mm × 2 mm at the bottom,2 mm high and 2 mm thick triangular prism shape and bonded respectively with Optibond S（ control group） or Optibond AIO（ observation group）. After thermocycling,the specimens＇ shear bond strength and tension were examined and underwent statistical analyzed. Results： Shear bond strength of self-etch was 8.07±3.50,and all-etching was 15.41±5.22,there are differences between the two groups（ P〈0. 01）. Conclusion： The fifth generation all-etching bond system（ Optibond S） provides higher dentin bond strength than that of the seventh generation self-etch bond system（ Optibond AIO）.

关 键 词：全酸蚀黏结剂 自酸蚀黏结剂 牙本质 抗剪切力强度 

分 类 号：R783.1[医药卫生—口腔医学]