自酸蚀黏结系统对窝沟封闭剂黏结强度的影响  

Effects of bond strength on pit and fissure sealants using self-etching bonding system

作　　者：李蕾[1] 袁杰[1] 张磊[1] 张晓丹[1] 

机构地区：[1]哈尔滨医科大学口腔医学院,黑龙江哈尔滨150001

出　　处：《牙体牙髓牙周病学杂志》2008年第10期577-580,共4页Chinese Journal of Conservative Dentistry

摘　　要：目的:评价自酸蚀黏结系统对3种窝沟封闭剂剪切黏结强度的影响。方法:选取前磨牙36个,随机分为实验组与对照组,每组18个。实验组分为3小组,经自酸蚀黏结系统(XenoⅢ)处理后,分别与3种窝沟封闭剂(Estiseal F,Concise,Ionosit Seal)黏结。对照组分为3小组,用GLUMA牙釉质酸蚀凝胶酸蚀后分别与3种窝沟封闭剂黏结。37℃水浴保存24h,万能材料试验机检测剪切黏结强度,扫描电镜(SEM)观察断裂面形态。结果:实验组的剪切黏结强度(SBS)明显高于对照组(P<0.05);SEM观察结果表明,断裂形式取决于酸蚀系统的类型。结论:自酸蚀黏结系统可以提高窝沟封闭剂与釉质的剪切黏结强度。AIM ： To evaluate the effects of shear bond strength on 3 kinds of pit and fissure sealants using self - etching bonding system. METHODS ： 36 premolars were used and randomly divided into experimental group and control group with 18 teeth of each. The experimental group was divided into 3 subgroups. 3 kinds of pit and fissure sealants （ Estiseal F ; Concise ; Ionosit Seal） were applied after using self - etching bonding system（ Xeno Ⅲ ）. Teeeh in control group were divided into 3 subgroups and bonded with 3 pit and fissure sealants separately after etching separately. The specimens were treated for shear bond strengths on the testing machine after stored in 37℃ distilled water for 24 hours. Scanning electron microscopy （SEM） were carried out to observe the morphological differences of the fracture surface. RESULTS ： The shear bond strengths of the experimental group were higher than that of the control group （ P 〈 0.05 ）. The SEM examination showed that the failure of bonding was predominantly related to the type of etching systems used. CONCLUSION： The use of self - etching bonding system improves the enamel shear bond strength of pit and fissure sealants.

关 键 词：剪切黏结强度 自酸蚀黏结系统 窝沟封闭剂 

分 类 号：R783.1[医药卫生—口腔医学]