第7代黏接剂与正常和龋损牙本质黏接强度的比较(英文)  

Bond strength of seventh generation adhesives to normal and caries-affected dentine

作　　者：王清[1] 邓婧[1] 范春[1] 

机构地区：[1]青岛大学医学院附属医院,山东省青岛市266003

出　　处：《中国组织工程研究与临床康复》2011年第16期3033-3036,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

摘　　要：背景：对于第1~6代牙本质黏接剂的黏接强度,国内外学者做了大量的研究并取得了满意的成果,但尚未见对第7代黏接剂Adper EasyT Mone黏接性能的相关报道。目的：比较3M第7代自酸蚀黏接剂对正常和龋损牙本质黏接强度的差异,并与传统全酸蚀黏接剂进行对比。方法：取健康磨牙和牙合面慢性龋磨牙各12颗,分为A、B（健康磨牙）,C、D（牙合面慢性龋磨牙）4组,其中A、C组用Adper EasyTM one黏接剂,B、D组用Singlebond2黏接剂。测试4组试件的微拉伸强度,观察断裂界面形态。结果与结论：A、B组的黏接强度分别为（21.84±3.98）,（27.10±4.85）MPa,C、D组的黏接强度分别为（16.44±3.46）,（21.48±4.85）MPa,A组与B组、C组与D组、A组与C组、B组与D组之间的微拉伸强度差异均具有显著性意义（P〈0.05）。断裂多发生在树脂-牙本质黏接界面。提示无论在正常牙本质还是龋损影响牙本质,全酸蚀黏接剂的黏接强度强于第7代自酸蚀黏接剂;对于同一种黏接剂正常牙本质能获得比龋损牙本质更大的黏接强度。BACKGROUND： Researchers in China and abroad have done a lot of experiments to study the bond strength of dentine adhesives from generation one to six, which have received satisfied results. However, there are still no reports about the bond strength of the seventh generation adhesive （Adper EasyTM one）. OBJECTIVE： To evaluate the bond strength of the Adper EasyTM one to normal dentine and caries-affected dentine, and to compare the results with total-etching adhesives. METHODS： A total of 12 healthy posterior teeth were randomly divided into group A and B; 12 posterior teeth with chronic occlusal caries were divided into group C and D. Adper EasyTM one was applied for group A and C, while Single bond 2 for group B and D. The modes of group A, B, C, D were subjected to microtensile bond strength test. Interfacial morphologies were analyzed by Stereo-Microscopy. RESULTS AND CONCLUSION： The microtensile bond strength of group A and B was （21.84±3.98）, （27.10±4.85） MPa, which was （16.44±3.46） and （21.48±4.85） MPa in the group C and D. The differences between group A and B, group C and D, group A and C, as well as group B and D were statistical significant （P 0.05）. Failures mostly occur along the resin-dentine interface. The total-etching adhesives performed more effectively to both normal dentine and caries-affected dentine than Adper EasyTM one. For the same adhesive, the healthy dentine yielded higher bond strength than the caries-affected dentine.

关 键 词：微拉伸 黏接强度 Adper EasyTM 

分 类 号：R318[医药卫生—生物医学工程]