Hadavi F, Hey J H, Ambrose E R, Louie P W, Shinkewski D J
University of Saskatchewan, College of Dentistry, Department of Restorative and Prosthetic Dentistry, Saskatoon, Canada.
Oper Dent. 1993 Mar-Apr;18(2):61-5.
The purpose of this study was to determine the effect of accidental dentin primer contact with etched enamel on shear bond strength of composite resin to enamel. Four dentin bonding systems were included in this study: GLUMA Dentin Bond, Scotchbond, and Prisma Universal Bond 2 and 3. Eighty extracted human permanent anterior teeth were used and divided in eight test groups. The vestibular surfaces were ground and acid etched. For each dentin bonding system 10 samples were treated with dentin primer prior to placement of resin. Shear bond testing showed that enamel contact with dentin primer in the above two systems decreased the shear bond strength between composite and enamel by 31 to 44%.
本研究的目的是确定意外的牙本质底漆与酸蚀釉质接触对复合树脂与釉质剪切粘结强度的影响。本研究纳入了四种牙本质粘结系统：GLUMA牙本质粘结剂、Scotchbond以及Prisma Universal Bond 2和3。使用了80颗拔除的人类恒牙，并将其分为8个测试组。对唇面进行打磨和酸蚀。对于每种牙本质粘结系统，在放置树脂之前，有10个样本用牙本质底漆进行处理。剪切粘结测试表明，上述两种系统中牙本质底漆与釉质的接触使复合材料与釉质之间的剪切粘结强度降低了31%至44%。
