Journal of the Korean Academy of Pediatric Dentistry 2001;28(4):566-574.
Published online November 30, 2001.
A STUDY ON THE EFFECT OF SALIVA CONTAMINATION ON THE BOND STRENGTH OF ONE-BOTTLE ADHESIVE SYSTEM
 
타액 오염이 One bottle 상아질 결합제의 전단결합강도에 미치는 영향에 관한 연구
전형준, 김종수, 권순원
단국대학교 치과대학 소아치과학 교실
Abstract
For decades it has been a clinically accepted requirement, in case of salivary contamination, to re-etch conditioned enamel and dentin to proceed with the adhesive technique. Only a few reports have been so far dealing with the potential of one-bottle adhesive system to bond even when applied after salivary contamination and without re-etching. The purpose of this study was to evaluate the influence of the salivary contamination on the shear bond strength of dentin. The results were as follows: 1. In group II, in which saliva contamination and washing occurred before applying of Prime & Bond NT showed high shear bond strength as in control group. In Group III and IV, in which the cured adhesive was contaminated with saliva, showed significantly lower mean bond strength, 2. Relating long resin tags of 70~120μm were observed in samples of all groups under SEM. We could observed hybrid layer, resin tag and many lateral branches in every group. And there were no differences between groups.
Key Words: Saliva contamination, One bottle adhesive system, Re-etchinng


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