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J Korean Acad Pediatr Dent. 2012;39(2): 153-159.
THE INFLUENCE OF SALIVARY CONTAMINATION ON SHEAR BOND STRENGTH OF PIT AND FISSURE SEALANT BY USE OF SEVERAL BONDING AGENTS
so-yeon Park, sung chul Choi, young chul Choi, kwang chul Kim, jae hong Park
Department of Pediatric Dentistry and Institute of Oral Biology, School of Dentistry, Kyung Hee University
Corresponding Author: sung chul Choi ,Tel: 02-958-9371, Email: pedochoi@khu.ac.kr
Received: August 5, 2011;  Accepted: January 17, 2012.
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ABSTRACT
The objective of this study was to assess the effect of salivary contamination on shear bond strength of pit and fissure sealant using several bonding agents by means of applying saliva at different stages of treatment. 56 teeth were randomly divided into one of seven groups (8 per group): (Group A, B) acid etching; (Group C, D, E) AdperTM Single Bond after acid-etching; (Group F, G) AdperTM Prompt L-pop. Saliva was applied to teeth surface of B, D, E, and G groups for 10 seconds. Especially, group D was contaminated after acid-etching and group E was contaminated with saliva after adhesive application. After light curing, all of the specimens were thermocycled and the shear bond strength tests were performed. The results were as follows. 1. In generally performed pit and fissure sealant group, shear bonding strength significantly differently reduced when was contaminated by saliva (p<0.05). However the group that was applied with bonding agent during pit and fissure sealant procedure, there were no significant differences in the kind of bonding agents nor the stage of contamination. 2. In group that was not contaminated by saliva during pit and fissure sealant treatment, AdperTM Single Bond yielded the highest bonding strength but there were no significant differences. 3. The failure pattern on the debonded surfaces shows that most specimens from groups using bonding agents showed cohesive failures while most specimens from groups that didn't use bonding agents showed adhesive failures.
Keywords: Pit and fissure sealant | Salivary contamination | Shear bond strength
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