Journal of the Korean Academy of Pediatric Dentistry 2006;33(1):43-52.
Published online February 28, 2006.
EFFECT OF APF GEL ON THE SURFACE OF COMPOSITE RESIN
전남대학교 치과대학 소아치과학교실 및 치의학연구소 
Correspondence:  , 
Abstract
Topical fluoride application for children is a widely peformed procedure in the field of pediatric dentistry to prevent dental caries. However, it is recently recognized as having some unwanted effects on several esthetic restorative materials as it roughens the surface of the restorative materials. The aim of this study was to evaluate the surface changes in composite resins to topical fluoride. Composite resins(Z 250®, Ultraseal XT® Filtek flow® Revolution®, Denfil®) in topical fluoride agents were immersed and their surface roughness, weight loss and SEM were evaluated. The results were as follows : 1. The 4 minutes-immersion groups showed more roughened surface than 1 minute-immersion groups and the control groups showed the smoothest surface among all the materials, and there was statistically significant difference except the revolution between the groups. 2. There was no significant difference between the 1 minute-immersion groups and 4 minutes-immersion groups in weight loss. 3. The experimental group treated with topical fluoride gel showed the generally mere roughened surface than control group in the SEM findings.
Key Words: Composite resin, APF gel, Topical fluoride application


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