EFFECT OF A FLUORIDE VARNISH ON THE ENAMEL DEMINERALIZATION

Yoon, Myung-Ok; Lee, Nan-Young; Lee, Sang-Ho

Journal of the Korean Academy of Pediatric Dentistry 2008;35(3):446-455.
Published online August 31, 2008.

EFFECT OF A FLUORIDE VARNISH ON THE ENAMEL DEMINERALIZATION

Myung-Ok Yoon, Nan-Young Lee, Sang-Ho Lee

Department of Pediatric Dentistry, College of Dentistry, Chosun University

불소바니쉬가 법랑질 탈회에 미치는 영향

윤명옥, 이난영, 이상호

조선대학교 치과대학 소아치과학 교실

Correspondence: Sang-Ho Lee, Tel: 062-220-3860, Email: shclee@chosun.ac.kr

Received: 10 December 2007 • Accepted: 16 July 2008

Abstract

The aim of this study was to evaluate the effect of fluoride varnish application on enamel decalcification. Eighty bovine enamel blocks divided randomly into 4 groups. Group I is the control group. Group II was treated with the APF gel and washed after 4 minutes. Group III and IV was treated with Fluor Protector^® and CavityShield^TM and washed after 1 minutes. Decalcification were created by placing all specimen into artificial acidic solution(pH 4.0). Then the optical density of the lesions were measured by visible light fluorescence and the lesion depths were measured. The results were : 1. The optical density of group II was higher than group I but lower than group III, IV(p<0.05) and there was no difference between group III, IV(p>0.05) at 48 hours. 2. The optical density of group IV was highest at 72 hours(p<0.05). 3. Mean lesion depths were 205.36±42.85 μm and 210.81±44.60 μm in group I, II but no significant difference between two groups(p>0.05). 4. Mean lesion depths were 80.03±21.66 μm and 77.46±27.72 μm in group III, IV but no significant difference between two groups(p>0.05). Fluoride varnish treatment resulted in a significant reduction in lesion depth compared with APF gel. Fluor Protector^® and CavityShield^TM provided the similar effect.

Key Words: Flouride varnish, APF gel, Enamel decalcification, Visible light fluorescence