IN VITRO EVALUATION OF EXPERIMENTAL FLUORIDE TAPE IN INHIBITION OF ENAMEL DEMINERALIZATION

Kim, Min-Jung; Lee, Sang-Ho; Lee, Nan-Young; Park, Seung-Hyo

Journal of the Korean Academy of Pediatric Dentistry 2012;39(2):129-138.
Published online May 31, 2012.

IN VITRO EVALUATION OF EXPERIMENTAL FLUORIDE TAPE IN INHIBITION OF ENAMEL DEMINERALIZATION

Min-Jung Kim, Sang-Ho Lee, Nan-Young Lee, Seung-Hyo Park

Department of Pediatric Dentistry, Graduate School of Dentistry, Chosun University

불소 테이프의 법랑질 탈회 억제 효과에 관한 실험적 평가

김민정, 이상호, 이난영, 박승효

조선대학교 치의학전문대학원 소아치과학교실

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

Received: 6 February 2012 • Accepted: 10 May 2012

Abstract

The aim of this in vitro study was to evaluate the effectiveness of experimental 2.26% fluoride-polyvinyl alcohol (F-PVA) tape in inhibition of enamel demineralization using enamel surface microhardness (SMH) analysis and scanning electron microscopy (SEM) examination. Enamel specimens (n=60) randomly assigned to four groups: control group, F-PVA tape group, fluoride varinish (F-varnish) group, casein phosphopeptide-amorphous calcium phosphate (CPP-ACFP) group. After topical application, pH-cycling was processed. Then, SMH was measured and the percentage loss of surface microhardness (%SML) was calculated. For the SEM examination, five sample specimens in each group were treated and the morphologic character was evaluated. After pH-cycling, the SMH values of the enamel specimens of F-PVA tape and F-varnish group were significantly higher than that of CPP-ACFP group, there was no significant difference between F-PVA tape and Fvarnish group. With SEM examination, enamel surfaces in the F-PVA tape group and F-varnish group showed numerous spherical and ovoid crystals formed on the enamel surface were also observed. The density of crystals was higher than that of both control group and CPP-ACFP group. F-PVA tape is effective in inhibition of enamel demineralization. Also, F-PVA tape's inhibition of enamel demineralization is comparable to that of F-vanish and greater than that of CPP-ACFP.

Key Words: Fluoride tape, PVA tape, Enamel demineralization