REMINERALIZATION EFFECT OF SODIUM FLUORIDE VARNISH ON WHITE LESION BY APPLICATION INTERVALS

Lee, Eun-Hui; Kim, Jong-Soo; Yoo, Seung-Hoon

Journal of the Korean Academy of Pediatric Dentistry 2010;37(4):403-411.
Published online November 30, 2010.

REMINERALIZATION EFFECT OF SODIUM FLUORIDE VARNISH ON WHITE LESION BY APPLICATION INTERVALS

Eun-Hui Lee, Jong-Soo Kim, Seung-Hoon Yoo

Department of Pediatric Dentistry, Dental College, Dankook University

불화나트륨 바니쉬의 도포 주기에 따른 백색 병소의 재광화 효과

이은희, 김종수, 유승훈

단국대학교 치과대학 소아치과학교실

Correspondence: Jong-Soo Kim, Tel: 041-550-1931, Email: jskim@dku.edu

Received: 15 July 2010 • Accepted: 11 November 2010

Abstract

This study is about the treatment effect of fluoride varnish on white lesion. The changes in microhardness values and lesion sizes were compared and analyzed in relation to application interval, frequency, etc. Resin blocks were fabricated with the crown portion of permanent molars. Samples were classified into group I(1 week), group II(2 weeks) and group III(3 weeks) based on fluoride application intervals, each with 15 samples. Samples were soaked into a decalcifying solution for 15 days, and stored in artificial saliva at $37^{\circ}C$ 수식 이미지 thermostat. The changes in microhardness values and lesion sizes, before/after decalcification and after fluoride application, were evaluated. The following results were obtained. 1. Microhardness values in group II and III exhibited almost twice the increasing rate than group I. There were significant differences between group I and II, and group I and III (p<0.05), but none between group II and III (p>0.05). 2. Change in lesion sizes showed no significant differences between group I and II, III (p>0.05). In conclusion, fluoride varnish application results in both qualitative and quantitative improvements in white lesions. The satisfactory results can be obtained when varnish is applied at more than 2 weeks interval.

Key Words: NaF varnish, White lesion, Remineralization