Article information
Year 2018 Volume 68 Issue 4 Page 420-427
Title:
Effect of Xylitol Varnish on Enamel Erosion In Vitro
Keyword(s):
Demineralization, Dental Erosion, Fluoride varnish, Soft drinks, Xylitol varnish
Abstract:
The aim of this study was to compare the property of two different concentrations of xylitol varnish and
fluoride varnish on enamel erosion from soft drink. Enamel specimens were prepared from 25 human premolars.
The teeth were sectioned mesial-distally to obtain buccal and lingual halves. The buccal and lingual surfaces were
polished to obtain flat enamel surfaces 3 millimeters in diameter. Nail varnish was applied to the polished surface
except for the test area. The specimens were randomly divided into following treatments (n=10): Group 1 - negative
control, Group 2 - fluoride varnish, Group 3 – 20 % xylitol varnish, Group 4 – 30 % xylitol varnish and Group 5 - placebo varnish. The varnishes were applied to enamel surfaces before demineralization and on the fifth day of
demineralization. Then, the specimens were demineralized by immersion in soft drink for five minutes for ten days.
Enamel volume loss was measured by contact profilometer. The data were analyzed statistically using One-way
ANOVA and Tukey’s post-hoc test with the level of significance at p<0.05. The mean enamel volume losses (cubic
millimeters) were not significantly different in the negative control group (0.0121±0.0019) and the placebo varnish
group (0.0117±0.0015). The mean enamel volume loss of the 20 % xylitol varnish group (0.0084±0.0004) showed
more volume loss than the fluoride varnish group (0.0070±0.0007) with no statistically significant difference. The 30 %
xylitol varnish group showed the lowest mean enamel volume loss (0.0055±0.0005) with statistically significant
when compared to other groups. From the result of this study, 20 % xylitol varnish and fluoride varnish showed no
significantly difference in reducing enamel erosion by soft drink. Whereas, 30 % xylitol varnish showed the highest
performance among all treatment groups.