Evaluation of Anticaries Efficacy of Various Fluoride Varnishes on Artificial Enamel Lesion: An In Vitro Study

AIMAim of the current study was to assess the anticariogenic effectiveness of different fluoride varnishes on artificially induced enamel lesions employing scanning electron microscope. MATERIALS AND METHODSEighty healthy, normal premolars without dental caries that were extracted in course of orthodontic therapy with all the surfaces intact were included in this study. A window, 4 × 4 mm, was made discernible on the buccal surface of each sample tooth. A demineralizing solution at 37°C was used to immerse the teeth for 48 hours to induce artificial lesions on the surface of the enamel. Following preparation of the artificial enamel lesions, the 80 premolar teeth were allocated into the four groups (20 each) depending on the fluoride varnish system used as Group I: control, Group II: Duraphat varnish, Group III: MI Varnish, and Group IV: Clinpro White Varnish. The anticariogenic effectiveness of different fluoride varnishes was evaluated employing a scanning electron microscope (SEM). RESULTSThe MI Varnish (fluoride varnish) group exhibited slightly greater (127.20 ±0.14) mean demineralized lesions, pursued by Clinpro White Varnish use (126.88 ±0.09), the control group (126.36 ±0.10) and the Duraphat varnish (124.14 ±0.08) in that order. Greater mean areas of remineralization were found with use of MI Varnish (92.40 ±0.09), pursued by the Duraphat varnish use (106.68 ±0.12), use of Clinpro White Varnish (112.36 ±0.08), and then the control group (123.08 ±0.18) in that order. Statistically significant differences were noted between the experimental groups employing the various fluoride varnishes (p