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Enamel Fluoride Retention After Fluoride Gel Application, Pichian Anchanpen, Supathra Amatyakul, Siriporn Chotipaibulpan, Pratchya Habkongleg, Vorawat Pukjaroon

Chulalongkorn University Dental Journal

Objective To determine the enamel fluoride retention after application with fluoride gel. Materials and methods Fourteen subjects, aged between 20-22 years old, were included. The buccal enamel biopsies were conducted on the middle buccal surfaces of the upper premolar before and at 30 minutes, 2, 4 and 8 weeks after 1.23% acidulated phosphate fluoride application. Fluoride concentration of the etching solution was determined using a fluoride electrode. Calcium concentration was evaluated by an atomic absorption spectrophotometer. The data were analyzed by Wilcoxon Signed Rank test and Friedman test at significant level .05. Results The baseline value of enamel fluoride content …