Original Research Article
Year: 2021 | Month: October | Volume: 11 | Issue: 10 | Pages: 272-279
DOI: https://doi.org/10.52403/ijhsr.20211036
Fluoride Release and Its Enamel Uptake from Different Fluoride Releasing Products
Wahdan M. A. El-kwatehy1, Rabab I. Salama2
1Department of Pediatric & Dental Public Health and Preventive Dentistry, Faculty of Dentistry, Mansoura University, Egypt and Faculty of Dentistry, Umm Al-Qura University, Saudi Arabia.
2Department of Pediatric & Dental Public Health and Preventive Dentistry, Faculty of Dentistry, Mansoura University, Egypt.
Corresponding Author: Wahdan M. A. El-kwatehy
ABSTRACT
Background: Professionally applied topical fluorides varnishes are used effectively to prevent dental caries.
Aim of the Work: The current study was designed to assess the rate of fluoride release from four fluoride products over 6 months' time period and determine the fluoride uptake by enamel.
Materials and Methods: An in vitro study was conducted on 60 extracted first premolars teeth classified randomly into four equal groups (15 teeth per group) according to the type of varnish used. The fluoride release was measured with Orion™ Fluoride Electrodes after one week, one month, three and six months and recorded as ppm. The fluoride uptake with enamel was evaluated under electron microscope after varnish application and 6 months later. Repeated ANOVA was used for comparison in each group for different time and one way ANOVA test for inter group comparison. Post hoc Tukey test and t test were used for paired group comparison.
Results: There were statistically significant differences regarding fluoride release among the four tested varnishes over the study follow up period (p less than 0.000 for all comparisons). The highest fluoride release occurs after application and gradually decreased with time. The total cumulative mean of fluoride released was higher among Enamel Seal and Varnish XT (51.85 and 51.57 ppm) followed by silver diamine fluoride (49.46 ppm) and FluoroDip (43.58 ppm). The enamel surfaces after varnishes application were smooth and nearly the same for the four applied varnishes but after 6 months all enamel surfaces appear porous with focal holes more observed in Enamel Seal and FluoroDip groups.
Conclusion: All tested fluoride varnish were releasing fluoride but each one has its own pattern. The sustainability of fluoride release from varnish XT and SDF was better than Enamel seal and FluoroDip varnishes.
Key words: Fluoride release, Enamel seal varnish, Varnish XT, Silver diamine fluoride, FluoroDip varnish, Scanning Electron Microscope.