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Evaluation of Fluoride Uptake in the Enamel of Primary Teeth After Using Different Concentrations of a Green Tea Extract: An In-Vitro Study



Mohammadi F1 ; Horri A2 ; Poureslami P3 ; Poureslami H4 ; Mahvi AH5 ; Jalali F1
Authors
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Authors Affiliations
  1. 1. Department of Pediatric Dentistry, Faculty of Dentistry, Kerman University of Medical Sciences, Kerman, Iran
  2. 2. Department of Pediatric Dentistry, Faculty of Dentistry, Kerman University of Medical Science, Kerman, Iran
  3. 3. Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
  4. 4. Kerman Social Determinants on Oral Health Research Center & Oral and Dental Diseases Research Center & Department of Pediatric Dentistry, Faculty of Dentistry, Kerman University of Medical Science, Kerman, Iran
  5. 5. Center for Solid Waste Research (CSWR), Institute for Environmental Research, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Source: Fluoride Published:2020

Abstract

It is believed that extracts of green tea increase fluoride uptake in deciduous enamel and the aim of this in vitro study was to evaluate the fluoride uptake in the enamel of primary teeth after using different concentrations of an extract of green tea. Seventy-five enamel samples were prepared from deciduous canine teeth of children in Kerman, Iran, and randomly divided into five groups of 15: Group 1 (G1): no treatment (negative control); Groups 2 (G2), 3 (G3), 4 (G4), and 5 (G5) were treated with green tea extract in concentrations of 0.2%, 1%, 2%, and 10%, respectively. After the surface treatment, all the samples were submitted to an acid challenge consisting of daily immersion for 5 days in a demineralizing (3 hr) and a mineralizing solution (21 hr). The fluoride concentrations were then calculated with a potentiometer. One-way ANOVA was used for statistical analyses (p<0.05). There was a significant difference between the fluoride uptake in the control and all other groups except for the G2 group (0.2% green tea extract) (p<0.05). There was no statistically significant difference between the fluoride uptake in the enamel in the G2 (0.2% green tea extract and the G3 (1% green tea extract) groups. The findings reveal that green tea can increase the amount of fluoride in the enamel of the primary teeth. © 2020, International Society for Fluoride Research. All rights reserved.
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