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논문 기본 정보

자료유형
학술저널
저자정보
선수윤 (전남대학교 치의학전문대학원 예방치과학교실) 윤인경 (전남대학교 치의학전문대학원 예방치과학교실) 김지은 (전남대학교 치의학전문대학원 예방치과학교실) 정성숙 (전남대학교 치의학전문대학원 예방치과학교실 & 치의학연구소) 최충호 (전남대 치의학전문대학원 예방의학교실&치의학연구소)
저널정보
대한예방치과·구강보건학회 대한구강보건학회지 대한구강보건학회지 제42권 제4호
발행연도
2018.12
수록면
118 - 123 (6page)
DOI
https://doi.org/10.11149/jkaoh.2018.42.4.118

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Objective: This study aimed to investigate the effects of fluoride-containing acidic tea beverages on bovineteeth surfaces. Methods: The pH values and fluoride concentrations of 11 kinds of mineral water and 23 kinds of teawere measured. The fluoride-containing Seopyenje black tea beverages with pH 3.48 were chosen forthe experimental group. Distilled water that did not contain fluoride and had the same pH value as thatof the Seopyenje black teas served as the positive control. The Jeju Samdasoo mineral waters with neuralpH (pH 7.52) and no fluoride were chosen as the negative control. Bovine teeth in each group weresubmerged for 10 minutes. Thereafter, surface microhardness of each bovine teeth was measured andthe results were analyzed. Results: The pH value range was 6.94-8.09 (mean=7.37±0.08) for the 11 kinds of mineral water and3.48-6.74 (5.62±0.05) for the 23 tea beverages. Titratable acidity of the Seopyenje black tea beverageswas higher than that of the distilled water mixed with citric acid, and the pH was 5.5 and 7.0, respectively. The fluoride content of the 11 kinds of mineral water was 0-1.09 ppm (mean=0.44±0.02 ppm)that of the 23 tea beverages was and 0-0.74 ppm (0.64±0.06 ppm). In terms of enamel microhardnessreduction of the bovine teeth, the tea beverages had the largest effects. There was no significant differencein microhardness reduction between the tea beverages and distilled water mixed with citric acid(P>0.05). Conversely, a significant difference was found between the kinds of mineral water and teabeverages, and also between mineral water and distilled water mixed with citric acid (P<0.05). Conclusions: Acidic tea beverages appeared to erode the surfaces of bovine teeth. The amount offluoride in the tea beverages was not enough to inhibit erosion. Therefore, frequent intakes of acidic teabeverage are likely to increase erosion on the surfaces of bovine teeth, by affecting the enamel microhardnessof teeth.

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