불소 함유 및 낮은 pH의 구강 양치액이 초기우식법랑질 표면에 미치는 영향
분야
의약학 > 기초치의학
저자
최혜진 ( Hye Jin Choi ) , 이혜진 ( Hye Jin Lee ) , 정성숙 ( Seong Soog Jeong ) , 최충호 ( Choong Ho Choi ) , 홍석진 ( Suk Jin Hong )
발행기관
대한구강보건학회
간행물정보
대한구강보건학회지 2012년, 제36권 제3호, 161~166쪽(총6쪽)
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21101570.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    Objectives: The aim of the present study was to evaluate the effect of fluoride mouthrinse with low pH on the surface microhardness of artificial incipient carious enamel. Methods: Firstly, the concentration of sodium fluoride and pH values were measured in commercially available mouthrinse. Secondly, DOCTOR Clean & Fresh(R) (Jang In Pharm, co., LTD. KOREA) with 0.02% sodium fluoride and pH value below pH 4.0 was selected as the experimental group, 0.02% sodium as the positive control group and distilled water as the negative control group. Enamel samples of n vine teeth (n=36) were divided into the three groups respectively and treated with the mouthrinse solutions for 3 and 20 minutes. The surface microhardness (Vickers hardness number, VHN) was measured with microhardness tester before and after the treatments. Results: The average pH of DOCTOR Clean & Fresh(R) was 3.45±0.00, and it was acidic enough to cause tooth erosion. The difference of surface microhardness (ΔVHN) before and after the 20 minute treatment was statistically significant among the groups: DOCTOR Clean & Fresh(R) (12.77±2.25 ΔVHN), distilled water (0.24±0.75 ΔVHN), 0.02% sodium fluoride solution (―0.62±1.62 ΔVHN) (P<0.05). The DOCTOR Clean & Fresh(R) group with low pH showed greater changes on the surface microhardness of the carious enamel than those of other groups (P<0.05). Conclusions: It is suggested that the mouthrinse with low pH can reduce the surface microhardness of incipient carious enamel.
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