공초점레이저주사현미경을 이용한 일부 시판음료에 의한 정상법 랑질의 치아부식도 평가
Evaluation of dental erosion caused by some beverages on sound enamel using confocal Laser scanning microscopy
윤혜정, 홍석진, 정성숙, 정은주, 하명옥, 박영남,
소속 상세정보
윤혜정 ( Youn Hye-Jeong ) - 수원여자대학 치위생과
홍석진 ( Hong Suk-Jin ) - 전남대학교 치의학전문대학원 예방치과학교실
정성숙 ( Jeong Seong-Soog ) - 전남대학교 치의학전문대학원 예방치과학교실
정은주 ( Jung Eun-Ju ) - 청암대학 치위생과
하명옥 ( Ha Myung-Ok ) - 광주보건대학교 치위생과
박영남 ( Park Young-Nam ) - 전북과학대학 치위생과
KMID : 0355420110350030243
Abstract
Objectives: The purpose of this study was to evaluate the effect of dental erosion by some commercial beverages on sound enamel of bovine teeth using confocal laser scanning microscopy (CLSM).
Methods: Three experimental groups (mixed beverage, carbonated flavored, and fruit juice) and one control group (natural mineral water) were established for this study. Each group consisted of 11 specimens obtained from bovine teeth. The concentration, pH level, fluoride, Ca and P of beverages were measured. Specimens were immersed in artificial saliva, except beverage treatment for day 8, and surface microhardness and lesion depth were measured.
Results: The pH level of the four beverages was in the range of 2.39∼7.60. The concentration levels of fluoride, Ca and P were in the range of 0.03∼0.16 ppm, 1.67∼9.07 mg per 100 gm, and 0∼3.73 mg per 100 gm, respectively. The differences in surface microhardness (VHN) before and after the 8 day treatment were significant among the four groups for sound enamel. Lesion depths after the 8 day treatment on sound enamel by CLSM decreased significantly in of the following order: mixed beverage,carbonated flavored, fruit juice and natural mineral water (p＜0.01). Lesion depths by CLSM correlated with surface microhardness
using the surface hardness test on sound enamel (r=?0.920).
Conclusions: In this study, beverages with rich Ca and low pH showed lower VHN and lesion depth. Thus, we propose that low pH beverages with rich Ca may reduce the extent of dental erosion on sound enamel.
키워드
공초점레이저주사현미경; 음료; 정상법랑질; 치아부식
beverage; confocal Laser scanning microscopy; dental erosion; sound enamel
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