| STUDY ON THE PRIMARY TOOTH ENAMEL EROSION CAUSED BY CHILDREN BEVERAGE |
1서울대학교 치과대학 소아치과학교실
2서울대학교 치과대학 소아치과학교실 및 치학연구소 |
| 어린이 음료수에 의한 유치 법랑질 침식에 대한 연구 |
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신윤혜1, 김영재2 |
1서울대학교 치과대학 소아치과학교실
2서울대학교 치과대학 소아치과학교실 및 치학연구소 |
Correspondence:
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Received: 30 July 2008 • Accepted: 28 February 2009 |
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| Abstract |
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The purpose of this study is to examine the acidity of beverages that are sold for children in the market and to estimate by experiment the degree of the enamel erosion of deciduous teeth that is attributed to the beverages. The pH value of children beverages among top sale list in Seoul and Gyeonggi province were measured. And 7 beverages with the pH value of 3.5 or lower were selected. The enamel erosion of deciduous teeth by the children beverages for 1, 5, 10, and 30 minutes respectively was examined. The results were as follows: 1. The acidity of most of the children beverages examined in this study was the pH level of 5.5 or lower that can cause the tooth erosion. 2. The microhardness value of the enamel of deciduous teeth was lower as exposing it to children beverages. The reduction of surface microhardness value was significant from 1 minute after the exposure, and the reduction was continuously observed until 30 minutes has passed. 3. The higher the acidity of beverages, the larger the reduction in microhardness value caused after the exposure of 30 minutes to the beverages. There was no significant relation between the acidity of beverages and the reduction rate of surface microhardness value. The other factors such as calcium, phosphorus, and fluorine or buffering of the beverages may affect the enamel erosion. |
| Key Words:
Enamel erosion; Primary tooth, Children beverage, Acidity, Surface microhardness |
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