대한소아치과학회지 (Journal of the korean academy of Pediatric Dentistry)

  • 제36권2호
  • /
  • Pages.227-236
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  • 2009
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  • 1226-8496(pISSN)
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  • 2288-3819(eISSN)
대한소아치과학회 (Korean Academy of Pediatric Dentistry)
권호 표지

어린이 음료수에 의한 유치 법랑질 침식에 대한 연구

STUDY ON THE PRIMARY TOOTH ENAMEL EROSION CAUSED BY CHILDREN BEVERAGE

  • 신윤혜 (서울대학교 치과대학 소아치과학교실) ;
  • 김영재 (서울대학교 치과대학 소아치과학교실 및 치학연구소)
  • Shin, Yun-Hye (Department of Pediatric Dentistry, School of Dentistry, Seoul National University) ;
  • Kim, Young-Jae (Department of Pediatric Dentistry, School of Dentistry, Dental Research Institute, Seoul National University)
  • 발행 : 2009.05.30
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초록

본 연구의 목적은 시중 어린이 음료의 산성도를 조사하고, 수 종 어린이 음료에 의한 유치 법랑질 침식정도를 실험적으로 평가하는 것이었다. 서울 시내 및 경기도 지역에서 판매순위가 비교적 높은 수 종의 어린이 음료를 표집하여 pH를 측정하고, 그 중에서도 pH 3.5 이하의 어린이 음료 7개를 선별하였다. 탈락기의 건전한 법랑질 표면을 가진 유치를, 어린이 음료에 1분, 5 분, 10 분, 15 분, 30 분 동안 노출시켜 인공적으로 법랑질 침식을 유도하였을 때 나타나는 양상을 표면미세경도측정법으로 분석하여 다음과 같은 결론을 얻었다. 1. 본 연구에서 조사한 시중 어린이 음료의 대부분은 치아 침식을 유발할 수 있는 산성도인 pH 5.5 이하의 산성도를 갖고 있었다. 2. 어린이 음료에 대한 노출 후의 법랑질 표면미세경도는 대조군에 비해 모든 시료에서 낮아졌다(p<0.05). 노출 후 1 분이 경과되었을 때부터 표면미세경도의 유의한 감소 양상을 보였으며. 30 분이 경과되었을 때까지 표면미세경도의 감소가 계속 관찰되었다(p<0.05). 3. 음료의 산성도가 높을수록, 시편을 30 분간 노출시켰을 때의 표면미세경도가 유의하게 감소했다(p<0.05). 그러나 음료의 산성도와 표면미세경도의 감소정도 사이에 유의한 비례관계는 찾을 수 없었다(p>0.05).

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.

키워드

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