수종시판 청량음료가 법랑질 표면에 미치는 영향

• Published in: Chiwisaeng gwahakoeji Vol. 10; no. 6; pp. 451 - 457
• Main Authors: 안용순, 김은하, 민지혜, 민수지, 박현숙, 서시내, 이선민, 이지은, 박미애, 한금아, 홍주희, 임도선, Ahn, Yong-Soon, Kim, Eun-Ha, Min, Ji-Hye, Min, Su-Ji, Park, Hyun-Sook, Seo, Si-Nae, Lee, Sun-Min, Lee, Ji-Eun, Park, Mi-Ae, Han, Keum-A, Hong, Ju-Hee, Lim, Do-Seon
• Format: Journal Article
• Language: Korean
• Published: 한국치위생과학회 01.12.2010
• Subjects: 치의학; Beverage; Enamel surface; Demineralization
• ISSN: 1598-4478; 2233-7679

It is well known that most of the beverages on sale contain acid. Among these beverages, one of the most typically purchased products is Coca-Cola ($Coke^{(R)}$), which affects the demineralization of the tooth enamel surface. However other beverages also affect the erosion of the tooth enamel surface. Therefore, the aim of this study was to observe the influence that acid containing beverages have upon the tooth enamel surface. In this study, 30 enamel specimens were obtained from extracted maxillary third molars without cracks. The study measured the pH concentrations and the Ca and P concentration levels of the acidic beverages. The control without exposure was kept in distilled water, and each enamel specimen was stored for 30-min, 60-min, and 120-min. The erosion effect of the enamel surface was observed by SEM. The results obtained from this study can be summarized as follows: 1. The pH concentration of acidic beverages, without milk, was 3.105 on average. The beverages eroded the enamel surface and the erosion degree was determined by the pH concentration of beverages. 2. The erosion degree significantly increased by as the exposure time increased. The difference in the erosion degree between the 30-min group and the 60-min and the 120-min group was significant, but the erosion degree of the 120-min group was significantly less than that of the initial group. 3. When compared with the beverages containing similar pH concentrations, the demineralization degree of the beverages containing higher concentrations of Ca and P was lower. 본 연구는 건전한 상악 제 3대구치 법랑질을 1군:콜라(pH 2.39), 2군:박카스(pH 2.69), 3군:요구르트(pH 3.49), 4군:오렌지쥬스(pH 3.85), 5군:우유(pH 6.64)에 30분, 60분, 120분간 노출시킨 후 주사전자현미경으로 관찰하여 다음과 같은 결론을 얻었다. 1. 대조군과 우유를 제외한 4종 음료의 pH는 평균 3.105로서 치아 표면의 법랑질 탈회를 유발시키기 충분한 수준이었고, 대부분의 시료에서 탈회 현상을 관찰할 수 있었다. 2. 산성음료에 노출되는 시간에 따른 법랑질 탈회 정도가 다르게 나타났다. 30분 동안 노출된 치아보다 60분, 120분 동안 노출된 치아에서 법랑질 탈회가 심하게 나타났고, 60분과 120분 시료의 차이는 크지 않았다. 3. 칼슘과 인의 함유량이 많은 제품에서는 유사한 pH를 갖는 음료와 비교해 볼 때, 법랑질표면의 탈회 정도가 덜 하였다.