A STUDY ON THE ENAMEL EROSION CAUSED BY ORANGE JUICES

,; ,; ,

Journal of the Korean Academy of Pediatric Dentistry 2004;31(4):617-623.
Published online November 30, 2004.

A STUDY ON THE ENAMEL EROSION CAUSED BY ORANGE JUICES

오렌지쥬스의 치아 법랑질 침식효과에 대한 연구

이창윤, 정태성, 김신

부산대학교 치과대학 소아치과학교실

Correspondence: ,

Abstract

Acidic drink has been known as a cause of tooth erosion. The purpose of this study is to verify the acid levels of orange juices in market and evaluate the erosion effects on the enamel of deciduous teeth by orange juices in relatively short period of time. With four kinds of orange juice selected from market, pH, buffering capacity and concentration of Ca and P ion were measured. And forty segments of normal enamel of deciduous incisors were divided into four groups and level of erosion was measured by surface hardness test before and after soaking at 50ml of orange juice for 10 minutes. The results of this study showed that the average pH of orange juices was 4.0 and this pH value was so acidic as to cause the tooth erosion. There were differences in small quantity for each group of teeth, however, the result was statistically so significant that orange juices can cause enamel erosion in relatively short period of time.

Key Words: Dental erosion, Orange juice, pH, Buffer effect, Inorganic ions