시판 과자류가 유치표면 법랑질 침식에 미치는 영향에 관한 주사 전자현미경학적 연구

STUDY WITH SCANNING ELECTRON MICROSCOPE ON THE EFFECTS OF BISCUIT SOLUTION DISSOLVED IN NATURAL SALIVA ON THE ENAMEL SURFACE OF PRIMARY TEETH

Author have studied with electron microscope on the effect of biscuit solution dissolved in natural saliva on the enamel surface of the primary teeth. Four of the teeth were natural primary teeth and the other four teeth were treated in acidulated phosphate fluoride during four minute. The obtained results were as follows; 1. The pH value of the solution was decreased according to the time passed, and gradually became 3.75 at the end of 48 hours. 2. Natural teeth appeared normal enamel surface appearance during first 12 hours, and at 24 hours, it appeared some degree of decalcified appearance near the enamel rods and surfaces. 3. The decalcified appearances of the enamel surfaces of the fluoride treated teeth were not significant compared with the fluoride untreated teeth. 4. Streptococci of the enamel surface were increased according to the time passed.