タイトル無し

概要

論文の詳細を見る
In vivo enamel solubility rate in a single adult was studied by measuring the dissolved calcium from the labial or buccal enamel surface after application of a cellulose acetate membrane (φ: 3mm) with a soidum acetate- hydrochloric acid buffer (1.4 M acetic acid, pH 2.3) 2μl. The effect of the acquired pellicle on the enamel solubility rate was also studied by comparing the values before polishing, just after polishing and two hrs after polishing. The following results were obtained. 1) The enamel solubility rate pattern in the upper and lower dentition was exactly the same as that of two years ago; the value was highest in the molars and lowest in the incisors. The premolars and the canines showed a value intermediate between the molar and the incisor. 2) Although the enamel solubility rate was significantly higher for the polished teeth, the pattern showed little changs. 3) A relationship in enamel solubility rate value between right homogous teeth was found whether teeth were polished or not. 4) Enamel solubility rate just after polishing decreased when the teeth were exposed to the oral environment for two hrs, probably because of the acquired pellicle. It was concluded that the enamel solubility rate pattern in the upper and lower dentition is little influenced by tooth surface pollshing, but solubility is rate reduced by the acquired pellicle.
有限責任中間法人日本口腔衛生学会の論文