| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|
|---|
| Outline of Final Research Achievements |
The mineral solubility of coronal enamel and root dentin were evaluated using a model of tooth/bacteria interface. The pH changes at the interface were measured by a miniature ion-sensitive field-effect transistor pH electrode and the amounts of calcium dissolved from tooth surfaces were measured by a fluorescent dye. As a result, it was suggested that root dentin is more soluble to the bacteria-induced acidification than coronal enamel, and that the minerals dissolved from tooth surfaces could raise pH at the tooth/bacteria interface. The method employed in the present study could be useful for evaluating the caries-preventive effects on tooth surface treatment.
|
