• Hathaichanok Sukasame
• Muratha Panich
• Suchit Poolthong

Objective  The present study was to compare hardness of enamel, eroded enamel by a Cola drink and remineralized enamel by casein phosphopeptide - amorphous calcium phosphate (CPP-ACP) and to compare remineralization effect of CPP-ACP to that of artificial saliva

Materials and methods  The specimens were prepared from 11 extracted human premolars, separated in 4 groups to be applied and soked in 1) CPP - ACP 2) artificial saliva 3) CPP - ACP with artificial saliva and 4) deionized water. The Vickers hardness was measured at cutting surface 200 microns away from outer surface. Baseline, eroded and after experiment hardness were measured and analyzed with Paired - Sample T - Test and One Way ANOVA.

Results  The Cola drink significaltly decreased enamel hardness, while CPP - ACP, artificial saliva and CPP - ACP with artificial saliva significantly increased hardness of eroded enamel. CPP - ACP and CPP - ACP with artificial saliva promoted significantly increase hardness of eroded enamel than that of artificial saliva.

Conclusion  CPP - ACP increased hardness of eroded enamel, and CPP - ACP showed grater effect than artificial saliva.

(CU Dent J. 2006;29:183-194)