The effect of CPP-ACP paste on the surface hardness of glass ionomer cement when immersed in orange juice

Abstract

This study aims to identify the effect of CPP-ACP paste on the surface hardness of glass ionomer cement (GIC) when immersed in orange juice. Eighteen specimens of Fuji IX GIC were divided into three groups: no CPP-ACP added (group A); CPP-ACP applied for three minutes (group B); and CPP-ACP applied for 30 minutes (group C). Specimens were immersed in orange juice and tested for surface hardness using a Vickers hardness tester. Data were analyzed using the one-way ANOVA (p = <0.05). Group A resulted in a 31.77 ± 0.77 Vickers Hardness Number (VHN), group B in a 42.97 ± 1.08 VHN, and group C in a 51.92 ± 0.27 VHN. It was concluded that application of CPP-ACP paste for 30 minutes is effective in preventing a decrease in the surface hardness of GIC due to orange juice consumption.