Variables affecting conventional glass ionomer cement surface roughness after exposure to Coca-Cola^®

This research investigated variables that may affect the surface roughness of conventional glass ionomer cement (GIC), including the immersion of specimens in Coca-Cola^®, applying CPPACP paste and then immersing in Coca-Cola^® directly or after 30 min, or immersing the specimens in Aqua Bidest (control group). Results showed that the surface roughness of conventional GIC increased significantly after immersion in Coca-Cola^®, whereas applying CPP-ACP paste and then immersing in Coca-Cola^® decreased the surface roughness of conventional GIC. Furthermore, the surface roughness of conventional GIC was significantly decreased after applying CPP-ACP paste and then immersing in Coca-Cola^® after 30 min. It was concluded that decreasing the surface roughness of conventional GIC was not significantly different after applying CPP-ACP paste when immersed in Coca-Cola^® immediately or after 30 min.