Effect of Different Topical Fluoride on the Surface Roughness of Glass Ionomer Cement

Abstract

Objective: To evaluate the effect of acidulated phosphate fluoride (APF) gel and sodium fluoride (NaF) gel on the surface roughness of glass ionomer cements. Methods:Twenty disc-shaped samples were fabricated from glass ionomer cement (Fuji II, GC Gold Label, Japan) and divided into two test groups that is group I for acidulated phosphate fluoride (APF) gel application and group II for sodium fluoride (NaF) gel application. After 24 hours, the surface roughness (Ra) was determined using a profilometer (MarSurf M300, Germany). Samples surface were applied by topical fluoride gel according test group for 4 minutes. After the treatment, the surface roughness (Ra) was determined using a profilometer. T test was used to evaluate surface roughness measurement and the differences in surface roughness values between test groups.Results: Acidulated phosphate fluoride gel group showed the highest surface roughness than sodium fluoride group. There were significant differences between test groups (p = 0.00). Conclusion:Acidulated phosphate fluoride gel can cause surface roughness on the glass ionomer cement more than sodium fluoride gel.