Abstract
The aim of the present study was to compare the retention rate and caries-preventive efficiency of two types of sealing materials : a glass ionomer cement (Ionofil plus) and a nano-hybrid resin sealant ( Grandio Seal) over a 2-year period. 84.78% with resin composite sealings and 7.39% of the glassionomer sealings were fully retained. New caries lesions were found in 7.82% of the glass ionomer sealed surfaces and 5.65% of the resin sealed surfaces. It can be concluded that Ionofil plus and Grandio Seal exhibit similar caries preventive effects. Keywords: dental sealing; Ionofil plus; Grandio Seal; retention rate; caries outcome