Microleakage of the smooth surface and proximal surface using SEM and three-dimensional reconstruction techniques

I. Objectives This study was done to evaluate whether or not there are any differences in microleakage of the class 5 composite restoration that were filled at the smooth surface and the proximal surface respectively. In addition any differences between small and large-sized restoration were also studied. II. Materials and Methods Total sixty-four class 5 resin restorations, sixteen per group, were made in the permanent teeth. Two-sized cavities, small ($2{\;}{\times}{\;}2{\;}{\times}{\;}1.5{\;}mm$) and large ($4{\;}{\times}{\;}2{\;}{\times}{\;}1.5{\;}mm$), were filled at the smooth surface and the proximal surface each.(omitted)