MARIA BOLAT, SIMONA STOLERIU, GIANINA IOVAN, GALINA PANCU, NICOLETA TOFAN, ANDREI VICTOR SANDU, SORIN ANDRIAN COMPARATIVE EVALUATION OF THE EFFECT OF SURFACE POLISHING OF A GLAZE/COMPOSITE SEALANT AND DIFFERENT POLISHING SYSTEMS ON SURFACE ROUGHNESS OF THREE COMPOSITE RESIN TYPE The aim of the study was to evaluate the influence of different techniques of finishing and polishing as well as the use of sealants on the surface condition of some composite resins used in the dental office. 80 specimens of composite materials (Nanoceramic, Nanocomposit and Nanohybrid) were made and divided into 3 groups G1-coated composite with sealant lacquer, G2 - finished in 2 stages, and G3 - finished in 3 stages. Roughness (Ra) was determined with the Taylor Hobson Form Talysurf Profiometer. The data was analyzed using one-way ANOVA followed by a multiple comparison t test. Significant differences were found between the groups in terms roughness (p < 0.001). The results showed that Seal – and - Shine (PULPDENT) was capable of reducing surface roughness and provided polished surfaces for all materials.