Abstract
To establish the most efficient polishing technique for composite resins, four kinds of silicone cup hards were experimentally designed, and the surface texture of two semihybrid composite resins polished with these experimental polishing tools were examined using a surface roughness recorder and by SEM. The individual silicone cup hard consisted of a hard rubber and silicone carbide abrasive particles being sized into #180 (P0), #360 (P2), #600 (P3), and #2500 (P4), respectively. Combination polishing with both P3 and P4, as well as from P0 through P4 in this order, efficiently created the smoothest surfaces for the semihybrid composite resins, which are generally considered to be hard to polish in the routine clinic.
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