Evaluation of Surface Roughness of Nano-Hybrid Composite Resins Comparing One-Step Polishing Systems Versus Multi-Step Polishing Systems versus Multi-Step Polishing Systems

Abstract

Aim:The purpose of this study was to compare the surface roughness of nano-hybrid composite polished by a multi-step polishing system versus one-step polishing systems.Materials and Methods: Sixty composite specimens were prepared using two brands of nano-hybrid composites, evenly. Within the two groups, the samples were further divided into three groups for three different polishing systems. All specimens were polished following the manufacturer's instructions and then subjected to a profilometer to evaluate surface roughness.Results: There was no difference using the same polishing system on the two different brands of nano-hybrid composites. The mean roughness scores of the composites were significantly less for the multi-step polishing kit than the one-step polishing systems. Conclusion:Multi-step polishing system showed the lowest surface roughness values, meanwhile the one-step polishing systems showed the highest surface roughness values. When using Nano-hybrid composites, the multi-step polishing system offered the best results compared to one-step polishing systems.