Effect of Polishing System on Surface Roughness of Composite Resins

doi:10.13701/j.cnki.kqyxyj.2023.06.015

Abstract

Abstract: Objective: To examine the surface roughness of composite resins treated by different polishing systems. Methods: A total of 120 composites resin samples (5 mm×4 mm) were prepared including Filtek Z350, Filtek P60, Ceram-X mono, Quixfil, Synergy Duo Shade, and Synergy compact. They were polished with Sof-Lex discs (S), PoGo cups (PG), and Brilliant Golss cups (BG). The surface roughness parameters (RMS) of composite samples were measured by atomic force microscopy (AFM) and analyzed statistically. Results: For dry polishing, S + Synergy Duo Shade showed the lowest RMS value; PG + Quixfil showed the highest value. There was no significant difference in RMS for the same resin using different polishing methods, and a two-way comparison between groups showed that the polishing effect of CeramX was better for S than for PG (P<0.05). Nanofill and hybrid resin showed smoother surfaces compared to the packable resin after the same polishing methods. The dry polishing method showed a better effect when PG polishing Quxifil/CeramX and BG polishing Synergy Duo Shade (P<0.05).Conclusion: There is no significant difference in surface roughness when different polishing methods are used for the same resin. The RMS of packable composite resin is higher than others for the same polishing method. Some resins show better effects in dry polishing method.

Key words: surface roughness, composite resins, polishing

ZHENG Hongxia, HUANG Xinyue, CHEN Zhi. Effect of Polishing System on Surface Roughness of Composite Resins[J]. Journal of Oral Science Research, 2023, 39(6): 547-552.

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