Surface Roughness of Nanohybrid Composites with Different Monomers after Finishing and Polishing with Different Polishing Systems
| Autor: | Youssef Alaa Soliman, ELsayed Moustafa Mahmoud, Rania Reda Afifi, Mohammed A. Gepreel |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Atomic force microscopy Mechanical Engineering 0211 other engineering and technologies Polishing 030206 dentistry 02 engineering and technology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Monomer chemistry Mechanics of Materials 021105 building & construction Surface roughness General Materials Science Low shrinkage Composite material |
| Zdroj: | Key Engineering Materials. 835:41-49 |
| ISSN: | 1662-9795 |
| Popis: | Background: The most frequently used monomer in commercial composite resins is bisphenol A glycidyl dimethacrylate. Bisphenol A glycidyl dimethacrylate free monomer and the long chain dimer acid based monomer were considered as an alternative method to improve mechanical and physical properties of composite resins. Objective: To study the surface roughness of different nanohybrid composites with different monomer compositions after finishing and polishing with different polishing systems. Materials and Methods: 72 composite disk specimens were prepared and divided into 3 groups (n=24) according to the resin composite that were used (harmonizekerr,venusdiamondheraeuskulzerandn'duranceseptodont). Each group was subdivided into 4 subgroups (n=6) according to the polishing technique that was used (Jiffy natural universalwheelsultradent,sof-lexspiral wheels 3mespe,hilusterkerrorenhance systemdentsply). Atomic force microscope was used to measure surface roughness. Results: There was statistical significant difference in surface roughness measuring among differentn'durance,venusdiamondandharmonizegroups (Kruskal Wallis Test pvenusdiamondshowed statistically significant higher surface roughness when compared with eithern'duranceandharmonize. Among the polishing systems,jiffynaturaluniversalwheelsproduce the least surface roughness. Conclusion: Different monomer compositions may have direct effect on the final surface polish of the restorative materials. Clinical significance: The use ofjiffy natural universalwheelsmay be found to result in the smoothest surface finish with the least clinical steps. |
| Databáze: | OpenAIRE |
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