Effect of Finishing and Polishing on the Surface Roughness of Four Ceramic Materials after Occlusal Adjustment
| Autor: | Terence E. Donovan, Carolina Vera Resendiz, Lee Culp, Silvia P. Amaya-Pajares, André V. Ritter, Brett R. Henson |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering drawing
Materials science Atomic force microscopy Polishing 030206 dentistry 02 engineering and technology 021001 nanoscience & nanotechnology 03 medical and health sciences 0302 clinical medicine Dental porcelain visual_art Surface roughness visual_art.visual_art_medium Cubic zirconia Profilometer Ceramic Composite material 0210 nano-technology General Dentistry Occlusal Adjustment |
| Zdroj: | Journal of Esthetic and Restorative Dentistry. 28:382-396 |
| ISSN: | 1496-4155 |
| Popis: | Problem Intraoral occlusal adjustment of ceramic restorations can create a significant increase in surface roughness that can produce wear of the opposing dentition. Purpose To compare the surface roughness of glazed and polished monolithic ceramics with the surface roughness produced by different intraoral polishing systems on adjusted monolithic ceramics. Materials and Methods Milled ceramic discs (10 mm diameter × 2 mm thickness) were manufactured and distributed according to the following groups (n = 10): BruxZir (glazed and polished), Zenostar (glazed and polished), IPS Empress CAD, and IPS e.max CAD. Surface roughness, expressed as arithmetic average height (Ra), was measured using atomic force microscope and profilometer before and after adjustment and polishing with the following intraoral polishing systems: BruxZir and Dialite ZR (for BruxZir), Zenostar and Dialite ZR (for Zenostar), and OptraFine and Dialite LD for IPS Empress CAD and IPS e.max CAD. Mean and standard error for each material and polishing system were calculated. T-test, one-way ANOVA, and Bonferroni post hoc tests were used to analyze data. Results BruxZir zirconia presented smoother surfaces with Dialite ZR system compared to BruxZir system, Zenostar zirconia shown smoother surfaces with Zenostar system compared to Dialite ZR system and IPS Empress CAD and IPS e.max CAD presented smoother surfaces with OptraFine system in comparison to Dialite LD system. Conclusion All materials presented smoother surfaces at baseline than after adjustment and polishing. Clinical Significance This paper reveals the results of an in vitro study that provides information to clinicians regarding which intraoral polishing system will produce a smoother surface after the adjustment and polishing of IPS Empress CAD, IPS e.max CAD, BruxZir and Zenostar ceramic materials.(J Esthet Restor Dent, 2016) |
| Databáze: | OpenAIRE |
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