Color Stability and Surface Roughness of Composites after Artificial Accelerated Aging
| Autor: | Carolina Maschietto Pucinelli, Raquel A. B. da Silva, Talitha S. Mellara, Patrícia Gatón-Hernández, Fernanda C. P. Pires-de-Souza, Lea A. B. da Silva |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Journal of Dentistry Indonesia, Vol 24, Iss 2, Pp 26-31 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1693-9697 2355-4800 |
| DOI: | 10.14693/jdi.v24i2.1029 |
| Popis: | The color stability and surface uniformity are very important properties for dental aesthetics. Objective: To evaluate the color stability and surface roughness of different composites after artificial accelerated aging (AAA). Methods: Samples were made using the silorane-based Filtek P90 (3M-ESPE), nanohybrid Tetric N-Ceram (Ivoclar Vivadent), and GC Kalore (GC Company). Ceramic D. Sign (Ivoclar Vivadent) and Ketac N100 (3M-ESPE) resin-modified glass ionomer cement (RMGIC) served as controls. The values for color stability and surface roughness were recorded before and after AAA for non-C-UV (300 hours). Color stability was assessed as the difference between the coordinates obtained from the L*a*b* system. The surface roughness was analyzed with a rugosimeter. The surface value of each sample was taken as the average of these measurements. The one-way ANOVA and Tukey’s post-test with α=5% was used. Results: The greatest change in color stability occurred for the RMGIC (ΔE=18.7) and the least for ceramics (ΔE=2.1). No significant difference was noted among the composites (p>0.05). The surface roughness before and after AAA differed significantly only for the RMGIC (pConclusion: The two latest generation resins (Filtek P90 and GC Kalore) showed good results in terms of color stability and surface roughness for use in aesthetic restorations. |
| Databáze: | Directory of Open Access Journals |
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