Effect of staining and bleaching on color stability and surface roughness of three resin composites: An in vitro study
| Autor: | Abha Telang, Indiresha H Narayana, K S Madhu, Dinesh Kalasaiah, Poornima Ramesh, Shruthi Nagaraja |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Contemporary Clinical Dentistry, Vol 9, Iss 3, Pp 452-456 (2018) |
| Druh dokumentu: | article |
| ISSN: | 0976-237X 0976-2361 |
| DOI: | 10.4103/ccd.ccd_297_18 |
| Popis: | Aim: This study evaluated the effect of staining and subsequent bleaching on the color stability and surface roughness of three resin composites. Materials and Methods: One hundred and eight customized plastic disks from a plastic mold with an outer diameter of 10 mm and thickness of 1.02 mm were fabricated. Samples were divided into three groups of 36 specimens each – Group I (Estelite® α – Supranano), Group II (Filtek™ Z250 XT – Nanohybrid), and Group III (Filtek™ P90–Silorane). Subsequently, baseline surface color and roughness values were tabulated using spectrophotometer and profilometer, respectively. The specimens were then subjected to staining with coffee and turmeric for a period of 3 h/day for 40 days and following this, bleaching of the samples was done using a bleaching agent carbamide peroxide gel 15% for 8 h/day for 14 consecutive days. Results: Estelite® α performed better by maintaining color stability with minimal roughness compared to Filtek™ P90 and Filtek™Z250 XT. Turmeric had a greater potential to stain composites compared to coffee in all the groups. |
| Databáze: | Directory of Open Access Journals |
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