The effect of preheating of composite resin on its color stability after immersion in tea and coffee solutions: An in-vitro study
| Autor: | Dina Maleki, Sanaz Mihandoust, Ali Seyed-Monir, Farideh Darabi |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Composite number Significant difference 030206 dentistry CIENCIAS MÉDICAS [UNESCO] 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine Distilled water UNESCO::CIENCIAS MÉDICAS In vitro study General Dentistry Curing (chemistry) Nuclear chemistry |
| Zdroj: | Darabi, Farideh ; Seyed-Monir, Ali ; Mihandoust, Sanaz ; Maleki, Dina. The effect of preheating of composite resin on its color stability after immersion in tea and coffee solutions : an in-vitro study. En: Journal of Clinical and Experimental Dentistry, 11 12 2019: 1151-1156 RODERIC. Repositorio Institucional de la Universitat de Valéncia instname |
| ISSN: | 1989-5488 |
| DOI: | 10.4317/jced.56438 |
| Popis: | Background One of the concerns in using composite resins is color change. The aim of this study was to investigate the effect of preheating on color stability of composite resins when immersed in coffee and tea. Material and Methods This experimental study included 60 composite disks. The samples were divided into 2 groups, one group prepared at room temperature and the other prepared at 68 °C. After curing, the samples were placed in 37 °C distilled water for 24 hours. The color of the samples was measured (t0) using spectrophotometer according to CIE-L*a*b* system. The samples of each group were then divided into 3 subgroups and respectively immersed in distillated water, coffee and tea for 30 days and the final color (t1) was measured. The difference between the measured colors was calculated (∆E) and the results were analyzed using version 21.0 of SPSS software, Paired t-test, ANOVA, Tukey's test, and Dunnett t-test. Results The preheated composites showed significantly lower staining in the coffee solution than the room temperature composites (p |
| Databáze: | OpenAIRE |
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