The combined effect of food-simulating solutions, brushing and staining on color stability of composite resins
| Autor: | Tânia Mara Da Silva, Ana Luísa Leme Simões Sales, Cesar Rogerio Pucci, Alessandra Bühler Borges, Carlos Rocha Gomes Torres |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Acta Biomaterialia Odontologica Scandinavica, Vol 3, Iss 1, Pp 1-7 (2017) |
| Druh dokumentu: | article |
| ISSN: | 2333-7931 23337931 |
| DOI: | 10.1080/23337931.2016.1276838 |
| Popis: | Objective: This study evaluated the effect of food-simulating media associated with brushing and coffee staining on color stability of different composite resins. Materials and methods: Eighty specimens were prepared for each composite: Grandio SO (Voco), Amaris (Voco), Filtek Z350XT (3M/ESPE), Filtek P90 (3M/ESPE). They were divided into four groups according to food-simulating media for 7 days: artificial saliva (control), heptane, citric acid and ethanol. The composite surface was submitted to 10,950 brushing cycles (200 g load) in an automatic toothbrushing machine. The specimens were darkened with coffee solution at 37 °C for 24 h. After each treatment, color measurements were assessed by spectrophotometry, using CIE L*a*b* system. The overall color change (ΔE) was determined for each specimen at baseline (C1) and after the treatments (food-simulating media immersion/C2, brushing/C3 and dye solution/C4). Data were analyzed by two-way repeated measures ANOVA and Tukey’s tests (p |
| Databáze: | Directory of Open Access Journals |
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