Staining resistance of preheated flowable composites to drinking pigmented beverages
Objective This study aimed to evaluate the influence of the preheating of flowable composite resins on the color stability when exposed to drinking pigmented beverages. Methods Wave (SDI) and Tetric N-Flow (Ivoclar Vivadent) were used. One hundred and twenty specimens (n = 10) were photoactivated at...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Norte (UFRN) |
| Repositorio: | Repositório Institucional da UFRN |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.ufrn.br:123456789/22981 |
| Acceso en línea: | https://repositorio.ufrn.br/jspui/handle/123456789/22981 |
| Access Level: | acceso abierto |
| Palabra clave: | Composite resins Temperature Beverages |
| Sumario: | Objective This study aimed to evaluate the influence of the preheating of flowable composite resins on the color stability when exposed to drinking pigmented beverages. Methods Wave (SDI) and Tetric N-Flow (Ivoclar Vivadent) were used. One hundred and twenty specimens (n = 10) were photoactivated at different temperatures (25 °C and 68 °C). After curing, the specimens were immersed in distilled water for 24 h (T0) and then subjected to cola drink, grape juice, and distilled water (control) for 7 days (T1). The color of the specimens was measured using a guide spectrophotometer Easy Shade (Vita Zahnfabrik) at T0 and T1 by means of the parameters of CIE-L*a*b*, and the overall color change after T1 (ΔE) was calculated. The data were analyzed by 3-way ANOVA and Tukey test (P < .05). Results Preheated materials showed statistically significant lower color change after immersion in cola drink and grape juice (P < .01). Grape juice produced statistically the greatest color change for both materials tested regardless of the temperature (P < .01). Conclusion The preheating improved staining resistance of both flowable composites tested. Grape juice showed the highest stainability. |
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