In vitro evaluation of water absorption and color variation of composite resins immersed in two pigment substances
Composite resins are subjected to water absorption and color variations, which can lead to hydrolytic degradation of the filler and promote bacterial growth. The aim of this study was to assess water absorption and color variation in resin discs with different filler particle sizes after exposure to...
Guardado en:
| Autores principales: | , , , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
| Publicado: |
Facultad de Odontología de la Universidad Nacional del Nordeste (FOUNNE)
2023
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/rfo/article/view/7192 |
| Aporte de: |
| Sumario: | Composite resins are subjected to water absorption and color variations, which can lead to hydrolytic degradation of the filler and promote bacterial growth. The aim of this study was to assess water absorption and color variation in resin discs with different filler particle sizes after exposure to commonly consumed beverages. An experimental study was conducted with 60 samples, including 30 from microhybrid resin Opallis (FGM®) and 30 from nanohybrid Brilliant NG (Coltene®). Color measurements were taken using a spectrophotometer before immersion in water and pigmenting substances and after 14 days. Water absorption was evaluated by weighing the samples on a precision scale before immersion, at 24 hours, 7 days, and 14 days. Discs of Brilliant NG resin exhibited lower mean values of water absorption compared to Opallis resin. Carbonated beverages showed the highest water absorption, as compared to coffee and distilled water, while coffee resulted in the highest disc pigmentation. Although no statistically significant differences were found, it can be concluded that nanohybrid Brilliant NG resin has a lower capacity for water absorption and pigmentation compared to microhybrid Opallis resin. |
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