Temperature and curing time affect composite sorption and solubility
| Autor: | Fabrício Luscino Alves de Castro, Bruno Barbosa Campos, Kely Firmino Bruno, Rogério Vieira Reges |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Journal of Applied Oral Science, Vol 21, Iss 2, Pp 157-162 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1678-7757 1678-7765 |
| Popis: | Objective: This study evaluated the effect of temperature and curing time on composite sorption and solubility. Material and Methods: Seventy five specimens (8×2 mm) were prepared using a commercial composite resin (ICE, SDI). Three temperatures (10°C, 25°C and 60°C) and five curing times (5 s, 10 s, 20 s, 40 s and 60 s) were evaluated. The specimens were weighed on an analytical balance three times: A: before storage (M1); B: 7 days after storage (M2); C: 7 days after storage plus 1 day of drying (M3). The storage solution consisted of 75% alcohol/25% water. Sorption and solubility were calculated using these three weights and specimen dimensions. The data were analyzed using the Kruskal-Wallis and Mann-Whitney U Tests (α=5%). Results: The results showed that time, temperature and their interaction influenced the sorption and solubility of the composite (p0.05). The 60°C composite temperature led to lower values of sorption for all curing times when compared with the 10°C temperature (p0.05). Solubility was similar at 40 s and 60 s for all temperatures (p>0.05), but was higher at 10°C than at 60°C for all curing times (p0.05). Conclusions: In conclusion, higher temperatures or longer curing times led to lower sorption and solubility values for the composite tested; however, this trend was only significant in specific combinations of temperature and curing times. |
| Databáze: | Directory of Open Access Journals |
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