Microhardness of composite resins at different depths varying the post-irradiation time
| Autor: | Juliane Cristina Ciccone-Nogueira, Mariana Cristina Borsatto, Wanessa Christine de Souza-Zaron, Renata Pereira Ramos, Regina Guenka Palma-Dibb |
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| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Journal of Applied Oral Science, Vol 15, Iss 4, Pp 305-309 (2007) |
| Druh dokumentu: | article |
| ISSN: | 1678-7757 1678-7765 |
| DOI: | 10.1590/S1678-77572007000400012 |
| Popis: | OBJECTIVE: The purpose of this study was to assess the microhardness of posterior composite resins at different depths varying the post-irradiation time. MATERIALS AND METHODS: For each composite resin [Solitaire 2 (SO) - Heraus Kulzer, P60 (P) - 3M, Prodigy Condesable (PC) - Kerr, Surefil (S) - Dentsply and Alert (A) - Pentron], 6 specimens (3 mm in diameter; 4mm high) were prepared using a black polyurethane cylindrical matrix. The resins were inserted in a bulk increment and light cured for 40 seconds. Microhardness was analyzed at different depths (top, 0.4 mm, 1.0 mm, 2.0mm, 3.0 mm and 4.0 mm) and at two moments (20 minutes and 24 hours after light-curing). Data were analyzed by ANOVA and Tukey's test (p |
| Databáze: | Directory of Open Access Journals |
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