Surface microhardness of nanohybrid and microhybrid composite resins light cured at different distances
| Autor: | Zuloeta-Navarro Luz Clarita, Orrego-Ferreyros Luis Alexander |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Journal of Dental Materials and Techniques, Vol 12, Iss 4, Pp 175-179 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2322-4150 2252-0317 |
| DOI: | 10.22038/jdmt.2023.74098.1581 |
| Popis: | Objective: This study aimed to compare the surface microhardness of a nanohybrid and a microhybrid resin composite light-cured at two different distances.Methods: A total of 40 disc specimens were prepared for this in vitro experiment; 20 from a nanohybrid composite resin (Filtek P60; 3M ESPE) and 20 from a microhybrid composite resin (Filtek Z250; 3M ESPE). Each group was divided into two equal subgroups (n=10), based on the distance between the light-curing device and the composite surface (either 2 or 4 mm). After 24 hours of curing, the teeth underwent the microhardness test to determine the Vickers hardness number (VHN) at the surface. The data were subjected to statistical analysis using a two-way analysis of variance (ANOVA) at the significance level of P |
| Databáze: | Directory of Open Access Journals |
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