| Autor: |
Mila Oliveira Santos Viana, João Marcos Carvalho Silva, Alina Barreto de Negreiros Ribeiro Silva, Ayrton de Sá Brandim |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Journal of Health Sciences. 22:234-237 |
| ISSN: |
2447-8938 |
| DOI: |
10.17921/2447-8938.2021v22n3p234-237 |
| Popis: |
Bulk Fill resins are a class of resin composites widely used today and have low polymerization shrinkage. However, these materials need an appropriate light curing technique to have good physical and mechanical properties. The objective of this study was to evaluate the surface microhardness of Bulk Fill resins after their light-curing with two types of high- power light-curing devices, using three techniques. 30 specimens were made with a nanoparticulate composite resin Opus Bulk Fill (FGM) and were divided into three groups according to the device and intensity of light curing: Group 1 - light curing with the Emitter B device (Schuster); Group 2 - light curing with the Valo device (Ultradent) at Standard power; and Group 3 - light curing with the Valo device at high power. Higher values of top surface microhardness were observed in Group 3 (microhardness = 53.6 μm), followed by Group 2 (microhardness = 52.1 μm) and Group 1 (microhardness = 33.1 μm), with p values |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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