| Literature DB >> 21670999 |
Sandrina Henn1, Fernanda Nedel, Rodrigo Varella de Carvalho, Rafael Guerra Lund, Maximiliano Sérgio Cenci, Tatiana Pereira-Cenci, Flávio Fernando Demarco, Evandro Piva.
Abstract
This study evaluates the effect of zinc methacrylate (ZM) on the degree of conversion (DC), cytotoxicity and antimicrobial activity (AA) of an experimental resin. Tetraethyleneglycol dimethacrylate was used as the experimental resin and it was photo activated using camphoroquinone and ethyl 4-dimethylamine benzoate. Additionally, 1.0, 2.5, 5.0, 10, 20 and 30 wt% of ZM was added to the various experimental resins. The DC was accessed by Fourier Transform infrared spectroscopy. For cytotoxicity, immortalized mouse fibroblasts were exposed to the experimental resin extracts. An MTT assay was used to access the cytotoxicity. The AA against Streptococcus mutans UA159 was accessed by the agar diffusion method. An improvement in the DC in all concentrations of ZM was observed. The greater the amount of ZM on the experimental resin, the less the cytotoxicity was provoked. Three ZM concentrations showed AA that exhibited various inhibition growth zones with 10, 20 (10 mm) and 30 wt% (15 mm).Entities:
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Year: 2011 PMID： 21670999 DOI： 10.1007/s10856-011-4364-x
Source DB: PubMed Journal: J Mater Sci Mater Med ISSN： 0957-4530 Impact factor: 3.896