Effect of preheating on the cytotoxicity of bulk-fill composite resins

Due to the effect of pre-heating on the degree of conversion of composite resins and the possible effect on cytotoxicity, the effect of pre-heating of bulk-fill composite resins was investigated on cytotoxicity in this study. In this study, three different types of composite resin were used, includi...

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Bibliographic Details
Published in:Journal of dental research, dental clinics, dental prospects dental clinics, dental prospects, 2020-01, Vol.14 (1), p.19-25
Main Authors: Ebrahimi Chaharom, Mohammad Esmaeel, Bahari, Mahmoud, Safyari, Leila, Safarvand, Hossein, Shafaei, Hajar, Jafari Navimipour, Elmira, Alizadeh Oskoee, Parnian, Ajami, Amir Ahmad, Abed Kahnamouei, Mahdi
Format: Article
Language:English
Subjects:
Biocompatibility
cell survival
Composite materials
composite resin
Curing
Cytotoxicity
Fibroblasts
Light
Original
Polymerization
Resins
Studies
tetrazolium salts
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Summary:Due to the effect of pre-heating on the degree of conversion of composite resins and the possible effect on cytotoxicity, the effect of pre-heating of bulk-fill composite resins was investigated on cytotoxicity in this study. In this study, three different types of composite resin were used, including Tetric N-Ceram Bulk-Fil, Xtrafil, and Xtrabase. From each composite resin, 10 cylindrical samples (5 mm in diameter and 4 mm in height) were prepared, with five samples preheated to 68°C, and the other five samples polymerized at room temperature (25°C). Twenty-four hours after polymerization, cytotoxicity was assessed by MTT assay on human fibroblasts. Statistical analysis of data was carried out with two-way ANOVA and Sidak Post-Hoc. The significance level of the test was determined at 0.05. There was no statistically significant difference between the mean percentage of cytotoxicity in terms of pre-heating (P>0.05), but the cytotoxicity of the studied composite resins was significantly different (P
ISSN:2008-210X
2008-2118
DOI:10.34172/joddd.2020.003