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effect of preheating on the cytotoxicity of bulk-fill composite resins
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نویسنده
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ebrahimi chaharom mohammad esmaeel ,bahari mahmoud ,safyari leila ,safarvand hossein ,shafaei hajar ,jafari navimipour elmira ,alizadeh oskoee parnian ,ajami amir ahmad ,abed kahnamouei mahdi
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منبع
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journal of dental research dental clinics dental prospects - 2020 - دوره : 14 - شماره : 1 - صفحه:19 -25
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چکیده
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Background. 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. methods. 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. results. 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<0.001). the cytotoxicity of tetric n-ceram bulk-fil composite resin was higher than that of the two other composite resins. conclusion. pre-heating of bulk-fill composite resin did not affect their cytotoxicity. in addition, the cytotoxicity of different bulk-fill composite resins was not the same.
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کلیدواژه
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cell survival ,composite resin ,tetrazolium salts
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آدرس
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tabriz university of medical sciences, faculty of dentistry, dental and periodontal research center, department of operative dentistry, iran, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, iran, ardabil university of medical sciences, school of dentistry, department of operative dentistry, iran, ardabil university of medical sciences, school of dentistry, department of operative dentistry, iran, tabriz university of medical sciences, faculty of medicine, department of anatomy, iran, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, iran, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, iran, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, iran, tabriz university of medical sciences, faculty of dentistry, department of operative dentistry, iran
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پست الکترونیکی
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mehdyabed@yahoo.com
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Authors
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