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Journal of Dentistry, Shiraz University of Medical Sciences، جلد ۲۳، شماره ۱، صفحات ۱۳-۱۹
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عنوان انگلیسی Cytotoxic Effect of Nano Fast Cement and ProRoot Mineral Trioxide Aggregate on L-929 Fibroblast Cells: an in vitro Study
چکیده انگلیسی مقاله Statement of the Problem: Endodontic materials that are placed in direct contact with living tissues should be biocompatible. The cytotoxicity of Nano Fast Cement (NFC) compared to ProRoot Mineral Trioxide Aggregate (ProRoot MTA) must be evaluated. Purpose: ThisIn vitro study aimed to assess the cytotoxic effects of NFC in comparison to ProRoot MTA on L-929 mouse fibroblast cells. Materials and Method: In this animal study,L-929 mouse fibroblast cells were grown in Dulbecco's Modified Eagle's medium (DMEM) supplemented with 10% fetal bovine serum (FBS) in an atmosphere of 5% co₂/95% air at 37 C̊. A total of 10⁴ cells from the fourth collection were plated in each well of a 96-well micro-titer plate. Materials were mixed according to the manufacturer’s instruction and placed into the related plastic molds with 5 mm diameter and 3 mm height. After 24 hours and a complete setting, the extracts of the tested materials were produced at six different concentrations and placed in the related wells. Cells in DMEM served as the negative control group. DMEM alone was used as the positive control group. Methyl-thiazoltetrazolium (MTT) colorimetric assay was conducted after 24, 48, and 72 hours. The absorbance values were measured by ELISA plate reader at 540 nm wavelength. Three-way analysis of variance, post-hoc Tukey, LSD, and independent t-test were used for the statistical analyses using SPSS software, version 16.0. Results: There was no statically significant difference between MTA and NFC in cell viability values at different concentrations and different time intervals (p = 0.649). Viability values were significantly decreased after 72 hours, but there was no significant difference between the first and second MTT assays (p = 0.987). Cytotoxicity significantly increased at concentrations higher than 6.25 µɡ/ml. Conclusion: Cytotoxicity depends on time, concentration, and cement composition. There was no statistically significant difference between NFC and MTA concerning their cytotoxic effects on L-929 mouse fibroblast cells.
کلیدواژه‌های انگلیسی مقاله Mineral Trioxide Aggregate, Cytotoxicity, Endodontics, Cement
نویسندگان مقاله Mohammadreza Nabavizadeh |
Dept. of Endodontic, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

Fariborz Moazami |
Dept. of Endodontic, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

Ahmad Gholami |
Biotechnology Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.

Vahid Mehrabi |
Dept. of Endodontic, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

Yasamin Ghahramani |
Dept. of Endodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

نشانی اینترنتی https://dentjods.sums.ac.ir/article_47929_5af2ee50d88d249b75f2b80abc0301d6.pdf
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