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http://dx.doi.org/10.4047/jap.2015.7.1.21

Cytotoxicity of temporary cements on bovine dental pulp-derived cells (bDPCs) using real-time cell analysis  

Malkoc, Meral Arslan (Department of Prosthodontics, Faculty of Dentistry, Inonu University)
Demir, Necla (Department of Prosthodontics, Faculty of Dentistry, Selcuk University)
Sengun, Abdulkadir (Department of Restorative Dentistry, Faculty of Dentistry, Kirikkale University)
Bozkurt, Serife Buket (Research Center, Faculty of Dentistry, Selcuk University)
Hakki, Sema Sezgin (Department of Periodontology, Faculty of Dentistry, Selcuk University)
Publication Information
The Journal of Advanced Prosthodontics / v.7, no.1, 2015 , pp. 21-26 More about this Journal
Abstract
PURPOSE. To evaluate the cytotoxicity of temporary luting cements on bovine dental pulp-derived cells (bDPCs). MATERIALS AND METHODS. Four different temporary cements were tested: Rely X Temp E (3M ESPE), Ultratemp (Ultradent), GC Fuji Temp (GC), and Rely X Temp NE (3M ESPE). The materials were prepared as discs and incubated in Dulbecco's modified eagle's culture medium (DMEM) for 72 hours according to ISO 10993-5. A real-time cell analyzer was used to determine cell vitality. After seeding $200{\mu}L$ of the cell suspensions into the wells of a 96-well plate, the bDPCs were cured with bioactive components released by the test materials and observed every 15 minutes for 98 hours. One-way ANOVA and Tukey-Kramer tests were used to analyze the results of the proliferation experiments. RESULTS. All tested temporary cements showed significant decreases in the bDPCs index. Rely X Temp E, GC Fuji Temp, and Rely X Temp NE were severely toxic at both time points (24 and 72 hours) (P<.001). When the cells were exposed to media by Ultratemp, the cell viability was similar to that of the control at 24 hours (P>.05); however, the cell viability was significantly reduced at 72 hours (P<.001). Light and scanning electron microscopy examination confirmed these results. CONCLUSION. The cytotoxic effects of temporary cements on pulpal tissue should be evaluated when choosing cement for luting provisional restorations.
Keywords
Cytotoxicity; Temporary cements; Real-time cell analysis; Dental pulp-derived cells;
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