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Year : 2016  |  Volume : 10  |  Issue : 4  |  Page : 469-474

Effect of platelet-rich plasma concentrations on the proliferation of periodontal cells: An in vitro study

1 Department of Pediatric Dentistry, Dental School, Islamic Azad University, Tehran Branch, Tehran, Iran
2 Department of Immunology, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3 Department of Oral and Maxillofacial Surgery, Tehran University of Medical Sciences, Tehran, Iran
4 Department of Pediatric Dentistry, Dental School, Shahed University, Tehran, Iran
5 Department of Dermatology, Medical School, Islamic Azad University, Markazi, Iran

Correspondence Address:
Rahil Ahmadi
Department of Pediatric Dentistry, Dental School, Shahed University, Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1305-7456.195165

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Objective: The purpose of this study was to evaluate the effect of different concentrations of platelet-rich plasma (PRP) on the proliferation of undifferentiated periodontal ligament (PDL) fibroblasts. Materials and Methods: The undifferentiated PDL fibroblasts were obtained from two healthy human premolar teeth and cultured in Dulbecco's modified Eagle's medium. Cell wells were divided into five groups. Experimental groups received 0.1%, 5%, or 50% PRP; the positive and negative control groups were cultured in fetal bovine serum (FBS) 12% and in a medium without FBS 12%, respectively. The plates were incubated at 37°C for 1, 2, 3, 4, and 7 days. PDL cell viability was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide proliferation assay. Statistical analysis of the data was accomplished using repeated measure ANOVA and Tukey's test. P < 0.05 was considered statistically significant. Results: The 5% PRP had the greatest effect on undifferentiated fibroblast proliferation, which was significant on the 3rd day. There was no significant difference between 0.1% PRP and positive control during the first 3 days. The group with 50% PRP presented significantly lower proliferation, compared to other experimental and control groups. Conclusions: It may be concluded that the growth-stimulating effect of PRP is dose dependent with the best results in low concentrations.

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