Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2020  |  Volume : 23  |  Issue : 4  |  Page : 354-358

Comparative evaluation of platelet-rich fibrin, platelet-rich fibrin + 50 wt% nanohydroxyapatite, platelet-rich fibrin + 50 wt% dentin chips on odontoblastic differentiation - An in vitro study-part 2


Department of Conservative Dentistry and Endodontics, Tamil Nadu Government Dental College and Hospital, Tamil Nadu Dr. M.G.R Medical University, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. Kottuppallil Girija
Kottuppallil, Vaipur P. O, Mallappally, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JCD.JCD_3_20

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Aim: The purpose of this study was to investigate the effects of platelet-rich fibrin (PRF) modified with bioactive radiopacifiers–nanohydroxyapatite (nHA) and dentin chips (DC) on odontoblastic differentiation in human dental pulp cells (HDPCs). Subjects and Methods: PRF was modified with 50wt% of nHA (G bone-SHAG31, Surgiwear Company) and 50 wt% of DC. HDPSCs differentiation and mineralization by the groups ([Group A - Control (Dimethyl sulfoxide), Group B - PRF, Group C – PRF + nHA, Group D – PRF + DC]) were assessed. ELISA was done to quantify the interleukin (IL)-6 and IL-8 cytokine expression. The odontoblastic differentiation was determined by the expression of odontogenesis-related genes and the extent of mineralization using alizarin red S staining. Statistical Analysis Used: One-way ANOVA with post hoc Tukey-honestly significant difference tests were applied to assess the significance among various groups. Results: The level of inflammatory cytokines (IL-6 and IL-8) expression by Group D (PRF + 50 wt% DC) was higher compared to Group B (PRF) and Group C (PRF + 50 wt% DC). Group C (PRF + 50 wt% nHA) induced more mineralization nodules compared to other groups. The integrated density value for the DSPP and DMP-1 protein expression by Group C (PRF + 50 wt% nHA) and Group D (PRF + 50 wt% DC) was higher compared to Group B (PRF). Conclusions: The results suggest that the addition of bioactive radiopacifiers into PRF has a synergistic effect on the stimulation of odontoblastic differentiation of HDPCs, hence inducing mineralization.


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