Use of Platelet-rich fibrin as an autologous biologic rejuvenating media for avulsed teeth - an in vitro study

作者：Hiremath Hemalatha^*; Kulkarni Sadanand; Sharma Robin; Hiremath Vishwanath; Motiwala Tejas

来源：Dental Traumatology, 2014, 30(6): 442-446.

DOI：10.1111/edt.12119

• Platelet-rich fibrin
• platelet poor plasma
• growth factors
• periodontal ligament cells
• platelet-derived growth factors
• rejuvenating media

AimThe prognosis of replanted avulsed tooth depends on the existence of viable cells in the periodontal ligament and also on those cells which are able to proliferate on the damaged areas of the root. The purpose of this study was to evaluate the survival of periodontal ligament cells (PDL) when soaked in an autologous biologic rejuvenating media after an extra-oral dry time of 40min.
MethodThirty teeth were selected with intact crown which were advised for Orthodontic extraction having healthy PDL. They were divided into two experimental and two control groups. The positive and negative controls corresponded to 0-min and 1-h dry time, respectively. The experimental teeth were stored dry for 40min and then immersed in one of the two media, combination of platelet-rich fibrin and platelet poor plasma (PRF+PPP) and PPP for 45min. The teeth in each group were treated with dispase II and collagenase for 30min and later centrifuged for 5min at 50.17 g. The supernatant was removed with sterile micropipette, the cells labelled with 0.4% trypan blue, and the number of viable PDL cells was counted with a haemocytometer, under a light microscope.
Resultsanova and Mann-Whitney U-test demonstrated statistically significant differences in the viability of PDL cells among experimental groups.
ConclusionWithin the parameters of this study, a combination of platelet-rich fibrin and PPP demonstrated higher number of viable PDL cells and hence could be a good biologic rejuvenating media for avulsed teeth.

• 出版日期2014-12