Regenerative Endodontic Procedure of Immature Permanent Teeth With Apical Periodontitis Using Platelet-rich Fibrin : A Pilot Randomized Controlled Trial

The conventional method of regenerative endodontic procedure using a blood clot as scaffold materials has shown successful results. However, it is very difficult to induce bleeding and place mineral trioxide aggregate over a blood clot. Platelet-rich fibrin (PRF), a second-generation platelet concentrate. PRF is a matrix of autologous fibrin containing a large quantity of platelets, growth factors and leukocytes. PRF preparation technique is very simple, inexpensive and doesn't require any chemical agents. The purpose of this study is to test the hypothesis that the use of PRF in regenerative endodontic procedure of immature permanent teeth with apical periodontitis will accelerate periapical bone healing and stimulate the root maturation.