Photobiomodulation and Platelets Rich in Growth Factors (PRGFs)-Assisted Flap Surgery in Treating Stage III Periodontal Defects

A full-thickness flaps were elevated. In the test sites after the SPPF access will be performed, root surface debridement will be meticulously performed, followed by intra-marrow penetrations (IMPs), on the defect walls using a 0.25 mm wide half round bur, mounted on a slow-speed handpiece. Following this, low-level laser biostimulation of the defect will be effected with an 940 nm diode laser at 3 W power, with an uninitiated 0.6mm optical fiber tip. The defects will be irradiated for 20 seconds in a continuous noncontact mode and then retracted for 8 seconds. This will be repeated for 3 times so that the defects were effectively lased for about 60 seconds.

In the second group, following the SPPF, the defect will grafted with particulated PRF, which will be overlaid with a PRF membrane, without any adjunctive defect management measures. PRF will be prepared by collecting Intra-venous blood (from the antecubital vein) in a 10-ml sterile glass tube without anticoagulant and immediately centrifuged in a centrifugation machine at 3000 rpm for 10 minutes. It will result in the separation of blood into a structured fibrin matrix in the middle of the tube, just between the red corpuscles at the bottom and acellular plasma (platelet poor plasma) at the top. PPP will be discarded. PRF will be easily separated from the red corpuscles base using sterile tweezers and scissors.