Recurrent application of C-PRF for the test group
tooth
STERILE
Two weeks following a tooth extraction, the test group started receiving C-PRF injections inside the extraction socket. Immediately following sutures removal, 18 ml venous blood was collected in two sterile vacutainer white tubes (VACUETTE®, 9 ml each). The venous blood was spun in the centrifugation machine (PRF DUO® Centrifuge, France) at 2500 rpm for 8 min (relative centrifugal force: 700 g) [