Comparative Study of Extraction Socket Preservation Using Autogenous PRF and TCP

Guided tissue regeneration is one of the clinical techniques used in contemporary dentistry in the management of bone loss. The current study compares the healing pattern of platelets rich fibrin (PRF) and TCP (tricalcium phosphate) in the management of extraction sites after atraumatic tooth extractions. Method: Atraumatic extractions were carried out on 2 teeth to preserve the morphology or socket size. Thirty percent HA (Hydroxylapatite) and 70% Tri calcium phosphate were mixed with the patient’s blood and inserted into the extraction socket of the first upper premolar without condensation, while PRF was inserted into the canine socket. Both sites were sutured and patient was followed up for 4 weeks. After 4 weeks a bone density measurement was done by CBCT and bone was harvested by a 3.2 trephine drill and 2 implants neobiotech IS2 3.5 X 13 mm were placed. Results: CBCT (Cone beam computer tomogram) showed nearly equal bone density in both sockets. Examination after 4 weeks showed equal results in both sockets. PRF socket has the advantage of having well organized woven bone trabeculae and lined with osteoblast cells while in the TCP sample there was irregular woven bone trabeculae with various sizes and the absence of osteoblast cells. Conclusion: Though PRF and TCP generated bone of the same density, their mechanisms of bone formation was different. The PRF socket had the advantage of having well organized woven bone trabeculae and lined with osteoblast cells while in the TCP sample there was irregular woven bone trabeculae with various sizes and the absence of osteoblast cells. Demonstrating the osteogenic potentials of PRF due to its growth factors contents as compared to TCP that acts as a scaffold. Both of the materials are useful for socket preservation.