L-PRF: A “Super” Biomaterial for Naturally Guided Hard/Soft Tissue Bioengineering and Regeneration of Oro-Dental, Periodontal and Jaw Defects

Abstract

Leukocyte and platelet-rich fibrin (L-PRF) is a 3-D autogenous biomaterial derived via simple and rapid centrifugation of whole blood patient samples, in the absence of anti-coagulants, bovine thrombin, additives or any gelifying agents. A relatively new “revolutionary” step in second generation platelet concentrate-based therapeutics, clinical effectiveness of L-PRF remains highly-debatable, whether due to preparation protocol variability, limited evidencebased clinical literature and/or inadequate understanding of its biocomponents. This critical review provides an update on the application of L-PRF during oral surgery procedures, in human Randomized and Controlled Clinical Trials only (up to February 2016). Accordingly, autologous L-PRF is often associated with early bone formation and maturation; accelerated soft-tissue healing; and reduced post-surgical pain and discomfort. L-PRF is a simple, malleable and safe biomaterial suitable for use in oral surgery. An innovative tool in Regenerative Dentistry, L-PRF is a strong alternative and possibly cost-effective biomaterial for oral-tissue regeneration. Preparation protocols require revision and standardization. Furthermore, a good analysis of its rheological properties, biocomponents and their bioactive function would enhance the validity, comprehension and therapeutic potential of the reported findings or observations; a step closer towards a new era of “super” dental biomaterials and bioscaffolds.