Release Kinetics in PRF Versus GEM21S With and Without Bone Substitutes: An In Vitro Analysis

This study is seeking to evaluate that platelet-derived growth factor-BB (PDGF-BB) is a proven wound healing and osteogenic protein that plays a critical role in wound healing and previous research has demonstrated a non-linear response where higher dosages produced less effect. As Platelet Rich Fibrin (PRF) contains numerous platelets, it contains PDGF-BB, but at levels lower than in the commercially available product and with inter-individual variation, GEM21S. To achieve both ideal handling and achieve ideal levels of PDGF-BB, there is a rationale to add GEM 21S recombinant human platelet-derived growth factor-BB (rhPDGF) to a bone graft prior to making "sticky bone".

Inclusion Criteria: * English speaking * At least 18 years old * Able to read and understand informed consent document * Systemically healthy, non-smoker, no medications Exclusion Criteria: * Non-English speaking * Less than 18 years old * Smokers/tobacco users (\>10 cigarettes/day) * Patients with systemic pathologies or conditions contraindicating oral surgical procedures or adversely affecting healing