Objectives: Numerous studies have described the benefits of the injectable plasma rich fibrin (I-PRF) and simvastatin (SMV) gel separately in periodontal regeneration. However, there has been a lack of clinical trials comparing the use of these two agents. The aim of this study was to compare the clinical efficacy of open flap debridement (OFD) either with (I-PRF) or 1.2 % (SMV) gel in the management of patients having infra-bony defects (IBDs).
Subjects and methods: Twenty patients, having stage III grade B periodontitis with (IBDs) were recruited and randomly allocated to either; Group I (I-PRF) (n=10) undergoing (OFD) followed by single application of I-PRF, or Group II (SMV) (n=10) undergoing (OFD) followed by application of 1.2% simvastatin gel. The following clinical parameters were measured at baseline, and 6 months post-operative; clinical attachment level (CAL), periodontal pocket depth (PD), plaque index (PI) and gingival index (GI), as clinical parameters as well as, defect depth as a radiographic parameter.
Results: Both groups showed significant reduction regarding all clinical parameters with no statistically significant difference between groups at 6 months post-operative. SMV demonstrated a statistically significant higher reduction in defect depth compared to I-PRF.
Conclusion: I-PRF and SMV 1.2% gel as adjunctive local delivery regenerative therapy to (OPD) were effective and comparable clinically. Infrabony defects treated with SMV 1.2 % gel showed better bone fill compared to I-PRF radiographically.