Figure 1. Clinical procedure of PRFM placement and radiographic images of follow-up at baseline, 3 months, and 6 months. 1A – Preoperative clinical PPD; 1B – Full thickness flap reflection and debridement of the defect site; 1C – Placement of PRFM into the defect site; 1D – Site sutured; 1E – Radiographic images at baseline, 3 months, and 6 months.