Abstract
The purpose of this study is to histochemically and immunohistochemically analyze the influence of Platelet-Rich Plasma (PRP), Low-Level Laser Therapy (LLLT) or their combination on the healing of periodontal fenestration defects (PFD) in rats. PDF (3 x 2 x 1 mm) will be surgically created in the mandible of 80 rats. The animals will be randomly divided into 4 groups: Group C (control) - …