Platelet Rich Fibrin Treatment for the Alveolar Ridge Preservation in Smokers

Participants will be treated with L-PRF plugs and membranes from autologous venous blood. Participants will have drawn blood after venipuncture (median cubital vein) into sterile, glass-coated plastic 9 mL tubes without anticoagulant. These tubes will be centrifuged at 2700 rpm for 12 min (Relative Centrifugal Forces-clot = 408 g). After tooth extraction, participants in the experimental group will be treated with L-PRF plugs and membranes.

Intraoral scan will be taken in the treated zone after tooth extraction and after four months.

Cone Beam Computed Tomography in the treated zone will be taken after tooth extraction and after four months.

Before dental implant placement, a biopsy (2 mm in diameter) will be taken. The biopsy will be analyzed by Micro-computed tomography and decalcified and included in paraffin for histological sections.