Extended Platelet Rich Fibrin Versus Allograft as Space Filling Material

Inclusion Criteria: 1. Patients with badly destructed teeth due to trauma or caries. 2. Patients willing to complete the study follow up intervals. 3. Patients with good oral hygiene. 4. Adequate inter-arch space that can accommodate implant abutment and future restoration. 5. No gender preference in selection of the patients. Exclusion Criteria: 1. Patients with systemic diseases that absolutely contraindicate dental implant placement. 2. Patients with parafunctional habits (bruxism and clenching). 3. Heavy smokers (i.e. More than 20 cigarettes/day)34 and alcoholism. 4. Presence of local infection or lesions at the proposed area for dental implant. 5. Pregnancy. 6. Patient taking drugs that could affect bone healing process as immunosuppressive drugs and bisphosphonates. 7. Patients with bad oral hygiene and untreated periodontal disease 8. Uncooperative patients