IMMEDIATE IMPLANT With Different Types of Membranes

Autogenous Dentine Derived Barrier Membrane Versus Extended Platelet Rich Fibrin Membrane in Immediate Implant Placement

forty patients will be selected from the outpatient's clinic of Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Mansoura University for replacement of non-restorable tooth in posterior mandibular area.

Patients' Grouping:

The patients will be randomly divided into two equal uniform groups each consists of 20 patients:

Group A:

20 patients with non-restorable mandibular molar tooth will be treated with an immediately placed dental implant in conjunction with a dentin-derived membrane from the extracted tooth.

Group B:

20 patients with non-restorable mandibular molar tooth will be treated with an immediately placed dental implant in conjunction with extended platelet rich fibrin membrane.

Inclusion Criteria:

• Age above 18 years
• Non-restorable mandibular molar tooth that needs dental extraction & guided bone regeneration for immediate implant placement.
• Acceptable inter-arch space for the future prosthesis.
• Patient medically free from systemic diseases that absolutely contraindicate implant surgery.
• Cooperative patient with high motivation and acceptable oral hygiene.
• Free from history of bruxism / parafunctional habits.

Exclusion Criteria:

• Local and / or systemic conditions that interfere with the procedure.
• Smokers.
• Pregnancy.
• Uncooperative patients.
• Patient had undergone in the past 12 months radiation therapy to the head and neck area.