Horizontal Ridge Augmentation of the Mandible Autogenous Block Grafts

Horizontal Ridge Augmentation of the Mandible Using Interpositional Autogenous Block Grafts Versus Onlay Block Grafts; Randomized Controlled Clinical Trial

20 subjects presenting with horizontal mandibular ridge width less than 5 mm were selected and randomly divided two groups (10 in each group). the first group received interpositional block grafts (harvested from the chin and ramus) covered with Platelet-rich fibrin membrane. the second group received onlay block grafts (harvested from the chin and ramus) and covered with Platelet-rich fibrin membrane. the grafts are left for 4 months. the alveolar ridge width dimensions is then measured using radiographic analysis using cone-beam computed tomography scans

Inclusion Criteria:

• Patients of both sexes with a minimum vertical bone height above the inferior alveolar canal of 10mm in the edentulous region.

Patients should have ridge thickness less than 5mm measured 2mm from the alveolar crest Patients should be free from any systemic disease that may affect normal healing of bone, and predictable outcome.

Exclusion Criteria:

• Patients with any systemic disease that may affect normal bone healing. Patients with drug allergies, drug or alcohol abuse, periodontal diseases or poor oral hygiene