Horizontal Ridge Augmentation in Atrophic Posterior Mandible With Delayed Implant Placement

The study will assess the clinical and radiographic outcomes of tenting pole technique versus modified tunneling technique used for horizontal augmentation of atrophied posterior mandibular ridge associated with delayed implant placement.

Inclusion Criteria: * 1\. Patient age 18-45 years old. 2. Cooperative patient with high motivation and acceptable oral hygiene. 3. Mandibular posterior narrow ridge with width 3-5 mm bucco-lingually. 4. Bone height allowing the insertion of at least 8 mm of implant length without the need for vertical augmentation. 5\. No deep undercut at the ridge in the buccal aspect. 6. Presence of enough amount of keratinized gingiva. 7. Favorable occlusion and no parafunctional habits. 8. Patients able to comply with the required recall visits. Exclusion Criteria: * 1\. General contraindications for dental and/or surgical treatments. \\ 2. Concurrent or previous radiotherapy of head area. 3. Smokers. 4. Pregnancy.