Edentulous Alveolar Ridge In Mandible

This study aims to compare clinical outcomes and tissue stability at implant sites in the mandibular posterior region with insufficient buccal keratinized gingiva. It will assess the use of free gingival grafts either before or during the second stage of implant surgery.

The Goal of the clinical trail is to evaluate the Bone height changes around two axially placed anterior implants and two distally inclined 30-degree angle posterior implants in comparison to two axially placed anterior implants and two distally inclined 45-degree angle posterior implants using cone beam CT (CBCT). Patients will visit the clinic after the surgery and after the framework and denture insertion for check ups and during the follow up periods ( at denture insertion, 6 months and 12 months)