Bone Augmentation Techniques in the Mandible Posterior Region

This study will compare three methods to rebuild lost bone in the back part of the lower jaw (posterior mandible) before dental implant placement. Seventy-eight adults will be randomly assigned to receive one of three "cortical shell" techniques using either the patient's own bone (autogenous) or prefabricated bone plates from animal (xenogeneic) or human donors (allogeneic). In all groups, the space inside the shell will be filled with a mixture of small bone chips and bone substitute material. The main outcome is the increase in jawbone width measured on 3D cone-beam CT scans at 6 months after surgery. Additional scans and clinical assessments up to 12 months will evaluate healing, bone stability, and postoperative recovery.

NCT Number	NCT06661447
Lead Sponsor	Universidad de Especialidades Espiritu Santo
Conditions	Bone Substitutes, Alveolar Bone Grafting
Enrollment	78 participants
Start Date	2026-08-01
Primary Completion	2026-11-01 (estimated)
Study Completion	2027-04-01 (estimated)
Updated on ClinicalTrials.gov	2026-07-16