Crestal Bone Changes Following Equi-crestal Versus Subcrestal Implant Placement

Statement of problem: The stability of peri-implant bone is a crucial factor for the long-term success of dental implants, where crestal bone plays a significant role in both the primary as well as the long- term implant stability. A bone loss of 1.5 mm during the first year of loading has been acceptable according to the early standards. However, more bone stability can be expected with the development in implant designs and surfaces over the past decades. Aim of the study: the aim of this study is to radiographically assess the crestal bone changes following delayed implant placement in mandibular previously augmented posterior sites, comparing cases with equicrestal implant placement with subcrestal implant placement

NCT Number	NCT06760442
Lead Sponsor	Misr International University
Conditions	Implant Therapy, Augmentation, Alveolar Ridge
Enrollment	28 participants
Start Date	2025-01-01
Primary Completion	2027-07-01 (estimated)
Study Completion	2027-12-01 (estimated)
Updated on ClinicalTrials.gov	2026-07-16