Regenerative Outcomes for Peri-implant Bony Defects Using Amnion-chorion Barrier vs. Collagen Membrane

The purpose of this study is to compare the clinical and radiographic outcomes of two different barrier membranes-amnion-chorion membranes (ACM) and conventional collagen membranes-used in guided bone regeneration (GBR) procedures for the treatment of peri-implantitis. Both membranes are commonly used in clinical practice; however, this study aims to determine whether ACM offers greater benefits in terms of peri-implant probing depth reduction, radiographic bone fill, and patient-reported post-operative healing outcomes. The findings may help inform surgical decision-making and support the use of ACM as a more effective regenerative material for managing peri-implant bony defects.

NCT Number	NCT07032259
Lead Sponsor	Loma Linda University Collaborators: Maxxeus
Conditions	Peri-Implantitis
Enrollment	56 participants
Start Date	2026-12
Primary Completion	2027-12 (estimated)
Study Completion	2027-12 (estimated)
Updated on ClinicalTrials.gov	2026-07-10