Comparing Two Types of Collagen Membranes for Bone Regeneration Around Dental Implants and Examining Three Crown Veneering Methods Using Monolithic Zirconia Crowns

What this Trial Is About

Researchers are evaluating two types of collagen membranes used in guided bone regeneration GBR around dental implants in patients needing a single tooth replacement in the aesthetic zone. This randomized controlled trial aims to compare bone stability four months after bone augmentation using a standard collagen membrane versus a compressed, stronger version. The study also assesses three different crown veneering methods on monolithic zirconia crowns to evaluate ceramic chipping over five years. Participants will receive an implant with simultaneous bone augmentation using bone particles covered by one of the two collagen membranes. After a healing period of four months, they will receive a crown restoration on the implant. The trial compares the standard collagen membrane with a compressed version in the surgical part and examines three veneering designsnon-veneered, conventionally veneered, and window-veneeredin the restorative part. Participants will attend follow-up visits over seven years, during which dental measurements will assess implant and restoration stability. Researchers will monitor bone level changes, soft tissue volume, and technical restoration parameters at intervals of 1, 3, and 5 years. The primary outcomes include bone stability at four months and ceramic restoration chipping rates at five years, ensuring thorough long-term observation.

Comparison of Two Collagen Membranes for Bone Augmentation Around Dental Implants Restored with Monolithic Zirconia Single Crowns