Evaluation of Zygomatic Implant Placement Accuracy Using Fully Metallic vs Resin-based Surgical Guides in Severely Atrophic Maxilla

What this Trial Is About

This research aims to compare the accuracy of two types of surgical guides used to place zygomatic implants in patients with severe bone loss in the upper jaw. Zygomatic implants are longer than regular dental implants and are fixed in the cheekbone, which generally has enough bone to support them. The study focuses on patients with severely atrophic maxilla who need these special implants due to significant bone loss. The main goal is to determine whether fully metallic surgical guides or resin-based guides improve the precision of implant placement. Participants will receive zygomatic implants on both sides of the upper jaw during surgery. On one side, the implant will be placed using a fully metallic surgical guide made of nickel with CAD/CAM technology. On the other side, the implant will be placed using a resin surgical guide made from biocompatible 3D-printed material. Before surgery, patients will undergo a CT scan and digital impressions or planning to create these guides. This allows direct comparison of the two guide types within the same patient. During the study, patients will have clinical examinations and CT scans before and after surgery to plan and verify implant placement. Researchers will measure the difference between planned and actual implant positions to assess accuracy. Additional outcomes include implant stability, surgical time, and any complications during surgery. Participation involves follow-up visits and signing informed consent, with the study lasting through the implant placement and evaluation periods.

Evaluation of Zygomatic Implant Placement Accuracy Using Fully Metallic vs Resin-based Static Surgical Guides in Severely Atrophic Maxilla