Maxillary All-on-X Implant Rehabilitation Using Stackable Guided Surgery and Immediate Loading A 2-Year Retrospective Study on Terminal Maxillary Dentition

What this Trial Is About

Researchers are evaluating the clinical performance of maxillary All-on-X full-arch implant-supported rehabilitation using a fully digital stackable guided surgery and immediate loading protocol. This retrospective study focuses on patients with terminal maxillary dentition treated with this approach, aiming to assess implant survival and peri-implant outcomes over a two-year follow-up. The study also investigates how surgical and prosthetic factors, including basal seating guide design, influence these results. Patients received a maxillary All-on-6 implant-supported complete fixed dental prosthesis planned through three-dimensional imaging and dedicated software. Stackable surgical guides were used to enable guided bone reduction when needed, followed by fully guided implant placement under local anesthesia. Implants with sufficient primary stability were immediately loaded with a screw-retained provisional fixed prosthesis on multi-unit abutments. The treatment followed a standardized surgical protocol with occlusal contacts minimized during healing. Participants are followed for at least two years with scheduled clinical and radiographic assessments at prosthesis delivery, one year, and two years. Outcome measures include implant survival at six months post-placement, peri-implant clinical parameters such as plaque index, bleeding on probing, probing depth, and marginal bone level changes assessed by standardized radiographs. The study collects complete clinical and radiographic records to evaluate success according to established criteria.

All-on-X Stackable Guides for Maxillary Terminal Dentition