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Updated: May 27, 2026

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
Bone loss of immediately loaded implants with implant-supported and tooth-implant-supported fixed maxillary
Friedhelm Heinemann1, Torsten Mundt, Christian Schwahn
1Department of Prosthodontics, Gerodontology and Biomaterials, University of Greifswald, Rotgerberstr. 8, 17475 Greifswald, Germany. FriedhelmHeinemann@web.de
Abstract:
This 2-year study investigates the survival and crestal bone loss of immediately loaded implants used to support complete-arch implant-supported prostheses (ISPs) or tooth-implant-supported fixed prostheses (TISPs) in the maxilla. Six patients with 52 implants for the support of ISPs and seven patients with 22 implants and 24 abutment teeth for the support of TISPs were included. All implants were immediately loaded. The survival of the supporting implants and teeth was evaluated for up to 6 months after immediate loading. Bone loss around the implants was measured using panoramic radiographs. After the first year, TISPs showed less bone resorption (-0.04 mm from the reference level) than did ISPs (-0.1 mm), while no difference was observed after the second year. Considering the number of pontics used for the prostheses, no significant difference was observed between ISPs and TISPs after both 1 and 2 years. Immediate loading could be a protocol of choice for both maxillary ISPs and TISPs.
