Related Experiment Video
Updated: Oct 11, 2025
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
Immediate restoration of fixed full-arch prostheses placed on implants in both fresh and healed sockets using the
Simone Marconcini1, Enrica Giammarinaro2, Ugo Covani1
1Tuscan Dental Institute, Foundation for Dental Clinic, Research and Continuing Education, Versilia General Hospital, Lido Di Camaiore, LU, Italy.
Background:
The aim of this retrospective study was to document the long-term clinical efficacy of a surgical-prosthetic technique (the flat one-bridge technique) involving the immediate restoration of both postextraction and nonpostextraction implants supporting full-arch restorations.
Methods:
Implants were placed by adapting the axis to the available bone. Flat definitive abutments were connected during surgery and never disconnected to compensate for eventual implant disparallelism. Bone grafting was performed when needed. The patients received a screw-retained provisional restoration within 48 h of surgery and a final screw-retained prosthesis within 1 year.
Results:
Sixty-six patients received 494 implants distributed in 75 prostheses. The median follow-up was 86 months (range 82-168 months). Only three implants had failed at the last follow-up. Implant survival was 99.6%.
Conclusion:
The flat one-bridge prosthetic protocol is a viable procedure with excellent long-term outcomes. No difference in clinical success could be observed between postextractive and nonpostextractive implants.
