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Updated: Jun 16, 2026
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Immediate rehabilitation of the extremely atrophic mandible with fixed full-prosthesis supported by four implants
Roberto Weinstein1, Enrico Agliardi, Massimo D Fabbro
1Centre for Research in Oral Implantology, Department of Health Technologies, Istituto Ortopedico Galeazzi I.R.C.C.S., University of Milan, Milan, Italy.
Purpose:
To prospectively assess the outcome of immediate rehabilitation of extremely atrophic mandibles by a full-arch fixed bridge anchored to four implants.
Material And Methods:
Twenty patients with edentulous mandibles were included in the study. Each patient received a full-arch fixed bridge supported by two axial and two distal tilted implants. Prosthetic loading was applied within 48 hours of surgery. Patients were scheduled for follow-up every 6 months up to 2 years and annually until 5 years. Radiographic evaluation of marginal bone level change was performed at 1 year.
Results:
All patients were followed for a minimum of 1 year (range 20-48 months, mean 30.1 months). No failures were recorded to date. The 1-year implant survival rate and prosthesis success rate were 100%. Marginal bone loss around axial and tilted implants was similar at 12-month evaluation, being, respectively, 0.6 ± 0.3 (standard deviation) mm and 0.7 ± 0.4 mm. High patient's level of satisfaction was recorded for function, phonetics, and aesthetics.
Conclusion:
This technique could be considered a viable treatment option for the rehabilitation of the atrophic mandible.
