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Related Experiment Video

Updated: Sep 26, 2025

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
05:54

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Three-Dimensional Guided Zygomatic Implant Placement after Maxillectomy.

Nathalie Vosselman1, Haye H Glas1, Bram J Merema1

  • 1Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.

Journal of Personalized Medicine
|April 23, 2022
PubMed
Summary

This study introduces a digital workflow using 3D-printed guides for precise zygomatic implant placement after maxillectomy. This enables immediate, well-fitting obturator prostheses for improved oral function in head and neck cancer patients.

Keywords:
3D3D VSPdigitalguided surgeryhead and neck oncologymaxillary reconstructionmaxillary tumormaxillectomyprosthetic rehabilitationzygomatic implants

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomedical Engineering
  • Oncology

Background:

  • Zygomatic implants enhance obturator prosthesis stability in maxillectomy patients.
  • Free-hand implant placement often leads to deviations, hindering immediate prosthetic rehabilitation.

Purpose of the Study:

  • To evaluate a novel digital workflow for prosthetic-driven zygomatic implant placement.
  • To assess the accuracy and prosthetic fit in a one-stage procedure for head and neck cancer patients.

Main Methods:

  • A digitalized workflow involving 3D-printed cutting and drill guides for zygomatic implant placement.
  • Immediate placement of implant-retained obturator prostheses in 10 maxillectomy patients.

Main Results:

  • High accuracy in zygomatic implant placement (mean deviation 1.73 ± 0.57 mm, 2.97 ± 1.38°).
  • Excellent prosthetic fit of the obturator prosthesis as planned.
  • Accurate abutment positioning (3D: 1.58 ± 1.66 mm, occlusal: 2.21 ± 1.33 mm, height: 1.32 ± 1.57 mm).

Conclusions:

  • The 3D-printed surgical guides facilitate predictable zygomatic implant placement.
  • This digital workflow enables immediate prosthetic rehabilitation after maxillectomy.