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Updated: Jul 1, 2026

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

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

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Prosthetically driven, computer-guided implant planning for the edentulous maxilla: a model study.

Joannis Katsoulis¹, Pawel Pazera, Regina Mericske-Stern

¹Department of Prosthodontics, School of Dental Medicine, University of Bern, Bern 3010, Switzerland.

Clinical Implant Dentistry and Related Research

|September 12, 2008

Summary

Computer-assisted diagnostics and virtual implant planning enable efficient and safe prosthetic solutions for edentulous maxillas. While flapless surgery and immediate loading are suitable for select patients, guided techniques enhance implant placement accuracy.

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Area of Science:

Oral Implantology
Computer-Assisted Surgery
Prosthodontics

Background:

Advanced maxillary atrophy presents challenges for dental implant placement.
Virtual implant planning and computer-assisted diagnostics offer potential solutions.

Purpose of the Study:

To analyze computer-assisted diagnostics and virtual implant planning.
To evaluate the feasibility of template-guided flapless surgery and immediate loading for edentulous maxillas.

Main Methods:

3D analysis and virtual implant planning using NobelGuide software.
Radiographic template conversion from clinical prosthetics for guided analysis.
Evaluation of implant placement in sufficient bone and assessment of additional surgical needs.

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Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach

Published on: August 24, 2018

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

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Published on: October 18, 2021

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach

Designing CAD/CAM Surgical Guides for Maxillary Reconstruction Using an In-house Approach

Published on: August 24, 2018

Main Results:

For bar overdentures, 70% of patients allowed for full flapless surgery; 15% had insufficient bone for any implants.
For fixed prostheses, 30% of patients allowed for full flapless surgery; 17% had insufficient bone for any implants.
Computer-guided planning identified necessary bone augmentation procedures when bone was insufficient.

Conclusions:

Flapless surgery and immediate loading are indicated for a subset of patients with edentulous maxillas due to atrophy.
Computer-guided implant planning is efficient and safe, optimizing implant positioning and prosthetic outcomes.
A combined protocol of computer-guided and conventional surgery shows promise for complex cases.