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A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Reference-based digital concept to restore partially edentulous patients following an immediate loading protocol: a
Ali Tahmaseb1, Renaat De Clerck, Steven Eckert
1Department of Oral Implantology and Prosthetics, Academic Centre for Dentistry Amsterdam, University of Amsterdam, Amsterdam, The Netherlands. ali@tahmaseb.eu
The International Journal of Oral & Maxillofacial Implants
|August 16, 2011
Summary
This study shows that using mini-implants and reference brackets as fiducial markers enables accurate fabrication of dental prostheses for partially edentulous patients. This computer-aided approach improves prosthetic fit before implant surgery.
Area of Science:
- Dental Implantology
- Computer-Aided Design/Computer-Assisted Manufacture (CAD/CAM)
- Prosthodontics
Background:
- Restoring partially edentulous patients often requires precise planning and execution.
- Traditional methods can face challenges in achieving accurate prosthetic fit.
- Advancements in digital technology offer potential solutions for improved outcomes.
Purpose of the Study:
- To evaluate a digital workflow for restoring partially edentulous patients.
- To assess the accuracy of a computer-aided three-dimensional planning protocol.
- To integrate CAD/CAM technology with fiducial markers for prosthesis fabrication.
Main Methods:
- Mini-implants and reference brackets were used as fiducial markers in a test cast and two patients.
- A surgical template was fabricated based on computed tomographic (CT) imaging.
- A CAD/CAM superstructure was designed and manufactured prior to surgery.
- Prosthesis fit was evaluated using three-dimensional strain gauge measurements.
Main Results:
- The mean misfit for implants was 26.6 μm (x-axis), 24.8 μm (y-axis), and 10.4 μm (z-axis).
- The total calculated misfit was 42.6 μm.
- This indicates a high degree of accuracy in the fabricated prosthesis.
Conclusions:
- The use of reproducible fiducial markers (mini-implants, reference brackets) is effective.
- This digital protocol facilitates the fabrication of accurately fitting definitive prostheses.
- The method shows promise for improving outcomes in implant-supported restorations.
