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Updated: May 17, 2026
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
Metal-ceramic-fixed dental prosthesis with CAD/CAM-fabricated substructures: 6-year clinical results
Jeremias Hey1, Florian Beuer, Tobias Bensel
1Department of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther University, Große Steinstrasse 19, Halle, Germany. jeremias.hey@medizin.uni-halle.de
Objectives:
The aim of this study was to evaluate the clinical performance of fixed dental prostheses (FDPs) with computer-aided design (CAD)/computer-aided manufacturing (CAM)-fabricated titanium substructures veneered with low-fusing porcelain after 6 years.
Materials And Methods:
Thirty-one FDPs for 23 patients were fabricated. The frameworks were designed and milled using an early version of a dental CAD/CAM system. Checkups were performed annually.
Results:
Complications totaled ten porcelain fractures, one substructure fracture, and one biologic failure. The success rate was calculated at 58.6 % and the survival rate at 88 % (Kaplan-Meier analysis).
Conclusion:
The clinical performance of the described technique for FDPs with titanium substructures was poor. Therefore, the presented concept cannot be recommended.
Clinical Relevance:
CAD/CAM-fabricated titanium substructures veneered with the powder build-up technique showed poor clinical outcome after 6 years.
