Jeremias Hey1, Florian Beuer, Tobias Bensel, Arne F Boeckler. 1. Department of Prosthetic Dentistry, University School of Dental Medicine, Martin-Luther University, Große Steinstrasse 19, Halle, Germany. jeremias.hey@medizin.uni-halle.de
Abstract
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.
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.
Authors: Irena Sailer; Aurel Fehér; Frank Filser; Ludwig J Gauckler; Heinz Lüthy; Christoph Hans Franz Hämmerle Journal: Int J Prosthodont Date: 2007 Jul-Aug Impact factor: 1.681