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Five-year study of all-porcelain veneer fixed partial dentures
H W Denissen1, G F Wijnhoff, A A Veldhuis
1University of Nijmegen, School of Medicine and Dentistry, The Netherlands.
The Journal of Prosthetic Dentistry
|May 1, 1993
Summary
Porcelain veneer fixed partial dentures offer excellent esthetics for anterior tooth replacement. However, 25% of restorations failed due to cement degradation, highlighting the need for improved materials.
Area of Science:
- Dental materials science
- Prosthodontics
Background:
- Advancements in bonding systems and ceramics enable conservative anterior tooth replacement using porcelain veneer fixed partial dentures.
- These restorations eliminate the need for metal substructures, preserving more natural tooth structure through conservative abutment preparation.
Purpose of the Study:
- To evaluate the 5-year clinical performance and patient satisfaction of porcelain veneer fixed partial dentures for anterior tooth replacement.
Main Methods:
- Twelve patients received porcelain veneer fixed partial dentures.
- Restorations were monitored for 5 years, with specific attention to gingival margin integrity, esthetics, and occlusal factors.
Main Results:
- A 75% success rate was observed over 5 years.
- Fractures occurred at the veneer surface, primarily linked to degradation of composite resin cements at the gingival margins.
- Patient satisfaction with esthetics was notably high despite material limitations.
Conclusions:
- Porcelain veneer fixed partial dentures can achieve high patient satisfaction due to esthetics.
- Success is contingent on careful patient selection, robust major connectors, and precise occlusion management.
- Improving the mechanical properties of composite resin cements is crucial for enhancing the long-term prognosis of this restorative approach.