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Porcelain and resin veneers clinically evaluated: 2-year results
L M Rucker1, W Richter, M MacEntee
1Department of Clinical Dental Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada.
Journal of the American Dental Association (1939)
|November 1, 1990
Summary
Porcelain dental veneers outperformed resin veneers over two years. While both offered similar aesthetics and gum health, resin veneers showed higher rates of chipping and fracture, with 20% failure compared to none for porcelain.
Area of Science:
- Dental materials science
- Restorative dentistry
- Clinical prosthodontics
Background:
- Dental veneers are cosmetic restorations for improving tooth appearance.
- Porcelain and resin composite materials are commonly used for dental veneers.
- Long-term clinical performance data comparing these materials is crucial for treatment planning.
Purpose of the Study:
- To clinically compare the 2-year outcomes of baked porcelain veneers versus heat-and-pressure processed urethane resin veneers.
- To evaluate esthetic appearance, gingival response, and failure rates between the two veneer types.
Main Methods:
- A clinical study was conducted comparing two types of dental veneers: porcelain and urethane resin.
- Follow-up assessments were performed after a 2-year period.
- Evaluated parameters included esthetic outcome, gingival health, and material integrity.
Main Results:
- Both porcelain and resin veneers demonstrated comparable esthetic appearance and positive gingival response at 2 years.
- Resin veneers exhibited a significantly higher incidence of chipping and fracture.
- Twenty percent of the urethane resin veneers failed within the 2-year study period, while all porcelain veneers remained intact.
Conclusions:
- Baked porcelain veneers demonstrate superior durability and longevity compared to heat-and-pressure processed urethane resin veneers.
- Porcelain veneers are a more reliable choice for long-term clinical success, minimizing the risk of mechanical failure.
- Further research may explore modifications to resin veneer materials to improve fracture resistance.