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Computer-aided designed/computer-assisted manufactured composite resin versus ceramic single-tooth restorations: a
Sara Vanoorbeek1, Katleen Vandamme, Inge Lijnen
1Department of Prosthetic Dentistry, School of Dentistry, Oral Pathology and Maxillofacial Surgery, Faculty of Medicine, K U Leuven, Belgium.
The International Journal of Prosthodontics
|June 17, 2010
Summary
All-ceramic crowns show superior 3-year clinical performance compared to all-composite resin restorations. All-ceramic restorations offer better success rates, esthetics, and wear resistance for single-tooth replacements.
Area of Science:
- Dental Materials Science
- Restorative Dentistry
- Biomaterials
Background:
- Metal-free restorations are increasingly used in dentistry.
- Limited clinical data exists comparing all-composite resin and all-ceramic CAD/CAM restorations.
- Evaluating long-term functional and esthetic outcomes is crucial.
Purpose of the Study:
- To compare the 3-year clinical performance of computer-aided design/computer-assisted manufacturing (CAD/CAM)-generated all-composite resin and all-ceramic single-tooth crowns.
- To assess functional success, esthetics, and wear resistance.
Main Methods:
- Prospective clinical trial involving 200 restorations (100 all-composite, 100 all-ceramic).
- Evaluations at 3 weeks, 1 year, and 3 years using quality indices, patient self-assessment, marginal fit, periodontal parameters, volume loss, and wear.
- Statistical analysis using t tests.
Main Results:
- All-ceramic crowns had significantly higher cumulative success rates (81.2%) than all-composite resin crowns (55.6%) after 3 years.
- All-composite resin crowns showed greater volume loss and occlusal wear.
- Restoration loosening occurred only with all-composite resin crowns on cast posts.
Conclusions:
- All-composite resin single-tooth restorations demonstrate inferior success rates and wear resistance compared to all-ceramic restorations after 3 years.
- All-ceramic crowns are the preferred choice for CAD/CAM-generated metal-free single-tooth restorations due to superior clinical performance and esthetics.