Related Experiment Videos
Performance of CAD/CAM crown restorations
1Section of Restorative Imaging, University of Southern California School of Dentistry, USA.
Journal of the California Dental Association
|September 1, 1996
Summary
This study evaluated CAD/CAM dental crowns. Composite restorations showed significant wear and surface loss after two years, indicating further development is needed.
Area of Science:
- Dentistry
- Biomaterials Science
- Dental Materials
Background:
- Evaluating the clinical performance of computer-aided design/computer-aided manufacturing (CAD/CAM) dental restorations is crucial for material selection and treatment planning.
- Assessing long-term durability of ceramic and composite materials used in full crown restorations is essential for patient outcomes.
Observation:
- A retrospective study evaluated patients with CAD/CAM Empress glass-ceramic or Aristeé composite machined complete crowns.
- Restorations were assessed at least two years post-placement using U. S. Public Health Service criteria.
Findings:
- The composite restorations exhibited unacceptable levels of wear and surface loss.
- Glass-ceramic restorations (CAD/CAM Empress) demonstrated superior durability compared to composite materials.
Implications:
- Findings suggest limitations in current composite materials for long-term dental crown restorations.
- Further research and development are necessary to improve the wear resistance and longevity of CAD/CAM composite dental materials.
- Clinicians should consider material properties when selecting CAD/CAM restorations for posterior teeth.