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Related Experiment Video

Updated: Apr 1, 2026

Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
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Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material

Published on: December 20, 2024

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Fracture Rates and Lifetime Estimations of CAD/CAM All-ceramic Restorations.

R Belli1, A Petschelt2, B Hofner3

  • 1Research Laboratory for Dental Biomaterials, Dental Clinic 1-Operative Dentistry and Periodontology, Universitätsklinikum Erlangen, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany rbelli@dent.uni-erlangen.de.

Journal of Dental Research
|October 3, 2015
PubMed
Summary

This study analyzed 34,911 dental restorations using a novel database approach. It found performance differences among various all-ceramic systems, aiding future material selection for dental prosthetics.

Keywords:
ceramicsclinicaldatabasedentaldental restoration failureretrospective

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Area of Science:

  • Dental materials science
  • Clinical data analysis
  • Prosthodontics

Background:

  • Collecting clinical data on dental restoration fractures via prospective trials is resource-intensive.
  • Retrospective analysis of large datasets offers an alternative for gathering clinical information.

Purpose of the Study:

  • To introduce an unconventional method for collecting extensive clinical data on indirect dental restorations.
  • To retrospectively analyze fracture data from computer-aided design (CAD)/computer-aided manufacturing (CAM) all-ceramic restorations.

Main Methods:

  • Accessed a German machining center's database containing information on 34,911 CAD/CAM all-ceramic posterior restorations.
  • Collected fracture data reported by dentists for bridges, crowns, onlays, and inlays over 3.5 years.
  • Utilized survival analyses to evaluate restoration performance.

Main Results:

  • Identified significant differences in the clinical performance and survival rates among various all-ceramic systems.
  • ZrO2-based restorations, lithium disilicate, and leucite-reinforced glass-ceramics exhibited distinct performance characteristics.
  • Provided estimations of future restoration longevity based on the analyzed data.

Conclusions:

  • The retrospective database approach is effective for large-scale clinical data collection in dentistry.
  • Material choice significantly impacts the long-term survival of all-ceramic posterior restorations.
  • Findings guide clinicians in selecting appropriate all-ceramic materials for improved patient outcomes.