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Marginal adaptation of ceramic crowns: a systematic review
Mathieu Contrepois1, Arnaud Soenen, Michel Bartala
1Instructor, Department of Prosthodontics, Faculty of Dentistry, University of Bordeaux Segalen, Bordeaux, France.
The Journal of Prosthetic Dentistry
|October 15, 2013
Summary
Most ceramic dental crown systems offer clinically acceptable marginal fit. However, study variations prevent direct comparison of systems, highlighting the need for advanced imaging techniques in future research.
Area of Science:
- Dental Materials Science
- Prosthodontics
- Biomaterials Engineering
Background:
- Advancements in ceramic restorative systems have significantly impacted fixed dental prostheses fabrication.
- Esthetics, fracture resistance, and marginal adaptation are key factors for restoration success.
- A systematic review is crucial to assess the marginal accuracy of ceramic systems.
Purpose of the Study:
- To review the scientific literature on the marginal fit of ceramic crowns.
- To investigate factors influencing the marginal adaptation of different ceramic systems.
Main Methods:
- Systematic literature search of PubMed and Scopus databases.
- Keywords: discrepancy, fit, gaps, adaptation, disilicate, ceramic, copings, crowns.
- Inclusion criteria: English-language, peer-reviewed articles published before April 15, 2012.
Main Results:
- 54 studies (1994-2012) involving 17 ceramic systems were included.
- 94.9% of measured marginal gaps were clinically acceptable.
- Study heterogeneity precluded meta-analysis; finish line, cementing space, veneering, and cementation influenced adaptation.
Conclusions:
- Ceramic systems generally exhibit clinically acceptable marginal fit.
- Current research limitations prevent direct comparison of systems for marginal fit.
- Computer x-ray microtomography is recommended for future marginal adaptation research.
