Prospective study on metal ceramic crowns in private practice settings: 20-year results

Objectives Posterior metal ceramic crowns are still widely used as a standard treatment. The aim of this study was to obtain long-term data on their clinical performance. Material and Methods Ten private practitioners participated in this prospective practice-based study. Patients were provided with...

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Bibliographic Details
Published in:Clinical oral investigations 2019-04, Vol.23 (4), p.1823-1828
Main Authors: Reitemeier, Bernd, Hänsel, Kristina, Range, Ursula, Walter, Michael H.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Ceramics
Crowns
Dental crowns
Dental Porcelain
Dental Prosthesis Design
Dental prosthetics
Dental Restoration Failure
Dentistry
Female
Humans
Male
Medicine
Metal Ceramic Alloys
Middle Aged
Original Article
Patients
Private Practice
Prospective Studies
Teeth
Young Adult
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Summary:Objectives Posterior metal ceramic crowns are still widely used as a standard treatment. The aim of this study was to obtain long-term data on their clinical performance. Material and Methods Ten private practitioners participated in this prospective practice-based study. Patients were provided with two crowns each. Two groups were formed. The single crown group comprised 95 patients with 190 crowns. The retainer crown group comprised 138 patients with fixed dental prostheses and 276 retainer crowns. Results For the primary outcome “loss of tooth or crown,” 20-year survival rates of 78.8% in the single crown group and 67.8% in the retainer crown group were found. Veneering ceramic defects occurred rather frequently, resulting in respective 20-year technical success rates of 74.2% for single crowns and 62.9% for retainer crowns. However, veneering ceramic defects causing crown losses were very rare events. Conclusions The results contribute to our knowledge on long-term outcomes of treatments with metal ceramic crowns and show high survival and success rates over 20 years. Clinical relevance Posterior metal ceramic crowns are a highly reliable option in private practice settings.
ISSN:1432-6981
1436-3771
DOI:10.1007/s00784-018-2618-4