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Published on: December 20, 2024
Six-year clinical performance of all-ceramic crowns with alumina cores
Michael H Walter1, Burkhard H Wolf, Annette E Wolf
1Department of Prosthetic Dentistry, School of Dentistry, Dresden University of Technology, Germany. michael.walter@uniklinikum-dresden.de
Purpose:
The aim of the study was to evaluate the clinical performance of Procera Alumina AllCeram crowns (Nobel Biocare).
Materials And Methods:
In 70 patients, 61 anterior and 46 posterior teeth were provided with single crowns and cemented with a glass-ionomer cement.
Results:
Four patients were lost to follow-up. Six crowns had to be removed, all because of nonreparable fracture. At 6 years, the cumulative survival rate was 94.3% for all crowns, 96.7% for anterior crowns, and 91.3% for posterior crowns (survival = not removed). Most of the defects occurred within the first 1.5 years.
Conclusion:
The findings indicate a good clinical prognosis of both anterior and posterior Procera Alumina crowns.