Clinical Oral Investigations

, 13:445 | Cite as

Three-year clinical prospective evaluation of zirconia-based posterior fixed dental prostheses (FDPs)

  • Florian Beuer
  • Daniel Edelhoff
  • Wolfgang Gernet
  • John A. Sorensen
Original Article


This clinical study evaluated posterior three-unit fixed dental prostheses (FDPs) made of zirconia substructures veneered with pressable glass–ceramic. Nineteen patients received 21 FDPs replacing either the second premolar, first molar, or second molar. The FDPs were cemented with glass ionomer. Recall examinations were performed every 12 months. The mean service time of the FDP was 40 months. At 30 months, one maxillary FDP exhibited zirconia framework fracture at a thinned occlusal area of the abutment. Loss of retention led to the removal of one FDP after 38 months. The Kaplan–Meier survival probability was 90.5% after 40 months for all types of failures and 95.2% concerning framework fractures. The overpressing technique appears to be reliable in terms of the veneering material. However, one framework fracture was observed in this study.


Fixed dental prosthesis Zirconia Overpressing technique Conventional cementation Framework fracture 



This study was funded by DeguDent. The authors wish to sincerely thank Josef Schweiger, Marlis Eichberger, and John Meinen for fabricating the restorations at the laboratory of Munich Dental School.

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Florian Beuer
    • 1
  • Daniel Edelhoff
    • 1
  • Wolfgang Gernet
    • 1
  • John A. Sorensen
    • 2
  1. 1.Department of ProsthodonticsLudwig Maximilians UniversityMunichGermany
  2. 2.Pacific Dental InstitutePortlandUSA

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