Veneered zirconia crowns as abutment teeth for partial removable dental prostheses: a clinical 4-year retrospective study

The Journal of Prosthetic Dentistry
Juha PihlajaAune Raustia

Abstract

The mechanical properties of zirconia suggest that it might serve as a material for abutment crowns for partial removable dental prostheses (RDPs). Only limited clinical evidence is available for the use of ceramics as abutment crowns. The purpose of this retrospective clinical study was to evaluate the outcome of veneered zirconia single crowns in abutment teeth for RPDs in participants treated by predoctoral students. Thirty-seven veneered zirconia single crowns in 17 participants (9 men and 8 women; mean age 62.5 years) were prepared as abutment teeth for a clasp-retained RDP with a metal framework: 22 crowns with an occlusal rest seat and 15 crowns with both an occlusal rest seat and retentive clasps. The mean follow-up time was 4.2 years (2.9 to 5.4 years). In a clinical examination, the anatomic form of the crown, marginal fidelity (the border between the crown and the tooth was felt with an explorer), wear of the ceramic surface in the rest seat, and fracture of the veneering porcelain were examined and assessed as good, acceptable, or unacceptable. The retention and stability of the RDPs were recorded as good, moderate, or poor. The complications found were fracture of the veneering porcelain (11%) and fracture of the o...Continue Reading

Associated Clinical Trials

References

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Apr 16, 2014·The Journal of Prosthetic Dentistry·Carla Müller RamosAna Flávia Sanches Borges
May 21, 2014·The Journal of Prosthetic Dentistry·Juha PihlajaAune Raustia
Jul 2, 2014·The Journal of Prosthetic Dentistry·Emily R BatsonGustavo Mendonça
Sep 27, 2014·The Journal of Prosthetic Dentistry·Atsushi NishigoriJeffrey A Platt
Oct 4, 2014·The Journal of Prosthetic Dentistry·Brian D FlinnLloyd A Mancl

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Citations

Mar 25, 2019·Journal of Prosthodontic Research·Akihiro TanakaShuichiro Yamashita
Mar 23, 2021·The Journal of Advanced Prosthodontics·Saurabh ChaturvediEbrahim Alsubaiy

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