Journal
JOURNAL OF DENTISTRY
Volume 42, Issue 6, Pages 660-663Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jdent.2014.02.021
Keywords
Resin bond; All-ceramic; Fixed dental prostheses; Single retainer; RBFDP; Surface retained
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Objectives: This study evaluated the clinical outcome of all-ceramic resin-bonded fixed dental prostheses (RBFDPs) with a cantilevered single-retainer design made from zirconia ceramic. Methods: Forty-two anterior RBFDPs with a cantilevered single-retainer design were made from yttrium oxide-stabilized zirconium oxide ceramic. RBFDPs were inserted using Panavia 21 TC as luting agent after air-abrasion of the ceramic bonding surface. Results: During a mean observation time of 61.8 months two debondings occurred. Both RBFDPs were rebonded using Panavia 21 TC and are still in function. A caries lesion was detected at one abutment tooth during recall and was treated with a composite filling. Therefore, the overall six-year failure-free rate according to Kaplan-Meier was 91.1%. If only debonding was defined as failure the survival rate increased to 95.2%. Since all RBFDPs are still in function the overall survival rate was 100% after six years. Conclusions: Cantilevered zirconia ceramic RBFDPs showed promising results within the observation period. Clinical Significance: Single-retainer resin-bonded fixed dental prostheses made from zirconia ceramic show very good mid-term clinical survival rates. They should therefore be considered as a viable treatment alternative for the replacement of single missing anterior teeth especially as compared to an implant therapy. (C) 2014 Elsevier Ltd. All rights reserved.
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