Abstract
Purpose. The purpose of this retrospective case series is to evaluate the clinical advantages and limitations of monolithic zirconia restorations for full arch implant supported restorations and report the rate of complications up to 2 years after insertion. Materials and Methods. Fourteen patients received implant placement for monolithic zirconia full arch reconstructions. Four implants were placed in seven arches, eleven arches received six implants, two arches received seven implants, two arches received eight implants, and one arch received nine implants. Results. No implant failures or complications were reported for an implant survival rate of 100% with follow-up ranging from 3 to 24 months. Conclusions. Monolithic zirconia CAD-/CAM-milled framework restorations are a treatment option for full arch restorations over implants, showing a 96% success rate in the present study. Some of the benefits are accuracy, reduced veneering porcelain, and minimal occlusal adjustments. The outcome of the present study showed high success in function, aesthetics, phonetics, and high patient satisfaction.
Highlights
Full arch implant supported restorations have been documented to have high success rates [1,2,3,4,5,6]
Clinical data in this study was obtained from the implant database (ID) in the Ashman Department of Periodontology and Implant Dentistry at New York University College of Dentistry
Improved clinical performance can be expected to be achieved by using monolithic zirconia restorations [2, 10, 11]
Summary
Full arch implant supported restorations have been documented to have high success rates [1,2,3,4,5,6]. The use of zirconia for frameworks is an option that has been proposed [2, 7, 8]. Zirconium oxide is a material that has shown increased popularity in contemporary dentistry [3, 9]. Many studies have shown excellent physical, mechanical, biological, and chemical properties of this material [3, 5, 9, 10]. Some reports have documented veneering ceramic fractures (chipping) [1,2,3,4,5,6,7,8,9,10,11,12] and fractures of the zirconia substructure [1, 3,4,5]
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