Considerations When Using Zirconia for Implant-retained Prostheses

Abstract

Recently, with the development of CAD/CAM technology, the use of prosthetic devices made with zirconia has been increasing, in view of the material's fracture strength, biocompatibility, and esthetics. However, there are few reports on its long-term prognosis. There are three considerations regarding the effective use of zirconia to overcome the complications of implant prostheses. Firstly, zirconia should be used for the stress-bearing area to reduce the risk of fracture. Secondly, the prosthesis should be a screw-retained or frictional-retained type. Thirdly, the intraoral luting technique should be used to achieve the best passive fit.

As there is little data on the use of zirconia, it is important to use zirconia correctly based on both physiological and theoretical properties. This article examines the effective use of zirconia implant prostheses.