Dental Techniques in Zirconia All Ceramic Restoration

—Key Points of Layering Method and Press Method—

Abstract

CAD/CAM applications in the prosthodontic field have expanded through improved scanning accuracy, design freedom, operation and dental technicians' efforts. The manufacturing and reproduction accuracy of the copings and frameworks has been progressing day by day. Furthermore, the materials to be used for milling are varied such as wax, resin, metals, ceramics and others. The quality of each material itself has been developing.
Yttria-stabilized zirconia with a single-phase crystal has a good biocompatibility as well as an excellent flexural strength. This material now is being studied as a new material for clinical cases for which we could not have expected good results before. However, because this is a new material and technique, we have not yet established the knowledge and know-how for the aesthetic restoration, making the most of this excellent material. At present, the information is not sufficient as to the acquisition of the aesthetics which is well-balanced with the surrounding periodontal tissues, and also as to the stable technique on a long term basis which enables the acquisition.
In this paper, the author is going to discuss with the clinical steps what dental technicians should note when they use zirconia material in the their cases.