Since the dawning of the new era of Porcelain Fused to a Ceramic Sub-structure, there has been a rapid shift toward higher strength, more esthetically pleasing prosthetics.  With its unmatched strength and metal-free natural esthetics, Porcelain Fused to Zirconia has quickly become the preferred crown of choice.  With the many Zirconia crowns being made, and the many laboratories making these futuristic alternatives to conventional Porcelain Fused to Metal, it stands to reason that there would arise some problems along the way.

One such problem is with regards to the delaminating of the porcelain from the Zirconia substructure.  The answer to this problem relies in the fabrication and handling of the materials both during processing and seating of the crown.

Because of the recent conception of the process of fabricating such materials and the difference in the many CAD/CAM systems required to do so, dental technicians have been indirectly given the task of perfecting this new trade.  Although the software from each of the systems mimics similarities to one another, they differ greatly in the design process.  This is what separates success from failure.  Ceramists have always been taught that porcelain must not exceed 2.0mm of unsupported porcelain, yet many CAD/CAM systems do not have the proper tools to ensure this goal is achieved.  The Pictures show how the system we use here at Iverson Dental Laboratories does just that.