Making method for bionic ceramic dental prosthesis

Abstract

The invention relates to a making method for a bionic ceramic dental prosthesis. The method comprises the steps that conventional 3mol% yttrium-stabilized zirconium dioxide ceramic with high strengthand low transparency and ceramic with high transparency are selected as prefabricated powder; a blank block / disc is pressed in a layered mode; in a transition buffer layer from the lower surface of ablank to the upper surface, the proportion of the 3mol% yttrium-stabilized zirconium dioxide ceramic is gradually decreased from 100% to 0, and the proportion of the ceramic with low strength and hightransparency is gradually increased from 0 to 100%; an occlusal surface or an attractive area of a CAD digital model of the dental prosthesis is placed on a bionic performance / color layer, and an axial surface area is placed on a high-strength anti-fracture layer; and making is completed by utilizing dental prosthesis manufacturing equipment. The method has the advantages that the problems that ajaw tooth is excessively worn by a high-strength single-layer full zirconia prosthesis, no stress buffer exists in the all-ceramic prosthesis implanting process, and the prosthesis is prone to beingfractured in the long time when totally adopting a bionic abrasion-resistant ceramic material can be solved, and meanwhile, the bionic color effect of the prosthesis can be achieved.

Description

technical field

[0001] The invention relates to the production of a dental prosthesis, in particular to a production method of a bionic ceramic dental prosthesis. Background technique

[0002] At present, zirconia has become a commonly used material for repairing tooth defects and dentition defects due to its excellent biocompatibility and bending strength. However, due to the overstrengthening of the mechanical properties of the currently used full zirconia crowns, there are problems of excessive wear on the opposing teeth during clinical use and no stress buffering during implant all-ceramic restorations. And because the color is single, it cannot meet the needs of aesthetic restoration.

[0003] The invention can solve the problems of high strength, single-color single-layer full zirconia restoration on the excessive wear of the opposing teeth and insufficient aesthetic transparency, the problem of no stress buffering when implanting all-ceramic restorations, and the res...