Preparation method of zirconia all-ceramic tooth

Abstract

The invention discloses a preparation method of a zirconia all-ceramic tooth. The preparation method is characterized by comprising the following steps: acquiring patient data, establishing a digital model, determining the form of a dental crown prosthesis, typesetting, exporting STL format data, completing typesetting and customizing a support retainer through a 3D printer, carrying out spray forming on a zirconia dental crown, carrying out post-treatment, pre-dyeing, drying sintering, polishing, adjusting and glazing. The dental crown which is directly used for repairing the human body can be directly produced; a 3D printing spraying technology is adopted, and the material utilization rate is increased; the dental crown is small in thickness, high in strength and suitable for adults; due to the design of the soluble support material, the soluble support material can be quickly dissolved, is easy to remove and free of residues, can break through the limitation of post-treatment support removal, and realizes the design of any shape; and cutting and polishing are not needed, and the labor cost and the breaking risk in the machining process are reduced.

Description

technical field [0001] The invention relates to denture manufacturing technology, in particular to a method for preparing zirconia all-ceramic teeth. Background technique [0002] All-ceramic teeth, also known as all-ceramic crowns, are restorations made of ceramic materials that can completely cover the crown. Zirconia material is currently the most commonly used repair material in fixed denture processing, mainly used in crown, bridge, inlay, veneer and other restorations. Zirconia is a biologically inert ceramic with good translucent appearance, high strength and density, no barrier to X-rays, better biocompatibility than metal materials, and long-lasting service life in clinical practice. Existing processing methods mostly use CAD (Computer Aided Design, computer-aided technology), CAM (Computer Aided Manufacturing, computer-aided manufacturing) technology to cut zirconia zirconia block, and sinter the green body to obtain the finished crown. The material utilization r...

AI Technical Summary

Problems solved by technology

In addition, in order to meet the needs of customers for different parts of the crown, technicians need to choose different types and thicknesses of materials according to the requirements, and it takes a lot of time to typesetting customer data

Not only that, the use of zirconia to process the bridge will greatly reduce the material utilization rate and increase the risk of fracture

[0004] In addition, light-cured ceramic 3D printing equipment can also make zirconia crowns, but the current existing ceramic 3D printing equipment has low solid phase content of ceramic slurry, high material shrinkage, easy pollution of the material use environment, and long degreasing and sintering time , not suitable for mass production

Images