Preparation method of zirconium dioxide all-ceramic post/pin for dental restoration

Abstract

A preparation method of a zirconium dioxide all-ceramic post / pin for dental restoration is characterized by comprising the following steps: firstly, acquiring the size parameters of a post / pin required by a restoration part; secondly, manufacturing a corresponding post / pin wax rod plaster model according to the acquired size parameters; thirdly, inputting data of the plaster model into a CAD / CAM database; fourthly, utilizing the CAD / CAM technology to control machining equipment to cut and process a zirconium dioxide ceramic block of the required shape, wherein the corresponding sizes have to be amplified correspondingly under the consideration of the shrinkage ratio of the zirconium dioxide ceramic block in the sintering process during cutting; fifthly, placing the cut zirconium dioxide post / pin into a zirconium dioxide sintering furnace for sintering forming; sixthly, performing sand-blasting and cleaning treatment on the surface of the zirconium dioxide post / pin subjected to sintering forming; and seventhly, before use, performing surface pretreatment on the zirconium dioxide post / pin subjected to sand-blasting and cleaning treatment for later use. The preparation method provides a high-strength corrosion-resistant durable material for dental restoration, which is convenient to manufacture and use and is an ideal novel material for the dental department.

Description

technical field [0001] The invention relates to a method for preparing medical equipment, in particular to a method for preparing a raw material for dental restoration, in particular to a method for preparing a zirconia all-ceramic post / nail for dental restoration. Background technique [0002] Due to dental caries or trauma caused by a large area of ​​tooth defect, due to the weak remaining tooth tissue, fillings are easily broken or fall off. The most commonly used clinical solution is to use metal nails or fiber posts to enhance the retention. The metal nail body is easily corroded by liquids such as saliva in the oral cavity and dentinal tubule fluid, which in turn causes discoloration of the tooth and restoration and loosening of the retaining screw, resulting in restoration failure. The strength of the fiber post is poor, the bonding effect with the tooth tissue and resin material is not clear, and it is easy to break, and the end of the fiber post is cylindrical, and...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the fillings of large-area tooth defects are easy to fall off in clinical practice; there are various defects in the use of traditional metal nails or fiber posts to strengthen the retention, and so on. Defect) preparation method with zirconia all-ceramic post / nail

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