Preparation method of zirconia all-ceramic post/nail for dental restoration

A zirconia, dental technology, applied in the direction of dental preparations, dentistry, dental prosthesis, etc., can solve the problems of easy falling off of fillings, achieve outstanding bonding effect, reduce tooth tissue damage, and have broad application prospects

Inactive Publication Date: 2017-08-25
于金华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Preparation method of zirconia all-ceramic post/nail for dental restoration
  • Preparation method of zirconia all-ceramic post/nail for dental restoration
  • Preparation method of zirconia all-ceramic post/nail for dental restoration

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the drawings and embodiments.

[0032] Such as Figure 1-4 Shown.

[0033] A preparation method of zirconia all-ceramic post / nail for dental restoration, which comprises the following steps:

[0034] First, collect the size parameters of the piles / nails required for the repair site;

[0035] Secondly, make corresponding plaster models of piles / nail wax sticks according to the collected size parameters;

[0036] Third, input the data of the plaster model into the CAD / CAM database;

[0037] Fourth, use CAD / CAM technology to control mechanical processing equipment to cut and process zirconium dioxide blocks of the required shape. The shrinkage rate (generally 20%) during the sintering process of the zirconium dioxide blocks should be taken into account during the cutting process. The corresponding size is correspondingly enlarged (enlarged to 125% of the actual size);

[0038] Fifth, put the cut zirconium dioxi...

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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 raw materials for dental restoration, in particular to a method for preparing zirconia all-ceramic posts / nails for dental restoration. Background technique [0002] A large area of ​​tooth defect caused by dental caries or trauma, due to the weak tissue of the remaining tooth, the filling is easily broken or falling off. The most commonly used clinical solution is to use metal nails or fiber posts to enhance retention. Metal nails are easily corroded by oral saliva, fluids in the dentin tubules and other liquids, which will then cause discoloration of the tooth and restoration and loosening of the retaining nails, leading to failure of the restoration. The strength of the fiber post is poor, the bonding effect with the dental tissue and resin material is not clear, and it is easy to break, and the end of the fiber post is cylindrical, and it is easy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C5/50A61C5/20A61K6/02A61K6/08A61K6/884
Inventor 于金华翁国武周洲闫明
Owner 于金华
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