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Method for preparing veneer ceramic-free full anatomic form zirconia dental crown

A zirconia and dental crown technology, applied in the field of oral materials, can solve the problems of cumbersome porcelain decoration and porcelain baking process, easy to collapse porcelain on the surface of the restoration, achieve excellent biocompatibility, ensure edge tightness and accuracy, high intensity effect

Active Publication Date: 2012-01-04
SHENZHEN UPCERA DENTAL TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems existing in the above-mentioned prior art, and provides a method for preparing a full-anatomical zirconia crown without porcelain decoration, which solves the problem of easy chipping of the surface of the prosthesis and the cumbersome process of porcelain decoration in the prior art. Problems, and ensure the edge tightness and accuracy of zirconia full crown porcelain teeth

Method used

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Experimental program
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Embodiment

[0018] The invention adopts highly transparent zirconia material with a light transmittance of 0.317 to make the denture.

[0019] The zirconium dioxide material has no metal ion penetration, very good biocompatibility, very high flexural strength, good light transmission, and the color after dyeing tends to be more natural teeth.

[0020] The method for making the full anatomical zirconia crown without porcelain of the present invention adopts the CAD / CAM system, and the process is to clinically make impressions and plaster models after tooth preparation, scan with a three-dimensional model scanner, and establish a digital crown on a computer. Model, computer-aided design of prosthetic morphology. The CNC lathe is cut into the shape of the restoration, tried on the model, adjusted the shape, polished, painted, and glazed to complete the final restoration. Taking the posterior tooth restoration as an example, the specific steps are as follows:

[0021] Step 1: Carry out rout...

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Abstract

The invention relates to a method for preparing a veneer ceramic-free full anatomic form zirconia dental crown. The method comprises the steps of: adopting a CAD (Computer-aided Design) / CAM (Computer-aided Manufacturing) system, and clinically fabricating an impression and a plaster model after tooth preparation; scanning by using a three-dimensional model scanner, establishing a digital model ona computer, and designing a dummy form through computer assistance; cutting a dummy form through a numerically-controlled lathe, trying wearing on the model, and adjusting the form; burnishing; painting; and glazing, and finally completing the fabrication of the dummy. The veneer ceramic-free full anatomic form zirconia dental crown provided by the invention has high strength and good light transmission, the treatment of applying ceramics is not required, and no hazard of ceramic fracture exists; the degree of precision is high due to computer control during the overall process; and the grinding amount for tooth preparation is small, and an ideal effect can be achieved with 1mm space.

Description

technical field [0001] The invention relates to a method for preparing a zirconia crown, in particular to a method for preparing a full-anatomical zirconia crown without porcelain decoration, and belongs to the field of oral cavity materials. Background technique [0002] All-ceramic teeth are a kind of porcelain teeth, which is a high-tech dental restoration method developed in recent years. The biggest difference from metal porcelain teeth is that the inner crown is a layer of all-ceramic transparent support skeleton, and then a layer of porcelain powder with a color similar to that of natural teeth is baked on its outer crown. All-ceramic teeth have no metal to block the light, and can realistically reproduce the color and translucency of natural teeth. It is the restoration with the best aesthetic effect and is highly praised by successful people and performers. After several years of vigorous development, zirconia all-ceramic restoration technology has become the first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C5/10A61C5/77
Inventor 王鸿娟司文捷严庆云郑艳春何玲玲
Owner SHENZHEN UPCERA DENTAL TECH
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