Preparation method of aesthetic all-zirconia restoration body

A zirconia and restoration technology, applied in the field of the preparation of aesthetic full zirconia restorations, can solve the problems of poor process stability, unable to fully meet the requirements of the aesthetic effect of anterior teeth restoration, single light transmittance of restorations, etc. simple effect

Inactive Publication Date: 2012-07-18
SHENZHEN UPCERA DENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the above-mentioned existing all-zirconium restoration technology, the present invention provides a method for preparing an aesthetic all-zirconia restoration, which solves the problem that the coloring of the restoration is affected by human factors in the existing all-zirconium restoration technology, and the process stability is relatively low. poor, and the light transmittance of the restoration is relatively simple, which cannot fully meet the requirements of the aesthetic effect of anterior teeth restoration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present invention is a kind of manufacturing method of aesthetic all-ceramic zirconia prosthesis, adopts CAD / CAM system. A digital model is built on the computer, and the shape of the restoration is designed by computer aided. 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. Take the former single crown restoration as an example, the specific steps are as follows: Step 1, use the corresponding Altron colored zirconia porcelain blocks according to the colorimetric results of the doctor.

[0032] Step 2: Perform routine preparation according to the preparation standards for all-ceramic restorations; the occlusal surface should be ground to 1.0 mm, the relative axial surface convergence angle should be 6-8°, and the connection between the axial wall and the occlusal surface should be blunt. Then clinical impressions and models are made, and accurate models a...

Embodiment 2

[0041] The transparent treatment solution for the incisal end of the full zirconium crown used in step 6 is an aqueous solution of yttrium chloride glycerol with a solute concentration of 10 wt %; the treatment method is soaking, and the soaking time is 30 minutes.

[0042] The drying process in step 7 adopts drying in an oven, and the drying time is 60 minutes.

[0043] In the step 8, the sintering temperature is 1450° C., and the holding time is 5 hours.

Embodiment 3

[0045] The transparent treatment solution for the incisal end of the full zirconium crown used in step 6 is an aqueous solution of ethylene glycol with a solute concentration of 73 wt% yttrium acetate; the treatment method is to soak for 0.5 minutes, and then brush twice.

[0046] In the drying process in step 7, the dental crown is dried under an infrared lamp, and the drying time is 60 minutes.

[0047] In the step 8, the sintering temperature is 1600° C., and the holding time is 2 hours.

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Abstract

The invention relates to a preparation method of an aesthetic all-zirconia restoration body. The process comprises the steps of: clinically making an impression and a model after tooth preparation, collecting the digital impression, establishing a digital model, designing the shape of the restoration body by being assisted with a computer, cutting into the shape of the restoration body by a digital control lathe, try-wearing on the model, adjusting the outline form, polishing, coloring, glazing, and completing the fabrication of final restoration body. The restoration body is colored by using a coloring zirconia porcelain piece; the coloring process is influenced little by personal factors; an all-zirconium-crown cutting end transparent handling liquid is used to handle the presintered tooth crown, so that the color and the transparence of the zirconia all-porcelain tooth change gradually, so that an ideal aesthetic effect is achieved. The preparation process is free of porcelain coating. The method has no porcelain fracture danger, and the operation is simple. The prepared tooth is few, so 1mm of preparation space is enough to use. The zirconia all-porcelain tooth has excellent biocompatibility, high strength, good transparence and glossiness, and natural and lifelike colors. CAD/CAM (Computer-Aided Design/computer-aided manufacturing) is used for designing and completing the processing, thereby ensuring the marginal adaption and precision of the zirconia all-crown porcelain tooth.

Description

technical field [0001] The invention belongs to the technical field of oral ceramic materials and preparation thereof, and in particular relates to a preparation method of an aesthetic full zirconia restoration. Background technique [0002] In recent years, more and more patients and physicians choose all-ceramic materials as permanent restorations in the oral cavity. All-ceramic materials have incomparable advantages over metal, it will not stain the gums, will not have the problem of metal base exposure, there is no corrosion in the mouth, 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 people in the entertainment industry. In addition, patients need to do cranial X-ray, CT, and MRI examination rooms and do not need to remove dentures. At the same time, all-ceramic materials have good biocompatibility, no irritatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/083
Inventor 王鸿娟黄东斌严庆云何玲玲郑艳春
Owner SHENZHEN UPCERA DENTAL TECH
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