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A method for making a color-shielding veneer in an oral crown

A production method and veneer technology, applied in the direction of manufacturing tools, additive manufacturing, and adding protective layers, can solve the problems of high permeability limiting the range of glass ceramics, etc., to reduce technical sensitivity, expand the scope of clinical aesthetic treatment, and improve strength and the effect of treatment efficiency

Active Publication Date: 2022-06-28
合肥市口腔医院
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Problems solved by technology

However, for a long time, the scope of clinical application of glass ceramics has been limited because of its high permeability.

Method used

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  • A method for making a color-shielding veneer in an oral crown

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Embodiment Construction

[0027] The following is a detailed description in conjunction with specific embodiments, but the protection scope of the present invention is not limited by the specific embodiments.

[0028] like figure 1 As shown in the figure, the present invention provides a method for making a color-masking veneer in a full crown for oral restoration, and the steps are as follows:

[0029] S1. The digital three-dimensional model of the crown preparation can be obtained by using the oral scanner for the abutment preparation with the shoulder trimmed; the gypsum model of the crown restoration preparation can also be prepared by traditional impression taking, and then the crown restoration plaster can be prepared by scanning equipment. The volume model is converted into a digital three-dimensional model;

[0030] S2. After importing the digital model into the oral computer-aided design (CAD) software to select the veneer restoration, draw the position of the veneer termination line on the l...

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Abstract

The invention discloses a method for making a color-shielding veneer in an oral crown. Based on a digital optical scanner and denture design software, a color-shielding veneer is produced by using 3D printing technology. The color-shielding veneer uses low-transmittance ceramic materials. Through the design of the veneer range on the digital abutment model, crystallization after the 3D printing technology is completed, it will be placed on the abutment preparation to cover the discolored tooth, and facilitate the restoration of the high-transparency all-ceramic material crown. The veneer made by this method expands the scope of clinical application of high-permeability ceramic materials such as glass ceramics, enhances the strength of the restoration, and improves the patient's experience and satisfaction in seeing a doctor.

Description

technical field [0001] The present application relates to the field of oral prosthodontics, and in particular, to a method for making a veneer. Background technique [0002] Oral clinical restorative treatment of depigmented teeth or discolored dead pulp teeth in the aesthetic area often uses a metal-porcelain full crown with opaque effect or a low-permeability oxide ceramic plus a high-permeability modified porcelain full crown. This type of full crown restoration consists of two different materials, which are combined through a special sintering process. The joint interface often becomes the weak part of the full crown restoration, resulting in clinical damage of the full crown restoration. In addition, the strength of decorative ceramics is far lower than that of oxide ceramics, and also lower than that of glass ceramics. The surface strength of this type of restoration is also not high. [0003] Metal-porcelain full crowns or low-permeability oxide ceramics plus high-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C5/30A61C13/00
CPCA61C5/30A61C13/0019A61C13/0004
Inventor 许晓波龚语林谭晓蕾边华琴余翻翻王冕
Owner 合肥市口腔医院
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