Cast porcelain tooth veneer production method

A production method and veneer technology, applied in dentistry, filling teeth, dental prosthetics and other directions, can solve the problems of the technical level of technicians, the edge adhesion is not as good as that of lost wax casting porcelain veneer, etc. synergistic effect

Active Publication Date: 2020-11-24
SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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AI Technical Summary

Problems solved by technology

At present, traditional lost-wax casting porcelain veneers are greatly affected by the technical level of technicians

Method used

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  • Cast porcelain tooth veneer production method
  • Cast porcelain tooth veneer production method

Examples

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Embodiment Construction

[0024] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0025] Embodiments of the present invention relate to a manufacturing method of cast porcelain dental veneer, such as figure 1 shown, including the following steps:

[0026] (1) Construct a diagnostic model through digital three-dimensional technology, and make the diagnostic model through three-dimensional printing, specifically as follows figure 2 shown, including the following sub-steps:

[0027] (11) Three-dimensional s...

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Abstract

The invention relates to a cast porcelain tooth veneer production method which comprises the following steps of: constructing a diagnosis model by a digital three-dimensional technology, and producingthe diagnosis model in a three-dimensional printing manner; based on the diagnosis model, producing a diagnosis finish for a patient by utilizing a temporary crown material; carrying out tooth preparation, impression taking and die stone cast pouring on the patient to obtain a working model on the basis of the diagnosis finish, and carrying out three-dimensional scanning and centric occlusion registration on the working model; carrying out space registration on the working model after tooth preparation and the diagnosis model so as to enable two models to be completely fit in a back tooth region, and constructing an edge line of each preparation body in a differential region of a front tooth lip surface by utilizing an NURBs curve; obtaining a veneer in a three-dimensional printing manner; and carrying out dewaxing casting directly by utilizing the veneer so as to obtain a cast porcelain material veneer. The cast porcelain tooth veneer produced by the invention achieves unification ofaesthetics and functionality after repair.

Description

technical field [0001] The invention relates to the technical field of dental veneer design, in particular to a manufacturing method of cast porcelain dental veneer. Background technique [0002] With the development of the economy and the improvement of people's living standards, people have higher and higher requirements for oral aesthetics. However, in reality, the appearance is often affected by tapered teeth, scattered gaps between teeth, and abnormal tooth color. The traditional treatment method mostly uses full crown restoration, but it will wear away a large amount of tooth tissue, resulting in frequent tooth and periodontal problems. How to preserve the dental tissue as much as possible under the premise of ensuring the appearance, health and function is the goal of the prosthodontist. Porcelain veneers have become a hot spot in minimally invasive restorations in recent years due to less tooth tissue removal. At present, traditional lost-wax casting porcelain vene...

Claims

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Application Information

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IPC IPC(8): A61C5/20
CPCA61C5/20
Inventor 曾德良蒋欣泉顾晓宇王洁刘畅曹玲燕
Owner SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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