Cast porcelain tooth veneer production method

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...

AI Technical Summary

Problems solved by technology

At present, traditional lost-wax casting porcelain veneers are greatly affected by the technical level of technicians, while the edge adhesion of CAD\CAM all-ceramic veneers is not as good as that of lost-wax casting porcelain veneers

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