Dental crown and manufacturing method thereof

Abstract

The invention provides a dental crown and a manufacturing method thereof. The manufacturing method mainly comprises the steps: carrying out mold impression in an oral cavity of a patient or scanning in the oral cavity, to obtain patient oral cavity internal image data comprising an upper outer edge shape of a patient primary tooth / tooth implantation abutment, and an environment contour edge together formed by the patient primary tooth / tooth implantation abutment and adjacent teeth of the patient primary tooth / tooth implantation abutment; according to the image data, designing the dental crown, then carrying out selective laser melting (SLM) with a metal powder as a material to form a metal inner crown, and next piling ceramics and glazing; and consistently, fast and accurately manufacturing to complete the dental crown. The dental crown completed by using the method is more careful in protection of the patient primary tooth / tooth implantation abutment, more comfortable in use and durable in use.

Description

technical field [0001] The invention relates to a dental crown and a manufacturing method thereof, in particular to a comfortable and durable artificial dental crown and a manufacturing method thereof. Background technique [0002] In dentistry, a crown refers to the part of the tooth exposed to the gums in a broad sense. The dental crowns referred to in the market today are mostly "artificial dental crowns" (or braces) in the narrow sense. The said dental crown of the present invention is actually artificial dental crown, and claims with dental crown. [0003] Press, artificial crowns are mainly used to repair or restore teeth. When tooth decay or lesions or various injuries are difficult to achieve restoration through simple fillings, for the sake of health and to achieve the purpose of tooth plastic beauty, at this time, under the advice of the dentist, you can use the crown (ie According to the shape of the upper outer edge of the patient's original tooth / implantation...

AI Technical Summary

Problems solved by technology

[0009] 1. The center of the metal inner crown (11) must match the inner edge of the patient's original tooth / implantation tooth (2) (Abutment), and then use its outer edge as the inner edge of the color-shading plastic layer (12), Therefore, the metal inner crown (11) determines the core quality of the dental crown (1), but from the foregoing, the metal inner crown (11) must go through the patient's oral impression → plaster cast → plaster cast sampling → installation and occlusal It can only be completed by using the device→wax filling and carving and shaping→finishing the wax model→embedding casting→centrifugal casting, so the process is cumbersome

[0010] 2. In addition, the external crown of the tooth must be finished by finely repairing the external crown → three pushes of porcelain and one glaze, and after completion, it must be matched with manual order delivery → clinical correction is suitable for the patient to wear the patient's oral impression plaster filling Sampling and other steps to achieve mold plaster, so cumbersome steps must be taken to achieve customer customization

[0011] 3. Since the inner edge of the metal inner crown (11) is formed into an equal thickness along the outer edge of the patient's original tooth / implantation treatment table tooth (2) (Abutment), and the average thickness is smaller than the color-shading shaping porcelain layer (12 ), so the metal inner crown (11) is usually not used as a contact layer against occlusal, and the occlusal contact layer mainly relies on the opaque shaping porcelain layer (12) on the outer edge of the metal inner crown (11), but the masking Color molding porcelain layer (12) is a porcelain thing, is easy to crack easily usually

Images