Zirconium dioxide full porcelain tooth and preparation method thereof

Abstract

The invention relates to a zirconium dioxide full porcelain tooth which comprises a false tooth fixing bridge structure and a glaze porcelain layer which covers the outer surface of the false tooth fixing bridge structure, wherein the false tooth fixing bridge structure is made of a zirconium dioxide material and comprises a plurality of inner false tooth crowns which are mutually bonded and supporting bodies which can be sleeved and bonded onto a tooth. The interiors of the supporting bodies are hollow and are respectively connected to both sides of each inner false tooth crown, and the glazeporcelain layer is made of a porcelain material. The invention also provides a manufacturing method of the zirconium dioxide full porcelain tooth. The method comprises the following steps of collecting data, cutting and grinding the false tooth fixing bridge structure, firing and coating porcelain for decoration. The zirconium dioxide full porcelain tooth has no off-smell and no toxicity to humanbodies, cannot change the color of the gingival, has high strength and is suitable for manufacturing false teeth with large-span fixing bridge structures.

Description

technical field [0001] The invention relates to a denture, in particular to a zirconium dioxide all-ceramic tooth and a preparation method thereof. Background technique [0002] Dentures currently used clinically, the inner crown is usually made of nickel-chromium alloy material, the denture manufacturing process often needs to add beryllium, because the denture needs to be bonded in the oral cavity for a long time, but long-term contact with beryllium in the denture will cause Harmful to the human body, and some people, especially women, will have an allergic reaction to nickel, which will darken the gums and harm health and beauty. Moreover, if the denture inlaid in the oral cavity is a metal-containing porcelain crown, it will be affected or even removed when head X-ray, CT, and MRI examinations are required. [0003] In addition, there are also dentures made of cast-type all-ceramic inner crowns (that is, cast porcelain). The cast porcelain material is relatively transp...

AI Technical Summary

Problems solved by technology

[0002] Dentures currently used clinically, the inner crown is usually made of nickel-chromium alloy material, the denture manufacturing process often needs to add beryllium, because the denture needs to be bonded in the oral cavity for a long time, but long-term contact with beryllium in the denture will cause Harmful to the human body, and some people, especially women, will have an allergic reaction to nickel, which will darken the gums and harm health and beauty

Moreover, if the denture inlaid in the oral cavity is a metal-containing porcelain crown, it will be affected or even removed when head X-ray, CT, and MRI examinations are required.

[0003] In addition, there are also dentures made of cast-type all-ceramic inner crowns (that is, cast porcelain). The cast porcelain material is relatively transparent, and it is not suitable for cast porcelain restorations for teeth with darker colors; because the cast porcelain material is not strong enough, the back teeth It is not suitable for cast porcelain restoration, and the denture fixed bridge structure made of cast porcelain material can only have a maximum of 3 units, that is, the denture fixed bridge structure including a single inner crown (including the inner crown and the supports on both sides)

[0004] At present, there are also dentures that use alumina materials to make inner crowns, but because the strength of alumina materials is not high enough, they are only suitable for single dentures, not suitable for dentures with long-span fixed bridge structures

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