Color card standard sample of zirconia denture as well as preparation method and use method

Abstract

The invention relates to a color card standard sample of a zirconia denture as well as a preparation method and a use method. A dense gradient nanostructure with a bionic tooth matrix and an enamel fish scale-like smooth surface structure similar to natural teeth are prepared by using a hydrothermal method, a 3D-colloidal molding process and a surface layer coating technology. The color card standard sample is prepared by adopting a zirconia material, and can directly transmit optical information such as texture and permeability of a zirconia repair material; meanwhile, the color masking effect of discolored teeth is taken into account, so that the design is more scientific and reasonable, and the colorimetric deviation caused by different materials is eliminated; by adopting a bionic zirconia denture color card standard sample, the texture of tooth enamel and the texture of dentin can be compared, and further optical texture information in an oral cavity is accurately transmitted; information of to-be-processed denture at the processing end is favorably acquired, so that the zirconia denture consistent with the colorimetric result is prepared.

Description

technical field [0001] The invention relates to a zirconia denture color card standard sample, a preparation method and a use method. Background technique [0002] Restoring or reconstructing the optical texture of natural teeth through dentures is an important part of oral restoration. The goals of this work are defined by the dentist in discussion with the patient, and the task of manufacturing the restorations is carried out by the fabricator, which usually works at a remote location from the surgeon. The method of information exchange between the processing factory and the doctor on the optical texture of the tooth and the optical texture restoration and reconstruction technology used by it should become the key to the failure of the restoration. This communication is usually simplified as color comparison in the industry, that is, a set of color guides is used as a medium for optical texture communication. [0003] 1. Existing colorimetric methods and principles: [...

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Problems solved by technology

[0016] Due to its excellent physical and chemical properties and biocompatibility, zirconia materials have become the most commonly used materials in the field of oral restoration. However, due to the defects in the preparation process of cutting ceramic blocks, the aesthetic effects (color, translucency) often do not achieve the texture of natural teeth and are therefore not used to prepare standard colorimetric samples

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