Material for dental restoration and method for preparing dental restoration

Abstract

The invention discloses a material for dental restoration. The material is prepared from a slurry material or a powder material, wherein the powder material is prepared from the following raw materials by mass percent: 75-99.5% of a ceramic material, 0.5-10% of a tourmaline material and 0-15% of rare earth elements; the slurry material is prepared from the powder material, water and additives, wherein the mass ratio of the powder material to the water is equal to (2 to 6.5) to (3.5 to 6), and mass of the additives account for 0.5-5% of the total mass of the slurry material. According to a preparation method of the material for the dental restoration, the dental restoration is prepared by molding the material for the dental restoration. By adding tourmaline and rare earth into the ceramic material, not only is the attractive dental restoration with good mechanical property and good biocompatibility prepared, but the prepared dental restoration is also enabled to have good far infrared characteristic at the same time. According to the preparation method, the technologies such as grinding and milling can be carried out without needing presintering, and a special mould is not needed, so that the process is greatly simplified, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a material for dental restorations and a method for preparing dental restorations. Background technique [0002] Tourmaline is a precious silicate mineral resource, containing more than 10 kinds of trace elements beneficial to human body, such as magnesium, aluminum, iron, boron, etc. Tourmaline of gem grade is also called "tourmaline". In 1703, the Dutch discovered that this stone, in addition to showing strange colors under the sun, also has the function of absorbing dust and grass clippings, so they named it "Ash Stone". In 1768, the piezoelectricity and pyroelectricity of tourmaline were first discovered by the famous Swedish scientist Linnes. In 1880, French brothers Pierre and Jacques confirmed the pyroelectric and piezoelectric properties of tourmaline, so they named it "tourmaline". In 1989, Japanese scholars Nakamura and Kubo discovered that when there is no external electric ...

AI Technical Summary

Problems solved by technology

[0005] Application number 200510102755.3 discloses a zirconia all-ceramic material, which can be used to obtain dental restorations with good mechanical properties and aesthetics, but the sintering temperature of this material needs to be determined according to the particle size, and porous ceramics and After pre-sintering, the process is cumbersome and the cost of materials is high, which greatly increases the production time and cost of dental restorations