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A kind of material for dental prosthesis and the method for preparing dental prosthesis

A dental restoration and slurry technology, which is applied in dental preparations, dentistry, pharmaceutical formulations and other directions, can solve the problems of cumbersome procedures, increase the production time and cost of dental restorations, and high material costs, and achieve good biocompatibility, The effect of good far-infrared characteristics and good mechanical properties

Active Publication Date: 2020-01-14
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 0.5% calcium lithium tourmaline, 1% praseodymium doped with 98.5% alumina to make dental restorations - single crown:

[0041] (1) Analyze the tooth quality of the patient's diseased area and the condition of the surrounding tissue, and obtain the data information of the diseased area;

[0042] (2) Obtain a three-dimensional physical model conforming to the patient's diseased area through computer modeling, and design the overall model of the required dental restoration;

[0043] (3) Mix alumina material, calcium lithium tourmaline material, praseodymium element, PEG-200 and deionized water. Among them, the calcium lithium tourmaline material is added to the alumina material at a mass fraction of 0.5%, and the praseodymium element is added at a mass fraction of 1% to the alumina material and mixed until uniform; the mass ratio of the mixed material to deionized water is 4.5:5.5, and the content of PEG-200 is 1 %;

[0044] (4) The mixed material is placed in a ball mil...

Embodiment 2

[0049] 2% (Mg 2 Al)Al 6 Si 6 o 18 (BO 3 ) 3 (OH) 4 , 0.5% lanthanum doped with 97.5% zirconia to make dental restorations - three bridges:

[0050] (1) Analyze the tooth quality of the patient's diseased area and the condition of the surrounding tissue, and obtain the data information of the diseased area;

[0051] (2) Obtain a three-dimensional physical model conforming to the patient's diseased area through computer modeling, and design the overall model of the required dental restoration;

[0052] (3) Zirconia material, (Mg 2 Al)Al 6 Si 6 o 18 (BO 3 ) 3 (OH) 4 materials, lanthanum, sodium citrate and deionized water are mixed. Among them, (Mg 2 Al)Al 6 Si 6 o 18 (BO 3 ) 3 (OH) 4 The material is added into the zirconia material at a mass fraction of 2%, and the lanthanum element is added at a mass fraction of 0.5% to the zirconia material and mixed until uniform; the mass ratio of the mixed material to deionized water is 6.5:3.5, and the content of sodiu...

Embodiment 3

[0058] 1.5% non-alkali ferrite tourmaline, 0.5% neodymium doped with 98.5% zirconia to make dental restorations - double bridge:

[0059] (1) Analyze the tooth quality of the patient's diseased area and the condition of the surrounding tissue, and obtain the data information of the diseased area;

[0060] (2) Obtain a three-dimensional physical model conforming to the patient's diseased area through computer modeling, and design the overall model of the required dental restoration;

[0061] (3) Mix zirconia material, alkali-free ferrite tourmaline material, neodymium element, PMAA / PAA and deionized water. Among them, the alkali-free iron tourmaline material is added to the zirconia material at a mass fraction of 1.5%, and the neodymium element is added to the zirconia material at a mass fraction of 0.5% and mixed until uniform; the mass ratio of the mixed material to deionized water is 5:5, and the content of PMAA / PAA 1%;

[0062] (4) The mixed material is placed in a ball m...

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Abstract

The invention discloses a material for dental prosthesis, which is divided into a slurry material or a powder material; the powder material is composed of a ceramic material with a mass fraction of 75%-99.5%, and a mass fraction of 0.5%-10 % tourmaline material and 0%‑15% rare earth elements by mass fraction. The slurry material is composed of the powder material, water and additives; the mass ratio of the powder material to water is 2-6.5:3.5-6; the additive mass is 0.5% of the total mass of the slurry material- 5%. The preparation method is to make the dental restoration by forming the material used for the dental restoration. By adding tourmaline and rare earth to the ceramic material, not only the dental restoration with good mechanical properties, good biocompatibility and aesthetics can be produced, but also the produced dental restoration can have excellent far-infrared properties. The preparation method does not need pre-sintering and then grinding, milling and other processes, and does not need a special mold, which greatly simplifies the process and reduces the cost.

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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/10C04B35/48C04B35/443C04B35/622C22C29/12
CPCA61K6/802A61K6/818A61K6/829C04B35/10C04B35/443C04B35/48C04B35/481C04B35/622C04B2235/3427C04B2235/3463C04B2235/349C04B2235/442C04B2235/447C22C29/12
Inventor 朱东彬孙晨张晓旭楚锐清吴民强
Owner HEBEI UNIV OF TECH
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