Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Glass ceramic for preparing dental restorations and preparation method of glass ceramic

A technology of glass ceramics and prosthetics, applied in the field of bioactive materials, can solve the problems of high brittleness and low mechanical strength, and achieve the effects of large output, simple and easy preparation process, and easy control of process parameters

Inactive Publication Date: 2015-11-25
GUANGXI NANNING ZHICUI SCI TECH CONSULTATION CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional bioglass materials generally have the disadvantages of high brittleness and low mechanical strength.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A glass-ceramic for making dental restorations, comprising the following raw materials in parts by weight: 58 parts of silicon dioxide, 18 parts of zirconia, 12 parts of phosphorus pentoxide, 8 parts of sodium fluoride, 8 parts of strontium oxide, carbonic acid 22 parts of sodium, 30 parts of zinc oxide, and 6 parts of ammonium polyacrylate.

[0026] Wherein, the particle diameter of sodium carbonate is 250nm, the particle diameter of zinc oxide is 500nm, and the relative molecular mass of ammonium polyacrylate is 1000.

[0027] Prepare the above-mentioned preparation method for making the glass-ceramic of dental restoration, comprise the following steps:

[0028] (1) Weigh silicon dioxide, zirconium oxide, phosphorus pentoxide, sodium fluoride, strontium oxide, sodium carbonate, zinc oxide and ammonium polyacrylate in parts by weight, mix and add in the orange pot;

[0029] (2) Heating the crucible, keeping it at 1500°C for 2 hours, quenching to form a frit, and crush...

Embodiment 2

[0033] A glass-ceramic for making dental restorations, comprising the following raw materials in parts by weight: 50 parts of silicon dioxide, 12 parts of zirconia, 5 parts of phosphorus pentoxide, 6 parts of sodium fluoride, 4 parts of strontium oxide, carbonic acid 16 parts of sodium, 10 parts of zinc oxide, 3 parts of ammonium polyacrylate.

[0034] Wherein, the particle diameter of sodium carbonate is 350nm, the particle diameter of zinc oxide is 800nm, and the relative molecular mass of ammonium polyacrylate is 5000.

[0035] Prepare the above-mentioned preparation method for making the glass-ceramic of dental restoration, comprise the following steps:

[0036] (1) Weigh silicon dioxide, zirconium oxide, phosphorus pentoxide, sodium fluoride, strontium oxide, sodium carbonate, zinc oxide and ammonium polyacrylate in parts by weight, mix and add in the orange pot;

[0037] (2) Heating the crucible, holding it at 1600°C for 1 hour, quenching to form a frit, and crushing in...

Embodiment 3

[0041] A glass-ceramic for making dental restorations, comprising the following raw materials in parts by weight: 70 parts of silicon dioxide, 25 parts of zirconia, 16 parts of phosphorus pentoxide, 12 parts of sodium fluoride, 14 parts of strontium oxide, carbonic acid 28 parts of sodium, 40 parts of zinc oxide, and 10 parts of ammonium polyacrylate.

[0042] Wherein, the particle diameter of sodium carbonate is 300nm, the particle diameter of zinc oxide is 600nm, and the relative molecular mass of ammonium polyacrylate is 3000

[0043] Prepare the above-mentioned preparation method for making the glass-ceramic of dental restoration, comprise the following steps:

[0044] (1) Weigh silicon dioxide, zirconium oxide, phosphorus pentoxide, sodium fluoride, strontium oxide, sodium carbonate, zinc oxide and ammonium polyacrylate in parts by weight, mix and add in the orange pot;

[0045] (2) Heating the crucible, holding it at 1550°C for 1.5h, quenching to form a frit, and crushi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a glass ceramic for preparing dental restorations and a preparation method of the glass ceramic. The ceramic comprises the following raw materials in parts by weight: 50-70 parts of silicon dioxide, 12-25 parts of zirconium oxide, 5-16 parts of phosphorus pentoxide, 6-12 parts of sodium fluoride, 4-14 parts of strontium oxide, 16-28 parts of sodium carbonate, 10-40 parts of zinc oxide and 3-10 parts of ammonium polyacrylate. The preparation method for the glass ceramic comprises the following steps: weighing the raw materials in parts by weight; mixing the raw materials and adding the mixture into a crucible, heating the crucible, carrying out heat preservation for 1-2 h at 1500-1600 DEG C, quenching to form frit, smashing the frit into glass powder, putting the glass powder into the crucible for melting at the temperature of 1050-1100 DEG C and naturally cooling so as to obtain the glass ceramic. The glass ceramic for preparing the dental restorations, provided by the invention, can positively participate in biological reaction to induce tooth tissue in contact with the glass ceramic to grow on the periphery of the glass ceramic for preparing dental restorations so as to form a continuous dental material.

Description

technical field [0001] The invention belongs to the field of bioactive materials, and in particular relates to a glass ceramic used for making dental restorations and a preparation method thereof. Background technique [0002] Dental lesion is a clinical common disease and frequently-occurring disease. Through the development of tooth restoration and tooth replacement materials, it can help patients repair damaged or missing tooth tissue and better restore the function of human tissue. In dental tissue engineering, ideal restoration materials should meet the following conditions: good biocompatibility, biodegradability, plasticity and certain mechanical strength. In the field of tooth defect restoration research, there is an urgent need for materials with mechanical strength matching that of human teeth and good cell compatibility. [0003] Bioactive materials are materials used for diagnosing, treating, repairing or replacing diseased tissues and organs of living organism...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C03C10/00
Inventor 黄能强
Owner GUANGXI NANNING ZHICUI SCI TECH CONSULTATION CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com