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

Complete set of titanium ceramic powder for dental department and preparation method thereof

A technology of porcelain powder and porcelain powder, which is applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems of porcelain layer fracture and poor bonding strength, and achieve the effect of reducing the temperature of porcelain and improving the bonding strength

Inactive Publication Date: 2010-03-10
XI AN JIAOTONG UNIV
View PDF1 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The thermal expansion coefficient of pure titanium is 8~10×10 -6 ℃, much lower than gold alloy (14-15×10 -6 ℃) and nickel-chromium alloy (14~15×10 -6 ℃), so the expansion coefficient of ceramic powder used for gold alloy and nickel-chromium alloy does not match that of pure titanium, not only the bonding strength is poor, but also the ceramic layer will be fractured due to tensile stress

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Complete set of titanium ceramic powder for dental department and preparation method thereof
  • Complete set of titanium ceramic powder for dental department and preparation method thereof
  • Complete set of titanium ceramic powder for dental department and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] A set of titanium porcelain powders for dentistry, including bonded porcelain powders, opaque porcelain powders and body porcelain powders. Among them: the composition of the bonding porcelain powder is shown in Table 1. A total of 8 trials with specific formulations were carried out.

[0026] When calculating the actual formula, SiO 2 、Al 2 o 3 , CaO, SnO 2 , ZrO 2 Introduced directly with oxides, B 2 o 3 Introduced with boric acid, Na 2 O, K 2 O. Li 2 O and BaO are introduced with the corresponding carbonates, and F is introduced with the corresponding fluorides. The other elements introduced in the fluorides are considered in the calculation and the corresponding elements are deducted. According to the composition, calculate the corresponding addition amount of various raw materials.

[0027] Table 1

[0028]

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
sintering temperatureaaaaaaaaaa
bending strengthaaaaaaaaaa
Vickers hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a complete set of a titanium ceramic powder for a dental department and a preparation method thereof. The titanium ceramic powder comprises bonded ceramic powder, color-maskingceramic powder and body ceramic powder. The bonded ceramic powder comprises the following components in percentage by weight: 50-55 percent of SiO2, 5-10 percent of Al2O3, 8-15 percent of B2O3, 10-15percent of SnO2, 0-1 percent of CaO, 1-3 percent of ZrO2, 4-10 percent of Na2O, 5-8 percent of K2O, 0-1 percent of Li2O, 1-4 percent of BaO and 0-1 percent of F; the color-masking ceramic powder comprises 50-60 percent of SiO2, 3-10 percent of Al2O3, 0.5-1 percent of CaO, 20-30 percent of SnO2, 0-1 percent of TiO2, 0.5-1 percent of ZrO2, 7-10 percent of Na2O, 5-8 percent of K2O and 0.5-4 percentof BaO; and the body ceramic powder comprises 60-70 percent of SiO2, 4-10 percent of Al2O3, 0.5-1 percent of CaO, 1-5 percent of B2O3, 5-10 percent of Na2O, 5-10 percent of K2O, 0.5-1 percent of Li2Oand 5-8 percent of BaO. In the titanium ceramic powder, besides the body ceramic powder, a crystal phase is added in the bonded ceramic powder and the color-masking ceramic powder by an intermediate material technology for secondary synthesis process, thereby not only regulating the thermal expansion coefficient of ceramic materials, but also being beneficial to reducing the ceramic temperature and being simultaneously beneficial to improving the bonding strength of titanium and ceramic.

Description

technical field [0001] The invention relates to a biological material and a preparation method, in particular to a set of titanium ceramic powder used in dentistry and a preparation method thereof. Background technique [0002] Since the clinical application of dental porcelain materials, due to its good biocompatibility, wear resistance and corrosion resistance, natural and lifelike color and other advantages, it has become the main method of dental medicine to restore missing teeth. Porcelain material is a composite of metal and ceramic materials made by high-temperature firing. It not only has the characteristics of metal material strength, toughness, edge tightness, etc., but also has ceramic color lifelike, corrosion resistance, wear resistance, easy self-cleaning, etc. Advantages, it has been widely used in the field of oral restoration. [0003] Porcelain-fused-metal (Porcelain-fused-metal, PFM) crown, also known as metal-ceramic crown, is a gold-ceramic composite st...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/027A61K6/02C04B35/626
Inventor 杨建锋郭立童郭天文吴海涛王晓洁张惠刘啸晨高积强
Owner XI AN JIAOTONG UNIV
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