Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Laminated zirconia dental ceramic material and preparation method thereof

A technology of dental ceramics and laminated materials, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of easy cracking of the interface of laminated zirconia dental ceramics, and achieve the effect of improving product quality and increasing economic benefits

Active Publication Date: 2021-10-01
PEKING UNIV SCHOOL OF STOMATOLOGY
View PDF12 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a laminated zirconia dental ceramic material and its preparation method, which mainly solves the problem that the interface of laminated zirconia dental ceramics is easy to crack

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
  • Laminated zirconia dental ceramic material and preparation method thereof
  • Laminated zirconia dental ceramic material and preparation method thereof
  • Laminated zirconia dental ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In early June 2021, during the preparation process of three-layer zirconia dental ceramics in a factory in Qinhuangdao, according to the physical space, it was divided into lower, middle and upper layers. Mix with 90 parts of the lower layer powder to obtain mixture A1, mix 10 parts of the lower layer powder with 90 parts of the middle layer powder to obtain mixture A2, add alcohol to the mixture of A1 and A2 respectively by spraying method, the alcohol mass is the corresponding powder mass After mixing evenly, sieve through 30-mesh and 100-mesh sieves respectively, and take the powder between the two sieves to obtain A1 screened powder and A2 screened powder. Weigh the mass of A1 screening powder as 2% of the total mass of the lower powder in the model group, and A2 screening powder as 2% of the total mass of the middle powder. Spread A1 and A2 screened powders on the lower layer of powders in turn. Let it stand for a while, and after the powder is dry, put the middle...

Embodiment 2

[0038]In mid-June 2021, during the preparation process of six or four layers of zirconia dental ceramics in an enterprise in Qinhuangdao, according to the physical space, it was divided into one, two, three, four, five, and six layers. Between each two layers, according to the physical space, the Mix 20 parts of the upper layer powder with 80 parts of the lower layer powder to obtain mixture A1, mix 20 parts of the lower layer powder with 80 parts of the upper layer powder to obtain mixture A2, add alcohol to the mixture of A1 and A2 respectively by spraying method, the amount of alcohol added 3% of the mass of the corresponding powder. After mixing evenly, sieve through 40-mesh and 120-mesh sieves respectively, and take the powder between the two sieves to obtain A1 screened powder and A2 screened powder. Weigh the mass of A1 screening powder as 5% of the total mass of the lower powder in the model group, and A2 screening powder as 5% of the total mass of the middle powder. S...

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of dental ceramic materials, and discloses a laminated zirconia dental ceramic material and a preparation method thereof. The preparation method mainly comprises the steps that before powder is formed, interfaces of different layers of powder are treated, first mixture screening powder and second mixture screening powder are prepared through granulation and sieving, the first mixture screening powder is paved on the lower-layer powder, the second mixture screening powder is paved on the first mixture screening powder, and then the upper-layer powder is stacked. The problem that the interface of the laminated zirconia dental ceramic is easy to crack is solved. The obtained product not only can be used for forming a disc-shaped blank, but also can be used for forming a blank of a personalized shape restoration on a preparation body.

Description

technical field [0001] The invention relates to the technical field of dental ceramic materials, in particular to a laminated dental ceramic material and a preparation method thereof. Background technique [0002] All-ceramic restoration technology has been widely used clinically as a treatment method in the field of prosthodontics such as fixed restoration of tooth defects and cosmetic restoration of anterior teeth, and is more and more welcomed by doctors and patients. As an all-ceramic restoration material, zirconia ceramics are rapidly gaining popularity around the world due to their excellent physical and chemical properties, stable biocompatibility and good aesthetic restoration effects. However, in addition to meeting the shape and size requirements, a perfect restoration also needs to have a color and mechanical properties that are close to those of natural teeth. Uncolored zirconia ceramics are mostly white or ivory white, which is difficult to meet the clinical re...

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): C04B35/48C04B35/622C04B35/626C04B35/632A61K6/818A61K6/15
CPCC04B35/48C04B35/622C04B35/62605C04B35/62695C04B35/632A61K6/818A61K6/15B32B18/00C04B2237/348C04B2237/58C04B2235/5427C04B2235/604C04B2235/661C04B35/6264B28B13/022B28B3/02
Inventor 孙玉春李洪文陈虎周永胜王勇李伟伟翟文茹
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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