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
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the present invention provides a laminated zirconia dental ceramic material and its preparat

Method used

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  • 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

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Example Embodiment

[0035] Example 1

[0036] In early June 2021, in the manufacture of three-zirconium oxide dental ceramics factory Qinhuangdao process according to the physical space is divided into, in the three layers, the lower layer of powder placed in the first model, the middle 10 parts of the powder powder mixed with 90 parts of the lower layer, to give a mixture of A1, the powder 10 is mixed with 90 parts of the lower middle powder to obtain a mixture A2, spray method were added to a mixture of alcohol in the A1 and A2, respectively corresponding alcohol powder mass mass 2% of mixed uniformly, were sieved 30 mesh and 100 mesh sieve, taken between the two sieve powder to obtain a powder A1 and A2 screening screening powder. Weigh A1 screened powder is 2% and the total mass of the model group lower powder, A2 screened powder is 2% of the total mass of the middle powder. The A1 and A2 screening powder in turn lay on top of the lower layer of powder. Standing for some time, until the powder wa...

Example Embodiment

[0037] Example 2

[0038]Mid-June 2021, in the preparation of the zirconium oxide layer sixty-four Qinhuangdao dental ceramic process in an enterprise, according to the physical space is divided into one, two, three, four, five, six between every two according to the physical space 20 parts of the powder was mixed with 80 parts of the upper lower powder to obtain a mixture A1, the powder was mixed with 20 lower parts of the upper layer 80 of powder, to obtain a mixture A2, spray method were added to a mixture of alcohol in the A1 and A2, the amount of alcohol added 3% by mass of a corresponding powder mixed uniformly, were sieved 40 mesh and 120 mesh sieve, taken between the two sieve powder to obtain a powder A1 and A2 screening screening powder. Weigh A1 screened powder mass is 5% of the total mass of the model group lower powder, A2 screened powder is 5% of the total mass of the middle powder. The screening of the powder A1 and A2 are sequentially plated over the first powder l...

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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

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Application Information

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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
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