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Tooth repair material as well as preparation method and application thereof

A tooth restoration material and reinforced technology, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems that cannot meet the mechanical requirements of dental crowns and bridges, and the clinical application of lithium disilicate glass ceramics is not widely used.

Pending Publication Date: 2015-05-13
AI JIA DENTAL LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the clinical application of lithium disilicate glass ceramics commonly used in the market is still not extensive.
This is due to its inability to meet the mechanical requirements of a crown and pontic in the posterior position

Method used

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  • Tooth repair material as well as preparation method and application thereof

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Effect test

preparation example Construction

[0021] see figure 1 , the preparation method of the dental restoration material of one embodiment, comprising:

[0022] S110, press ZrO 2 10%-14%, SiO 2 54%-67%, Li 2 O 12%-25%, coloring agent 0%-10%, stabilizer 0%-15% by mass percentage to take corresponding raw materials;

[0023] S120. After mixing the raw materials, grind them uniformly to obtain a mixture.

[0024] Through preliminary grinding, the raw materials of each component are pre-mixed, which is beneficial to the quality of the finished product.

[0025] S130. Melting the mixture at a temperature of 1400-1600° C., so that the components of the mixture are evenly distributed and the air bubbles are completely overflowed, and then annealed; then nucleation and crystallization are performed to obtain zirconia-reinforced silicon lithium oxide glass ceramics.

[0026] In one embodiment, the nucleation and crystallization treatment is as follows: first nucleation at 650-800° C. for 1-9 hours, and then heating up ...

Embodiment 1

[0030] The chemical composition and mass percentage of the tooth restoration material are: ZrO 2 10%, SiO 2 55%, Li 2 O 12%, Eu 2 o 3 10%, SrO13%. Mix the above components and grind them evenly to obtain a mixture

[0031] Melt the mixture at a temperature of 1400°C, so that the components of the mixture are evenly distributed and the air bubbles overflow completely before annealing; first nucleate at 650°C for 9 hours, then raise the temperature to 600°C for crystallization treatment for 20 hours , to obtain zirconia reinforced lithium silicate glass ceramics.

Embodiment 2

[0033] The chemical composition and mass percentage of the tooth restoration material are: ZrO 2 14%, SiO 2 60%, Li 2 O 20%, MnO 2 5%, Y 2 o 3 1%. After mixing the above components, grind them evenly to obtain a mixture;

[0034] Melt the mixture at a temperature of 1500°C so that the components of the mixture are evenly distributed and the air bubbles overflow completely before annealing; first nucleate at 750°C for 5 hours, then raise the temperature to 1000°C for crystallization for 15 hours , to obtain zirconia reinforced lithium silicate glass ceramics.

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Abstract

The invention relates to a tooth repair material. The tooth repair material is zirconia enhanced lithium silicate glass ceramic; the zirconia enhanced lithium silicate glass ceramic comprises the following chemical components in percentages by mass: 10%-14% of ZrO2, 54%-67% of SiO2, 12%-25% of Li2O, 0%-10% of a coloring agent and 0%-15% of a stabilizer. The invention further provides the tooth repair material and application thereof. According to the tooth repair material as well as a preparation method and the application thereof, the lithium silicate glass ceramic is taken as a glass matrix, and by adding an appropriate amount of zirconia, the tooth repair material with good mechanical property and reliability can be obtained through high-temperature firing.

Description

technical field [0001] The invention relates to the technical field of dental all-ceramic materials, in particular to a tooth restoration material and its preparation method and application. Background technique [0002] At present, the aesthetic effect of dental restoration materials has attracted more and more attention. With its suitable hardness, strong toughness, reliable durability, unique optical properties and good biocompatibility, glass-ceramic materials have fully demonstrated their bright prospects for application in dental restoration materials. Glass ceramics are composite materials composed of crystalline and glass phases prepared by controlling the nucleation and crystallization of the matrix glass. The special optical properties of glass ceramics can simulate the luster of natural teeth to the greatest extent, and it is one of the ideal materials for dental restorations. However, the clinical application of lithium disilicate glass ceramics commonly used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00A61K6/02A61K6/027
CPCA61K6/833C03C4/0021C03C10/00
Inventor 刘嘉
Owner AI JIA DENTAL LAB
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