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Whisker reinforced zirconium oxide planting integrated crown

A technology of zirconia and implants, which is applied in the field of whisker-reinforced zirconia implant integrated crowns, which can solve the problems of poor mechanical properties and aesthetic properties of all-ceramic abutment integrated crowns, and affect the biological activity of restorations, so as to reduce bacteria and plaque aggregation, improving strength and toughness, good biological activity and biocompatibility

Active Publication Date: 2021-04-16
HANGZHOU ERRAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the poor aesthetic performance of titanium abutment integrated crowns, the poor mechanical properties of all-ceramic abutment integrated crowns, and the impact on the biological activity of restorations due to the surface roughness of zirconia, our invention has developed a method that can not only meet the aesthetic performance requirements, but also can A biomimetic whisker-reinforced zirconia implant integrated crown that meets the mechanical strength requirements of a titanium abutment, has controllable surface roughness, and has good bioactivity and biocompatibility

Method used

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  • Whisker reinforced zirconium oxide planting integrated crown
  • Whisker reinforced zirconium oxide planting integrated crown
  • Whisker reinforced zirconium oxide planting integrated crown

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A whisker-reinforced zirconia implant-integrated crown, comprising a whisker-reinforced zirconia matrix, the center of the whisker-reinforced zirconia matrix is ​​provided with a longitudinally through screw hole, and the whisker-reinforced zirconia matrix consists of Consists of the upper crown of the implant, the transgingival part and the connecting part for connecting the implant ( figure 1 ); the material of the whisker-reinforced zirconia matrix is ​​whisker-reinforced zirconia, the raw material of the whisker-reinforced zirconia includes main materials and additives, and the main material is composed of 80% zirconia by mass percentage 20% of the whiskers, and the additives include: 1% ultrafine nano-alumina powder and 0.1% ultra-fine nano-silicon oxide powder by weight percentage of the whiskers.

[0055] The outer surface of the transgingival part is provided with an active layer, and the thickness of the active layer is 0.2-1 micron ( figure 2 ).

[0056] Th...

Embodiment 2

[0060] The difference between this embodiment and Embodiment 1 is that the inner surface of the screw hole is provided with a color-shielding layer, and the thickness of the color-shielding layer is 20-200 μm ( figure 2 ). The shade layer is soaked in the whisker-reinforced zirconia implant crown in the shade slurry, the temperature is controlled at 30-100°C, the time is 1-120min, rinsed with deionized water, and dried at 1-50°C The heating rate of / s is raised to 700-1300°C and sintered for 0.5-2 hours; the color-shielding paste is: ZrSiO 4 Slurry, Al 2 o 3 Slurry, ZrO 2 Slurry, TiO 2 One or a mixture of slurry and AlN slurry; or a slurry mixed with the following components by weight percentage: 20-65% organic binder, 30-60% enamel powder, 5- 20%Al 2 o 3 powder; or containing alkali metal ions and Zr 4+ 、Al 3+ , Y 3+ One of the ion solutions, the ion concentration is 1-10mol / L.

[0061] Others are the same as in Example 1.

Embodiment 3

[0063] A whisker-reinforced zirconia implant-integrated crown, comprising a whisker-reinforced zirconia matrix, the center of the whisker-reinforced zirconia matrix is ​​provided with a longitudinally through screw hole, and the whisker-reinforced zirconia matrix consists of Consists of the upper crown of the implant, the transgingival part and the connecting part for connecting the implant ( figure 1 ); the material of the whisker-reinforced zirconia matrix is ​​whisker-reinforced zirconia, the raw material of the whisker-reinforced zirconia includes main materials and additives, and the main material is composed of zirconia 99% by mass percentage Composed of 1% of whiskers, the additives include: 0.1% of ultrafine nano-alumina powder by weight percentage of whiskers.

[0064] The outer surface of the transgingival part is provided with an active layer, and the thickness of the active layer is 0.2-1 micron ( figure 2 ).

[0065] The whiskers are silicon carbide whiskers wi...

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Abstract

The invention discloses a whisker reinforced zirconium oxide planting integrated crown, which comprises a whisker reinforced zirconium oxide substrate, a longitudinally-through screw hole is formed in the center of the whisker reinforced zirconium oxide substrate, and the whisker reinforced zirconium oxide substrate is composed of an implant upper crown, a gum penetrating part and a connecting part used for being connected with an implant from top to bottom; the whisker reinforced zirconium oxide matrix is made of whisker reinforced zirconium oxide, the whisker reinforced zirconium oxide comprises the following raw materials in percentage by mass: 80-99% of zirconium oxide and 1-20% of whisker; the additive comprises the following components in percentage by weight: 0.1-1% of superfine nano aluminum oxide powder and 0-0.1% of superfine nano silicon oxide powder. According to the invention, the aesthetic property requirement can be met, the mechanical strength requirement similar to that of a titanium metal integrated crown can be met, the surface roughness is controllable, and good biological activity and biocompatibility are achieved.

Description

technical field [0001] The invention relates to the technical field of dental prosthesis production, in particular to a whisker-reinforced zirconia implant integrated crown. Background technique [0002] Since Professor Branemark, a Swedish scientist, proposed the theory of implant osseointegration in 1965, oral implant restoration technology has developed rapidly and has become the preferred method for tooth restoration in the 21st century. Implant dentures are also known as "the third human tooth". [0003] With the popularity of implant dentures, there are more and more types of restorations for the superstructure of implants, and integrated implant crowns are also produced. Different from the traditional implant superstructure, the integrated implant crown integrates the abutment and the crown, and is retained by screws through the occlusal surface opening. This structure not only simplifies the secondary screw fixing method of conventional screw retention, but also avoi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/02A61L27/30A61L27/50A61L27/54C04B35/80C04B35/48C04B35/63
Inventor 李廷凯焦芬芬赵武元沈志坚杨进
Owner HANGZHOU ERRAN TECH
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