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Whisker-reinforced zirconia implant integrated crown

A zirconia and implant technology, which is applied in the field of whisker-reinforced zirconia implant-integrated crown, can solve the problems of poor aesthetic performance, poor mechanical properties of all-ceramic abutment-integrated crown, affecting the biological activity of restorations, etc., so as to improve the strength and the effect of toughness

Active Publication Date: 2022-04-22
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 zirconia implant integrated crown
  • Whisker-reinforced zirconia implant integrated crown
  • Whisker-reinforced zirconia implant 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 zirconia planting integrated crown, which comprises 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 The zirconium matrix is ​​composed of the upper crown of the implant, the transgingival part and the connecting part for connecting the implant from top to bottom; the material of the whisker-reinforced zirconia matrix is ​​whisker-reinforced zirconia, and the whisker-reinforced zirconia The raw materials of strong zirconia include main materials and additives, the main materials are composed of 80-99% zirconia and whiskers 1-20% by mass percentage, and the additives include: superfine Nano-alumina powder 0.1-1%, ultra-fine nano-silica powder 0-0.1%. The invention can not only meet the requirements of aesthetic performance, but also meet the requirements of mechanical strength similar to the one-piece crown made of titanium metal, meanwhile, the surface roughness can be controlled, and it has good biological activity and biocompatibility.

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 Patents(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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