ZrO2-based all-ceramic dental implant and preparation method thereof

A technology of dental implants and ceramics, which is applied in the fields of medical science, prosthesis, tissue regeneration, etc., and can solve the problems of complex installation of metal-based dental implants, waste, high perforation, etc.

Active Publication Date: 2017-12-22
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Dental implant restoration technology is currently one of the effective restoration methods for the treatment of tooth loss, but the metal-based dental implants currently widely used have the following problems: On the one hand, there are obvious differences in the patient's alveolar bone structure, bone mass, tooth occlusion, and missing position. However, metal-based implants, abutments and accessories are spare parts with standardized structures, which are difficult to meet the growing requirements of individualized implants. In addition, the installation of metal-based dental implants is complicated and the operation time is long (generally 6 hours). ~15 months), there are high surgical risks such as perforation, infection, and bleeding; on the other hand, metal-based dental implants rely on the fixation of the alveolar bone, but due to the huge difference in components between the two, it is difficult to truly form an interface Osseointegration, and it is easy to cause problems such as dark gums, wear of surroun

Method used

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  • ZrO2-based all-ceramic dental implant and preparation method thereof
  • ZrO2-based all-ceramic dental implant and preparation method thereof

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preparation example Construction

[0031] The invention provides a ZrO 2 A method for preparing a base all-ceramic implant, comprising the following steps:

[0032] Soluble zirconium salt, strong alkali and solution containing doping elements are prepared by nano-powder preparation technology to obtain nano-ZrO with stable doping elements 2 Powder;

[0033] The nano ZrO 2 The powder is mixed with the photosensitive resin to obtain a ceramic-photosensitive resin prefabricated slurry;

[0034] The ceramic-photosensitive resin prefabricated slurry is printed by additive manufacturing technology according to the simulated tooth model to obtain ZrO 2 ceramic green body;

[0035] The ZrO 2 Ceramic green body debinding and sintering to obtain ZrO 2 Ceramic substrate;

[0036] The ZrO 2 The ceramic matrix is ​​subjected to ion infiltration, sintering and mineralization treatment to obtain ZrO 2 All-ceramic dental implants.

[0037] The present invention makes the prepared ZrO by adopting additive manufacturin...

Embodiment 1

[0072] (1) Combine the medical detection information of CT, X-ray and oral scan to obtain the overall structural information of a single natural tooth-molar, use Mimics and Geomagic software to build a highly simulated molar tooth model, and design the three-dimensional connected gradient of the root surface Porous structure, the layer thickness is 200μm, and the hole shape is round;

[0073](2) Mix zirconium nitrate and sodium hydroxide evenly, slowly add a solution containing Y and Ca doping elements, use the spontaneous heating reaction of sodium hydroxide dissolution, and Zr 4+ , Y 3+ and Ca 2+ Ionic chemical co-precipitation, after separation, drying and heat treatment, obtained Y and Ca elements co-stabilized nano-ZrO 2 Powder.

[0074] (3) the nanometer ZrO that step 2 obtains 2 The powder is mixed with photosensitive resin by ball milling to prepare ceramic-photosensitive resin prefabricated slurry with high solid phase content, in which ZrO 2 The ratio of powder ...

Embodiment 2

[0079] (1) Combine the medical detection information of CT, X-ray and oral scan to obtain the overall structure information of a single natural tooth-incisor, use Mimics and Geomagic software to build a highly simulated incisor tooth model, and design the three-dimensional connected gradient of the root surface Porous structure, the layer thickness is 200μm, and the hole shape is round;

[0080] (2) Mix zirconium nitrate and sodium hydroxide evenly, slowly add a solution containing Y, Ca and Al doping elements, use the spontaneous heating reaction of sodium hydroxide dissolution, and Zr 4+ , Y 3+ , Ca 2+ and Al 3+ Ionic chemical co-precipitation, after separation, drying and heat treatment, get Y, Ca and Al elements co-stabilized nano-ZrO 2 Powder.

[0081] (3) the nanometer ZrO that step 2 obtains 2 The powder is mixed with photosensitive resin by ball milling to prepare ceramic-photosensitive resin prefabricated slurry with high solid phase content, in which ZrO 2 The ...

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Abstract

The invention provides a ZrO2-based all-ceramic dental implant and a preparation method thereof. The method comprises steps as follows: ZrO2 nano powder with stable doping elements is obtained from soluble zirconium salt, strong base and a solution containing doping elements with a nano powder preparation technology; the ZrO2 nano powder is mixed with photosensitive resin, and ceramic-photosensitive resin prefabricated slurry is obtained; the ceramic-photosensitive resin prefabricated slurry is printed with an additive manufacturing technology according to a true tooth simulation model, a ZrO2 ceramic biscuit is obtained and subjected to gel removal and sintering, and a ZrO2 ceramic matrix is obtained; finally, ion penetration, sintering and mineralization are performed, and the ZrO2-based all-ceramic dental implant is obtained. The dental implant is controllable in structure and highly simulated with the additive manufacturing technology; in combination with ion penetration, sintering and mineralization treatment, synostosis of the dental implant and alveolar bone is advantageously improved; chemical ingredients of the dental implant are in gradient distribution on the whole, and the ZrO2-based all-ceramic dental implant has moderate strength, hardness, toughness and bioactivity.

Description

technical field [0001] The invention relates to the technical field of dental implants, in particular to a ZrO 2 Dental implant based on all-ceramic and preparation method thereof. Background technique [0002] Dental implant restoration technology is currently one of the effective restoration methods for the treatment of tooth loss, but the metal-based dental implants currently widely used have the following problems: On the one hand, there are obvious differences in the patient's alveolar bone structure, bone mass, tooth occlusion, and missing position. However, metal-based implants, abutments and accessories are spare parts with standardized structures, which are difficult to meet the growing requirements of individualized implants. In addition, the installation of metal-based dental implants is complicated and the operation time is long (generally 6 hours). ~15 months), there are high surgical risks such as perforation, infection, and bleeding; on the other hand, metal-...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622C04B35/626C04B35/634C04B41/89A61L27/10A61L27/50
CPCA61L27/10A61L27/50A61L2430/12C04B35/48C04B35/622C04B35/6264C04B35/62645C04B35/634C04B41/52C04B41/89C04B2235/3208C04B2235/3217C04B2235/3225C04B2235/96C04B2235/963C04B41/5048C04B41/5042
Inventor 黄淼俊邓欣李练伍尚华陈健
Owner GUANGDONG UNIV OF TECH
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