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A dental implant with periodontal ligament-like structure design

A dental implant and membrane structure technology, applied in dentistry, dental implants, medical science, etc., can solve the problems of large investment and long time, and achieve the effects of reducing production costs, dispersing occlusal load, and reducing exploration

Active Publication Date: 2019-09-13
苏州瑞迈德医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bioengineering reconstruction of periodontal ligament is still in its infancy, and long-term and large-investment research is needed to achieve further results

Method used

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  • A dental implant with periodontal ligament-like structure design
  • A dental implant with periodontal ligament-like structure design
  • A dental implant with periodontal ligament-like structure design

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The implant shell 1 is made of titanium metal, and the surface is treated with sand blasting, acid etching, and surface calcium phosphating to improve the bonding ability of the implant material and bone. The inner surface of the implant shell 1 can be roughened by sandblasting, and the roughness Ra is 3um, which can suspend and lift the elastic buffer layer material.

[0028] The implant inner core 2 is installed in the implant shell 1 , and its shape is consistent with the hollow cylinder of the implant shell 1 . The surface of the inner core of the implant is subjected to laser surface patterning to form rough grooves with a width of 6 μm and a depth of 6 μm, further increasing the suspension and pulling effect on the elastic buffer layer.

[0029] The material selected for the elastic buffer layer 4 and the locking and sealing member 3 is silicone rubber with an elastic modulus of 40Mpa and a Poisson's ratio of 0.45.

Embodiment 2

[0031] The implant casing 1 is made of Ti6Al4V metal, and the surface is sandblasted, acid-etched, and surface calcium phosphated to improve the bonding ability of the implant material and bone. The inner surface of the implant shell can be roughened by sandblasting, and the roughness Ra is 7um, which can suspend and lift the material of the elastic buffer layer 4 .

[0032] The implant inner core 2 is installed in the implant shell 1 , and its shape is consistent with the hollow cylinder of the implant shell 1 . The surface of the inner core 2 of the implant is subjected to laser surface patterning treatment to form stripes perpendicular to the cross section with a width of 10 μm and a depth of 4 μm, further increasing the suspension and pulling effect on the elastic buffer layer.

[0033] The material selected for the elastic buffer layer 4 and the locking and sealing member 3 is silicone rubber with an elastic modulus of 65Mpa and a Poisson's ratio of 0.49.

Embodiment 3

[0035] The implant casing 1 is made of TiZrNbSn metal, and the surface is treated with sandblasting, acid etching, and surface calcium phosphating to improve the bonding ability of the implant material and bone. The inner surface of the implant shell 1 can be roughened by sandblasting, and the roughness Ra is 5um, which can suspend and lift the elastic buffer layer material.

[0036] The implant inner core 2 is installed in the implant shell 1, and its shape is consistent with the hollow cylinder of the implant shell. The surface of the inner core 2 of the implant is subjected to laser surface patterning treatment to form a rough surface with a roughness of Ra 5um, which further increases the suspension and lifting effect on the elastic buffer layer.

[0037] The material selected for the elastic buffer layer 4 and the locking and sealing member 3 is silicone rubber with an elastic modulus of 35Mpa and a Poisson's ratio of 0.35.

[0038] When implanting a tooth, first, the pl...

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Abstract

The invention discloses a dental implant with a parodontium-like structure. The dental implant comprises the following four main parts: an implant shell, an implant core, an elastic buffer layer and a sealing member. Roughening and patterning of the inner surface of the implant shell and the outer surface of the implant core exert suspension and pulling effect on an elastic buffer layer material; and the elastic buffer layer material can alleviate and scatter dental occlusal force. Through a suspension and buffering bionic design, parodontium-like effect is exerted, so impact during occlusion of teeth is alleviated, occlusion load is scattered, absorption of alveolar bones is avoided, and the stability of the dental implant is improved. Meanwhile, the novel dental implant can be prepared through reconstruction of a conventional dental implant, so production cost is lowered, and safety in practice is enhanced.

Description

technical field [0001] The invention belongs to the field of dental implant restoration, in particular to an artificial dental implant with a periodontal ligament-like design. Background technique [0002] In the field of clinical oral implantology, the absorption of bone tissue around the implant is an important factor affecting the service life of implant dentures. This is because the implant will inevitably receive impact from the occlusal cavity and transmit it to the alveolar bone. When the alveolar bone is under stress, it will promote the differentiation of osteoclasts, resulting in bone adsorption of the alveolar bone. The loss of bone directly affects the mechanical connection of the alveolar bone, thereby affecting the stability of the implant, resulting in loosening and failure of the implant. [0003] At present, the surface treatment of implants is mostly focused on increasing the bonding ability between implants and alveolar bone and improving the stability o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00
Inventor 魏强彭诚许伟泽
Owner 苏州瑞迈德医疗科技有限公司
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