Tooth implant

A technology for implants and body parts, applied in dentistry, prostheses, dental implants, etc., can solve the problems of slow fusion between dental implants and surrounding bone tissue, unfavorable bone tissue regeneration, unfavorable cell growth, etc., to achieve shortened fusion time, The effect of overcoming the instability of the interface and sufficient transmission

Active Publication Date: 2017-10-24
CHONGQING RUNZE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of dental implant is that the porous material used in the dental implant is a single-space material, and the cavity wall of the hole is still a dense material. It may be lower, but due to the large elastic modulus of the dense material of the cavity wall, it is difficult for the cells on the cavity wall of the porous material to feel the stimulation of the force, and stress shielding occurs, which is not conducive to cell growth. Dental implants and The fusion of the surrounding bone tissue is slow, which is not conducive to the regeneration of bone tissue. The interface between the dental implant and the adjacent bone tissue is not firm and will loosen

Method used

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Examples

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Embodiment 1

[0028] The artificial tooth implant of this embodiment is made of pure titanium, and the body is made of porous titanium material with a secondary pore structure. The cavities are all connected to each other, and the cavities at all levels are also connected to each other. Its preparation method is:

[0029] (1) Preparation of porous titanium body

[0030] a. Material preparation

[0031]Titanium powder with a particle size of 100nm-150nm is used as raw material, methylcellulose with a particle size of 370nm-500nm is used as the smallest pore-forming agent, and polystyrene with a particle size of 370nm-500nm is used as a binder. Niobium powder: methyl cellulose: polystyrene: distilled water in a volume ratio of 1:2:1:8 to make a slurry.

[0032] Use polyester foam with a rib diameter of 160µm-300µm, fill the slurry uniformly with foam impregnation method, form a green body and dry, and then crush to obtain raw materials, pore-forming agents and polyester foam with particle...

Embodiment 2

[0040] The artificial tooth implant in this example is similar to Example 1, except that the body is made of porous niobium, and the abutment and neck are made of dense niobium. The pore diameter of the stage cavity is 280nm-420nm, each stage of the cavity is connected to each other and the holes of each stage are also connected to each other. Its preparation method is similar to Example 1.

[0041] The first-stage porosity of this kind of porous niobium is 46%, the elastic modulus is 43GPa, the second-stage porosity is 42%, and the elastic modulus is 49.5GPa. The overall porosity of the body is 77%.

Embodiment 3

[0043] The artificial tooth implant of this embodiment is similar to Embodiment 2, the difference is that the abutment is porous niobium, and the neck is porous niobium, the holes of the porous niobium of the abutment and the porous niobium of the neck are interconnected, and the porous niobium of the abutment is The pores of niobium and the porous niobium in the neck are interpenetrating, and the pores of the porous niobium in the neck and the hierarchically porous niobium in the body are interpenetrating. The abutment and the neck are respectively prepared by pore-forming agent method. 40%, the pore size is 340nm-460nm, and the pore size of the neck is 10µm-16µm.

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Abstract

The invention provides an artificial tooth implant. The artificial tooth implant is composed of a body part, a neck part and an abutment, wherein the body part is a porous metal material; the porous metal material is a multi-grade-pore metal material; the multi-grade-pore metal material is composed of all grades of pore cavities which are graded according to the pore diameter size of the material and all grades of cavity walls for forming the pore cavities through surrounding; all grades of the pore cavities are mutually communicated respectively and all grades of the pore cavities are also mutually communicated respectively; the number of grades is two at least. Compared with the fusion time of a traditional artificial tooth implant with a body part which is a porous metal material with single pores, the fusion time between the artificial tooth implant and an adjacent bone tissue is remarkably shortened; the artificial tooth implant is firmly fixed on a gum so that the problems that an interface is not stable and loose are overcome.

Description

technical field [0001] The invention relates to the field of dental implants, in particular to an artificial dental implant. Background technique [0002] In recent years, with the development of dental implant technology, dental implants have become one of the main restoration methods for missing and defective dentition. Dental implants are usually anchored on one or more edentulous parts in the patient's dentition. Generally, dental implants are screwed or press-fit into holes in patients whose original teeth have been lost or damaged, and the holes are drilled in the mandible or maxilla of the patient's edentulous site. Compared with other traditional restoration methods such as complete dentures, partial removable dentures, and fixed dentures, dental implants have obvious advantages: first, they have strong functions and can restore tooth functions well, and their chewing function is much better than other traditional dentures; If you don’t grind your teeth, you can rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C8/00A61L27/04A61L27/06A61L27/50A61L27/56
CPCA61C8/0012A61C8/0037A61L27/045A61L27/047A61L27/06A61L27/50A61L27/56A61L2430/12
Inventor 叶雷
Owner CHONGQING RUNZE PHARM CO LTD
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