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Tantalum-silver coating dental implant and preparation method thereof

A technology for dental implants and coatings, applied in the field of tantalum silver coated dental implants and its preparation, can solve the problem of peri-implant mucositis and peri-implantitis that are easy to cause, and polymer materials that are easily degraded by organisms , high brittleness of carbon materials, etc., to achieve the effect of no tissue repellency, no cytotoxicity, and high metal flexibility

Active Publication Date: 2022-03-11
北京华钽生物科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The materials used in dental implants on the market today include ceramic materials, carbon materials, polymer materials and metal materials, but the above materials have various problems in clinical use. Ceramic materials belong to immediate transgingival dental implants. The scope of use is narrow, carbon materials are brittle and their black color also limits their scope of application, polymer materials are easily degraded by organisms and irritate the human body, as for metal materials, most of the metal materials used in dental implants today It is titanium metal and its alloys. This material has high hardness but its elastic modulus is far from that of natural human bone tissue, so it is very restrictive in use.
[0004] Conventional dental implant materials generally have poor biocompatibility, and are prone to cause peri-implant mucositis and peri-implantitis. Some scholars believe that after implant restoration, 79%-90% of patients and 50% % of dental implants are at risk of developing peri-implant mucositis, 28%-56% of patients and 12%-43% of implant sites are at risk of developing dental peri-implantitis

Method used

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  • Tantalum-silver coating dental implant and preparation method thereof
  • Tantalum-silver coating dental implant and preparation method thereof
  • Tantalum-silver coating dental implant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] refer to Figure 1-4 as shown, figure 1 Schematic diagram of the structure of a dental implant, figure 2 The coating electron diffraction figure that provides for the embodiment of the present invention, image 3 Dental implant electron micrograph provided for the embodiment of the present invention, Figure 4 Moiré patterns of the coatings provided for the examples of the present invention. The polycrystalline structure and moiré fringes of the coating can be clearly seen in the figure, image 3 The coating area in the middle and the substrate area at the bottom can also be clearly distinguished in the middle.

[0067] The preparation method of the tantalum-silver coated dental implant provided in this embodiment comprises the following steps:

[0068] Metal powders of titanium, yttrium, niobium, zirconium and silver were mixed according to the ratio of 1.1%, 3%, 70.9%, 14.6% and 10.4% by mass to obtain composite powder, and the composite powder was processed by ...

Embodiment 2

[0088] Concrete operation steps are consistent with embodiment 1, only the metal powder mass percentages of titanium, yttrium, niobium, zirconium and silver are 0.5%, 5%, 60%, 25% and 3%;

[0089] The mass percentages of tantalum, silver, magnesium and strontium are 94%, 5%, 0.2% and 2%;

[0090] The parameters in the process of laser melting technology include: laser power 130w, scanning speed 80mm / s, scanning line spacing 0.03mm, slice layer thickness 15μm, substrate temperature 50℃;

[0091] The porosity of the bionic trabecular bone structure is 15%;

[0092] The aperture size of the bionic trabecular bone structure is 0.1mm;

[0093] The average wire diameter of the bionic trabecular bone structure is 180 μm;

[0094] The pore structure on the bionic bone trabecular structure is a face-centered cube.

Embodiment 3

[0096] Concrete operation steps are consistent with embodiment 1, just the metal powder mass percent of titanium, yttrium, niobium, zirconium and silver is 5%, 1%, 80%, 5% and 17%;

[0097] The mass percentages of tantalum, silver, magnesium and strontium are 98%, 0.5%, 2% and 0.2%;

[0098] The parameters in the process of laser melting technology include: laser power 350w, scanning speed 400mm / s, scanning line spacing 0.15mm, slice layer thickness 60μm, substrate temperature 250℃;

[0099] The porosity of the bionic trabecular bone structure is 85%;

[0100] The aperture size of the bionic trabecular bone structure is 1 mm;

[0101] The average wire diameter of the bionic trabecular bone structure is 780 μm;

[0102] The pore structure on the bionic bone trabecular structure is a rotating face-centered cube.

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Abstract

The invention discloses a tantalum-silver coating dental implant and a preparation method thereof, the dental implant comprises a base material and a tantalum-silver coating, the base material comprises the following raw materials by mass percentage: 0.5%-5% of titanium, 1%-5% of yttrium, 60%-80% of niobium, 5%-25% of zirconium and 3%-17% of silver; the tantalum-silver coating is prepared from, by mass, 94%-98% of tantalum, 0.5%-5% of silver, 0.2%-2% of magnesium and 0.2%-2% of strontium. The dental implant has the physical properties of high strength and low elastic modulus, and can effectively sterilize, resist corrosion and promote bone growth.

Description

technical field [0001] The invention belongs to the technical field of dental implants, in particular to a tantalum-silver coated dental implant and a preparation method thereof. Background technique [0002] Artificial dental implant, also known as implant denture, is a bionic tooth made of biological materials. It is divided into two parts: the dental implant (that is, the root part) that is implanted in the human jawbone to support and fix it, and the crown that undertakes the chewing function. part. According to the changes of the alveolar bone and jawbone after the patient loses teeth, the doctor selects a certain shape of dental implants and implants them in the jawbone as an artificial tooth root, and then installs a crown on the implant post exposed in the oral cavity to obtain a dental crown similar to a natural tooth. shape and function. [0003] The materials used in dental implants on the market today include ceramic materials, carbon materials, polymer materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/02C23C14/16B22F10/28C23C14/34B22F10/60B22F1/00A61C13/08B33Y10/00B33Y40/20B33Y80/00B33Y70/00
CPCC22C27/02C23C14/165B22F10/28B22F10/60C23C14/34A61C13/08B33Y10/00B33Y40/20B33Y80/00B33Y70/00Y02P10/25
Inventor 姜培齐王路路陈锡剑宋国安石培国
Owner 北京华钽生物科技开发有限公司
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