3D (three-dimensional) printing bionic dental implant and manufacturing method thereof

A 3D printing and implant technology, applied in dental implants, dentistry, prostheses, etc., can solve the problems of immediate implantation, difficult to close wounds, poor initial stability of implantation, long healing time, etc., and achieve good biocompatibility and biodegradation. The effect of reducing the occurrence of peri-implantitis and inhibiting the ability of periodontal pathogens

Inactive Publication Date: 2017-10-20
THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the full-dense implant has many defects: poor mechanical compatibility, its elastic modulus (110Gpa) is too different from that of bone (2-18Gpa), and the interface between the implant and bone tissue is prone to Stress concentration and stress shielding effect, the bone interface is prone to chronic fatigue damage, leading to loosening, sinking and dislocation of the implant, which affects the success rate of the implant; at the same time, its biological activity is poor, and it lacks osteoinductive and osteoconductive capabilities, so The healing time is longer, and it usually takes 3-6 months to achieve stable osseointegration
Moreover, when this commercial dental implant is applied to immediate implantation, there will also be problems such as tooth extraction wounds that make immediate implantation difficult to close the wound at the initial stage and poor stability in the initial stage of implantation.

Method used

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  • 3D (three-dimensional) printing bionic dental implant and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the present embodiment provides a 3D printing bionic dental implant, including an implant body 1, and also includes a chitosan nano-coating integrated with the outer surface of the implant body 1, and the implant body 1 includes a dental neck The root abutment and the tooth root 2 integrally connected with the tooth neck abutment located under the tooth neck abutment, wherein the tooth root 2 is a full-thickness three-dimensional network structure.

[0026] In the above structure, the tooth root 2 is a three-dimensional network structure. Compared with traditional dental implants, this three-dimensional network structure is similar to the structure of trabecular bone. The surface area of ​​implant and osseointegration is conducive to the rapid attachment of blood and the promotion of blood metabolism, which is beneficial to osseointegration and shortens the osseointegration time. Moreover, in this structure, the outer surface of the implant b...

Embodiment 2

[0033]This embodiment also provides a method for manufacturing the above-mentioned 3D printed bionic dental implant, comprising the following steps:

[0034] Step 1: Obtain the 23D image of the patient's tooth root before surgery, extract the target subtraction tooth data through region growth, establish a 3D model of the bionic dental implant, and perform format conversion after smoothing, noise reduction, trimming, and optimization of the 3D model;

[0035] Step 2: Use the selective electron beam sintering equipment Q10 to make a 3D entity. The conditions are: use titanium alloy powder as the raw material, the layer thickness is 0.05mm, the production speed is 80cm3 / h, and helium is used as the inert protective gas; Clean up in the powder recovery system, recover the powder and perform ultrasonic cleaning for the first time, and then place it in acetone, ethanol and double distilled water for ultrasonic oscillation treatment for 15 minutes, repeat the cleaning twice, and then...

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Abstract

The invention provides a 3D (three-dimensional) printing bionic dental implant and a manufacturing method thereof and belongs to the field of dental implants. Easy loosing and falling of an implant caused by relatively large difference between the elasticity modulus of the implant and the elasticity modulus of sclerotin can be avoided by the dental implant, the biological activity is relatively strong, and bone healing time can be greatly shortened. The 3D printing bionic dental implant comprises an implant body and also comprises a chitosan nanometer coating which is combined with the outer surface of the implant body into a whole. The implant body comprises a tooth neck base station and a tooth root which is positioned below the tooth neck base station and is integrally connected with the tooth neck base station, wherein the tooth root is of an all-layer three-dimensional network structure. The 3D printing bionic dental implant provided by the invention can be applied to immediate implantation of the dental implant.

Description

technical field [0001] The invention belongs to the field of dental implants, in particular to a 3D printed bionic dental implant and a manufacturing method thereof. Background technique [0002] With the increase of the average age of human beings, the restoration of teeth is becoming more and more important in the medical field, and dental implantation is a key technology in the field of tooth restoration. As a dental implant externally implanted in the oral cavity, the strength of its connection with the alveolar bone, its own mechanical properties and biocompatibility are the main factors affecting the effect of the dental implant. [0003] The current commercial dental implants are full-dense implants, the surface of which is sandblasted and acid-etched to form a nano-microstructure, which is conducive to the growth of bone cells and has become a recognized and successful bone substitute material. However, the full-dense implant has many defects: poor mechanical compat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C8/00B33Y80/00A61L27/34A61L27/50A61L27/54
CPCA61C8/0013A61C8/0016A61C8/0037A61C2008/0046A61L27/34A61L27/50A61L27/54A61L2300/232A61L2300/404A61L2430/12B33Y80/00C08L5/08
Inventor 于新波杨建军李磊孙艳征任浩
Owner THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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