Preparation method of 3D printing porous root-shaped implant tooth

A 3D printing and dental implant technology, which is applied in the fields of dental implants, dentistry, and dental prosthetics, etc., can solve the problems of inability to accurately control the porous morphology and structure, and it is difficult to ensure the micropore structure parameters of porous materials, so as to shorten the time for dental implants , to meet the accuracy and ensure the effect of stress distribution

Active Publication Date: 2019-04-16
陕西西科微智三维数字医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing porous titanium implants are generally processed by traditional manufacturing processes such as bead spraying, powder sintering, solid-state foaming, carbon fiber compression sintering, and polymer replication, whi

Method used

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  • Preparation method of 3D printing porous root-shaped implant tooth

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preparation example Construction

[0024] The present invention is a method for preparing 3D printing porous root-shaped dental implants. The dental implant prepared by the method is such as figure 1 As shown, the method includes the following steps:

[0025] Step 1) Use CBCT to capture the medical image data of the maxillofacial area of ​​the patient, and import the maxillofacial medical image data into 3D image generation and editing processing software. The 3D image generation and editing processing software is Mimics software, which is adjusted according to the threshold of tissue density Edit the imported maxillofacial medical image data, delete the image of non-root 1, only keep the medical image data of the affected tooth, convert and export the STL format file of the affected tooth.

[0026] In step 1), edit the imported maxillofacial medical image data according to the threshold of tissue density. To delete the image of non-root 1 is specifically to adjust the threshold of tissue density to a high tissue de...

Embodiment 1

[0037] This embodiment provides a method for preparing 3D printed porous root implants, including the following steps:

[0038] Step 1) Use CBCT to take the medical image data of the maxillofacial area of ​​the patient, import the maxillofacial medical image data into Mimics software, adjust the threshold of tissue density to 1250Hu, and compare the imported maxillofacial medicine according to the threshold of tissue density The image data is edited, the image of non-root 1 is deleted, only the medical image data of the tooth is retained, and the STL format file of the tooth is converted and exported.

[0039] Step 2) Import the STL format file of the affected tooth into Geomagic studio software to obtain the model of the affected tooth. Adjust the mesh of the affected tooth model to delete the visible sharp corners, undercuts and undulations, perform smoothing, and use the quadrilateral dot layout principle for precision Surface fitting, get the STL fitting model of the affected t...

Embodiment 2

[0044] This embodiment provides a method for preparing 3D printed porous root implants, including the following steps:

[0045] Step 1) Use CBCT to capture the medical image data of the maxillofacial area of ​​the patient, import the maxillofacial medical image data into Mimics software, adjust the threshold of tissue density to 3810Hu, and compare the imported maxillofacial medicine according to the threshold of tissue density The image data is edited, and the imported maxillofacial medical image data is edited and deleted according to the threshold of tissue density. Only the medical image data of the tooth is retained, and the STL format file of the tooth is converted and exported.

[0046] Step 2) Import the STL format file of the affected tooth into Geomagic studio software to obtain the model of the affected tooth. Adjust the mesh of the affected tooth model to delete the visible sharp corners, undercuts and undulations, perform smoothing, and use the quadrilateral dot layout ...

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Abstract

The invention discloses a preparation method of a 3D printing porous root-shaped implant tooth, which comprises the following steps of: firstly, shooting medical image data of a maxillofacial part ofa patient by using CBCT, introducing the medical image data of the maxillofacial part into 3D image generation and editing processing software, editing, and converting and exporting an STL format fileof the affected tooth; obtaining an STL fitting model of the affected tooth by using the STL format file of the affected tooth; introducing the STL fitting model of the affected tooth into 3D modeling software to carry out reverse reconstruction and positive design of the implant tooth; and finally, printing the implant tooth by using a 3D printing device. The implant tooth prepared by the methodcan increase the contact area with normal bone through the pores on the surface, ensure the growth of osteoblasts, accelerate the speed of clinical bone combination and ensure that the implant toot is more stable.

Description

Technical field [0001] The invention belongs to the technical field of dental implants, and specifically relates to a method for preparing 3D printed porous root-shaped dental implants. Background technique [0002] Traditional dental implant materials are mainly titanium and titanium alloys, which have good mechanical properties and biocompatibility and become the most widely used materials in oral implants. However, the elastic modulus of the currently widely used solid titanium implants is significantly higher than that of human bone tissue, and stress shielding and stress concentration can occur after implantation, which can cause the degradation and absorption of the bone tissue around the implant, and even cause the implant to loosen. In addition, the shape of the implant is mainly a surface thread structure. This screw-type implantation method will cause a very large compression force on the alveolar bone tissue, and the thread structure has a limited effect on increasing ...

Claims

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Application Information

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IPC IPC(8): A61C8/00B33Y10/00B33Y50/00B33Y80/00
CPCA61C8/0037B33Y10/00B33Y50/00B33Y80/00
Inventor 黄硕刘昌奎郭芳柴娟朱勇刘宁
Owner 陕西西科微智三维数字医疗科技有限公司
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