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Selective laser melting technology-based pure titanium orthodontic bracket and making method thereof

A technology of orthodontic brackets and laser melting, applied in the direction of brackets, can solve problems such as uneven dentition and inability to match the oral cavity well, and achieve the effects of reducing powder consumption, shortening development time, and good curative effect

Active Publication Date: 2015-11-18
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the shape of the arch wire is the same, it can't fit everyone's mouth well
The direction of the restoring force generated by the second arch wire is certain, but corresponding to different dentition irregularities, the brackets produced in large quantities cannot well meet the needs of patients

Method used

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  • Selective laser melting technology-based pure titanium orthodontic bracket and making method thereof
  • Selective laser melting technology-based pure titanium orthodontic bracket and making method thereof
  • Selective laser melting technology-based pure titanium orthodontic bracket and making method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] figure 1 with figure 2 A flow chart of a pure titanium orthodontic bracket based on selective laser melting technology and a manufacturing method thereof according to the present invention is shown, including the following steps:

[0029] S1. Perform CT scan on malocclusion to obtain three-dimensional data of jaws, teeth, etc.;

[0030] S2. Eliminate noise points through reverse engineering, and perform feature extraction and 3D reconstruction to obtain a 3D model of orthodontic brackets;

[0031] S3. Use finite element analysis technology to analyze the results of the maximum equivalent stress of orthodontic brackets, and judge whether they meet the properties of pure titanium materials under the double safety factor; The 3D model is repaired and updated to meet the conditions; if the conditions are met, enter the next step;

[0032] S4. Save the 3D model of the orthodontic bracket that needs to be printed, add thin-wall support to the 3D model of the orthodontic b...

Embodiment 2

[0041] image 3 Shown is a pure titanium orthodontic bracket based on selective laser melting technology, including a tank body 1, a working wing 2, and a base plate 3, and its pure titanium orthodontic bracket is manufactured according to the method in Example 1 .

[0042]To sum up, the beneficial effects of the present invention are: adopting advanced computer-aided design, combined with medical imaging technology CT and high-precision selective laser three-dimensional forming technology, oral examination, structural design of orthodontic brackets, finite element analysis , selective laser three-dimensional molding, etc., to design the most suitable personalized pure titanium orthodontic self-ligating bracket for each patient according to the different oral conditions of each patient, which brings good news to the rehabilitation of patients and can greatly shorten the time for new products. Development time;

[0043] The direct additive molding of pure titanium orthodontic...

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Abstract

The invention relates to a selective laser melting technology-based pure titanium orthodontic bracket and a making method thereof. Oral cavity inspection, structure design of the orthodontic bracket, finite element analysis and selective laser stereo molding are organically combined by adopting an advanced computer assisted design and combining a medical imaging technology CT and a high-precision selective laser stereo molding technology in order to design a customized pure titanium orthodontic bracket being most suitable for patients according to different oral cavity conditions of all patients, so the new product development time is greatly shortened; direct additive fabrication of the pure titanium orthodontic bracket is realized, the orthodontic bracket obtained through the method is highly consistent with the movement direction required by the oral teeth of a patient, and the arch wire restoring force is adjusted to reduce the discomfort to minimum; and unscanned titanium powder goes through a matching powder screening system, and above 98% of the titanium powder material can be recycled, so the powder consumption is greatly reduced, and benefit is brought for users.

Description

technical field [0001] The invention relates to the field of biomedical devices, and more specifically relates to a pure titanium orthodontic bracket based on selective laser melting technology and a manufacturing method thereof. Background technique [0002] In international orthodontics clinics, square wire or straight wire orthodontics are widely used in order to treat occlusal deformities and align irregular teeth. Square wire arch or straight wire arch orthodontic treatment technology The square wire arch or straight wire arch orthodontic appliance is bonded to the labial surface of the teeth, and the orthodontic appliance is placed in the groove of the orthodontic appliance. The orthodontic wire transmits the orthodontic force to the teeth, thereby pulling the teeth to move, and finally aligning the teeth. Square wire or straight wire orthodontics can achieve good orthodontic effects, but due to aesthetic or occupational reasons, orthodontic patients hope to receive i...

Claims

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Application Information

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IPC IPC(8): A61C7/14
Inventor 张弓彭忠凯梁济民罗良维陈贤帅张鹏林天赐黄达鸿
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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