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Production process of bracket-free invisible appliance

An invisible aligner and production process technology, applied in the field of orthodontics, can solve problems such as aligner burrs and cutter passivation, and achieve the effect of avoiding burrs and avoiding passivation

Inactive Publication Date: 2021-04-27
北京缔佳医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention provides a kind of production process of invisible aligners without brackets, to solve the problems of burrs and cutter passivation of the aligners when producing invisible aligners without brackets in the existing process

Method used

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  • Production process of bracket-free invisible appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The present embodiment provides a production process of a bracketless invisible aligner, the production process comprising the following steps:

[0027] S1. heating and softening the polymer membrane, and hot-pressing the film on the tooth model to obtain a molded membrane that wraps the tooth model;

[0028] S2. Transporting the formed film to the cutting area for cutting and separating the tooth model to obtain a bracket-free invisible appliance;

[0029] Infrared heating is performed on the formed film obtained in step S1 during the process of transporting the formed film to the cutting area.

[0030] There is a flow time in the process of transferring the formed diaphragm wrapped with the tooth model obtained in step S1 to the cutting area in step S2, and the formed diaphragm will be cooled due to the flow time, so that the formed diaphragm will be easy to cut when performing subsequent cutting. Burrs are generated, and the cutting blade will be easily passivated; ...

Embodiment 2

[0032] As in the production process described in Example 1, infrared heating is performed on the formed film during the cutting process in step S2. Furthermore, the entire cutting process is carried out in infrared heating to avoid the cooling of the diaphragm due to the long cutting process, so that the diaphragm is kept at a certain temperature during the cutting process, so that cutting will not produce burrs and the cutting blade will not passivate.

Embodiment 3

[0034] As in the production process described in Embodiment 1 or 2, during the process of transporting to the cutting area or during the process of cutting, the formed film is heated by infrared to a temperature lower than its melting point. In this way, the infrared heating temperature is too high to cause deformation of the formed diaphragm.

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Abstract

The invention discloses a production process of a bracket-free invisible appliance. The production process includes the steps of S1, heating and softening a polymer membrane, and carrying out hot-pressing membrane pressing on a tooth model to obtain a formed membrane wrapping the tooth model; S2, conveying the formed membrane to a cutting area for cutting and separating the tooth model to obtain the bracket-free invisible appliance; and in the process that the formed membrane obtained in the step S1 is conveyed to the cutting area, conducting infrared heating on the formed membrane. According to the production process of the bracket-free invisible appliance, the formed membrane is subjected to infrared heating in the process of conveying the formed membrane to the cutting area, so that the formed membrane is prevented from being cooled in the circulation time; and the formed membrane is cut at a certain temperature, so that burrs are prevented from being generated on the formed membrane or the bracket-free invisible appliance, and meanwhile, passivation of a cutting tool is avoided.

Description

technical field [0001] The invention relates to the technical field of orthodontics, in particular to a production process of a bracketless invisible appliance. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to dental health and beauty. Bracket-free invisible orthodontic technology is rapidly emerging and developing, and product manufacturers need to provide solutions and suppress invisible aligners suitable for each different stage, so the demand for clear aligners is also increasing. [0003] The existing invisible aligner laminating technology is to put the bottom of the tooth model after three-dimensional rapid prototyping into a dental laminating machine for hot-pressing lamination. The principle of hot pressing is to heat and soften the polymer diaphragm at high temperature before pressing the film. After the heating is completed, the softened diaphragm is wrapped on the surface of the rapid prototyp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C7/00A61C7/08A61C9/00B29C64/10B33Y10/00
CPCA61C7/002A61C7/08A61C9/004B29L2031/40B33Y10/00B29C64/10
Inventor 田雷张天举吴斌
Owner 北京缔佳医疗器械有限公司
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