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Selective laser sintering indirect manufacturing method of individuation tongue side orthodontic bracket

A technology of selective laser sintering and orthodontic brackets, which is applied in the direction of manufacturing tools, brackets, program control, etc., can solve the problems of increasing the burden on patients, affecting the treatment effect, and failing to meet the individual needs of patients, so as to save procedures and apply Wide range, well-coordinated effects

Inactive Publication Date: 2011-06-15
SOUTH CHINA UNIV OF TECH
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  • Claims
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Problems solved by technology

[0006] The existing lingual bracket manufacturing method is standardized production, which cannot meet the individual needs of patients, thus affecting the treatment effect and increasing the burden on patients

Method used

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  • Selective laser sintering indirect manufacturing method of individuation tongue side orthodontic bracket
  • Selective laser sintering indirect manufacturing method of individuation tongue side orthodontic bracket
  • Selective laser sintering indirect manufacturing method of individuation tongue side orthodontic bracket

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0032] As shown in Figure 1, the technological process of the indirect manufacturing method of selective laser sintering of individualized lingual orthodontic brackets of the present invention is:

[0033] (1) Measure the dentition data to obtain the shape and structure parameters of the teeth; the measurement of the dentition data adopts CT tomography or a non-contact three-dimensional scanner to directly scan the teeth, or firstly make a model of the teeth and then perform three-dimensional scanning measurement, the said The scanning accuracy is better than 0.02mm;

[0034] (2) According to the dentition data, the three-dimensional CAD model of the tooth as shown in Figure 2 is established by reverse engineering method, and stored in the computer in STL format; the out...

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Abstract

The invention provides a method for indirectly manufacturing an individualized lingual orthodontic bracket by selective laser sintering, which comprises the steps of measuring teeth data and obtaining outer structure parameters of the teeth; building a three dimensional CAD model of the teeth by reverse engineering and storing the same in a computer; designing the structural model (including designing a bottom plate through which the bracket is contacted with the surface of the teeth) for each bracket according to the orthodontic requirements, bracket manufacturing materials and the shape characteristics of the teeth; determining a trough of the bracket according to the ideal position in which the bracket can be placed; manufacturing an investment pattern required by the bracket accordingto the requirement of the structural model of the bracket and the investment casting by using the selective laser sintering rapid prototyping technology and adopting the layered manufacturing method;and manufacturing the metal bracket by adopting investment casting. The method has the advantages of saved procedure, time and cost, wide application range and diversified manufacturing materials. Furthermore, the method can realize customized manufacture with high precision according to individual difference, and the bracket can be better attached to the surfaces of the teeth.

Description

technical field [0001] The invention relates to an orthodontic bracket manufacturing technology for correcting teeth, in particular to an indirect manufacturing method of a selected area laser sintering of a personalized lingual orthodontic bracket. Background technique [0002] In order to align the irregular teeth, orthodontic technology is widely used in clinical applications. A common practice is to bond the bracket to the tooth surface, and the elastic arch wire passes through the groove of the bracket and transmits the correction force. Since the 1970s, as an aesthetic orthodontic method, lingual orthodontic correction technology has attracted widespread attention and attention. Lingual orthodontics glues the brackets on the tongue side of the teeth instead of the lip side as in labial orthodontics. The lingual brackets are glued to the lingual surface of the teeth, which will not affect the patient's social activities due to the visual factor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/04G05B19/4097A61C7/14A61B6/14
Inventor 王淑范杨永强程大伟
Owner SOUTH CHINA UNIV OF TECH
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