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Ceramic processing for the direct manufacture of customized labial and lingual orthodontic brackets

  • US 10,241,499 B1
  • Filed: 02/11/2016
  • Issued: 03/26/2019
  • Est. Priority Date: 02/11/2015
  • Status: Active Grant
First Claim
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1. A method of manufacturing customized ceramic labial/lingual orthodontic brackets by digital light processing, said method comprising:

  • measuring dentition data of a profile of teeth of a patient, wherein a scanning accuracy of the measuring is less than 0.02 mm;

    based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient'"'"'s teeth using reverse engineering;

    designing a 3D CAD bracket structure model for a single labial or lingual orthodontic bracket structure including a slot;

    importing data related to the 3D CAD bracket structure model into a photo-reactive slurry-based Digital Light Processing (DLP) machine;

    directly producing the ceramic bracket in the DLP machine by layer manufacturing, wherein a manufacturing accuracy is from 2 to about 20 μ

    m, and wherein a thickness of the manufactured layers is from 5 to 100 micrometers (μ

    m) based on the resolution requirements of the bracket area.

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