Ceramic processing for the direct manufacture of customized labial and lingual orthodontic brackets
First Claim
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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Abstract
A method of manufacturing customized ceramic labial/lingual orthodontic brackets by digital light processing, said method comprises measuring dentition data of a profile of teeth of a patient, wherein measuring dentition data is performed using a CT scanner or intra-oral scanner, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient'"'"'s teeth using reverse engineering, and saving the 3D CAD model on a computer, designing a 3D CAD bracket structure model for a single labial or lingual bracket structure, importing the 3D CAD bracket structure model into a Digital Light Processing (DLP) machine, directly producing the bracket by layer manufacturing.
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Citations
34 Claims
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1. A method of manufacturing customized ceramic labial/lingual orthodontic brackets by digital light processing, said method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification