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US 12,740,850 B2Granted
Facial shape classification method and denture design device therefor
AssigneeOsstem Implant Co., Ltd.
InventorsYoung Seok Kim, In Ho Cho, Kyoo Ok Choi
Life of this patent
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Abstract
Disclosed are a facial shape classification method and a denture design device therefor. A facial shape classification method according to an embodiment and a denture design device therefor classify and provide an artificial tooth shape according to the facial shape of a patient, and thus can minimize a user's manipulation, reduce inconvenience, and increase a patient's aesthetic satisfaction.
Claims8
A facial shape classification method performed by a denture design device, the method comprising:
- acquiring facial data of a patient;
- extracting a plurality of landmarks from the acquired facial data, the plurality of landmarks including endpoints on both sides of a one-third portion of a forehead area, tragus points on both sides of a face, and gonion points on both sides of the face in the facial data;
- calculating a first distance of a first line segment connecting the endpoints on both sides of the one-third portion of the forehead area in the facial data, a second distance of a second line segment connecting the tragus points on both sides of the face, and a third distance of a third line segment connecting the gonion points on both sides of the face;
- classifying the facial shape of the patient based on a comparison of the calculated first, second, and third distances;
- classifying an artificial tooth shape of the patient according to the classified facial shape;
- and
- displaying, on a screen of the denture design device, an artificial tooth shape classified according to the classified facial shape and a simulation process conducted through a control unit of the denture design device, and outputting the artificial tooth shape through a three-dimensional printer.
4 more elements
A denture design device comprising:
- a data acquisition unit configured to acquire facial data of a patient;
- a control unit configured to extract a plurality of landmarks from the acquired facial data, the plurality of landmarks including endpoints on both sides of a one-third portion of a forehead area, tragus points on both sides of a face, and gonion points on both sides of the face in the facial data, calculate a first distance of a first line segment connecting the endpoints on both sides of the one-third portion of the forehead area in the facial data, a second distance of a second line segment connecting the tragus points on both sides of the face, and a third distance of a third line segment connecting the gonion points on both sides of the face, classify a facial shape of the patient based on a comparison of the calculated first distance, second distance, and third distance, and classify an artificial tooth shape of the patient according to the classified facial shape;
- and
- an output unit configured to display, on a screen of the denture design device, the artificial tooth shape classified according to the classified facial shape and a simulation process conducted through the control unit of the denture design device, and output the artificial tooth shape through a three-dimensional printer.
1 more element
Dependencies are inferred from the claim text.