Back to results
US 11,446,118 B2Granted
Systems and methods for intraoral device quality control
AssigneeSDC U.S. SmilePay SPV
InventorsJohn Dargis, Josh Long
Life of this patent
Estimating the term…
Abstract
A method for analyzing a quality of a dental aligner includes receiving, by a processor, a digital dental aligner generated based on a fabricated dental aligner. The method also includes analyzing, by the processor, the digital dental aligner to identify a quality characteristic of the fabricated dental aligner. The method also includes flagging, by the processor, the fabricated dental aligner based on the identified quality characteristic.
Claims19
A method for analyzing a quality of a dental aligner, the method comprising:
- receiving, by a processor, a digital dental aligner generated based on a fabricated dental aligner, wherein the digital dental aligner is a point cloud of a virtual three-dimensional (3D) model of the fabricated dental aligner;
- analyzing, by the processor, the digital dental aligner to identify a quality characteristic of the fabricated dental aligner by comparing the virtual 3D model of the fabricated dental aligner with a point cloud of a 3D model of a dental arch of a corresponding patient, wherein the comparison comprises:
- identifying, by the processor, one or more common points on the point clouds of the 3D models;
- aligning, by the processor, the virtual 3D model of the fabricated dental aligner and the 3D model of the dental arch of the corresponding patient based on the one or more common points;
- calculating, by the processor, a distance between the one or more common points when the virtual 3D model of the fabricated dental aligner and the 3D model of the dental arch of the corresponding patient are aligned;
- and
- comparing, by the processor, the distance with a threshold;
- and
- flagging, by the processor, the fabricated dental aligner based on the identified quality characteristic, wherein the identified quality characteristic is based on the comparison of the distance with the threshold.
6 more elements
A system for analyzing a quality of a dental aligner, the system comprising:
- a processor and memory coupled to the processor and storing instructions that, when executed by the processor, cause the processor to:
- receive a digital dental aligner generated based on a fabricated dental aligner, wherein the digital dental aligner is a point cloud of a virtual three-dimensional (3D) model of the fabricated dental aligner;
- analyze the digital dental aligner to identify a quality characteristic of the fabricated dental aligner by comparing the virtual 3D model of the fabricated dental aligner with a point cloud of a 3D model of a dental arch of a corresponding patient, wherein the comparison comprises:
- identifying one or more common points on the point clouds of the 3D models;
- aligning the virtual 3D model of the fabricated dental aligner and the 3D model of the dental arch of the corresponding patient based on the one or more common points;
- calculating a distance between the one or more common points when the virtual 3D model of the fabricated dental aligner and the 3D model of the dental arch of the corresponding patient are aligned;
- and
- comparing the distance with a threshold;
- and
- flag the fabricated dental aligner based on the identified quality characteristic, wherein the identified quality characteristic is based on the comparison of the distance with the threshold.
7 more elements
A quality control system comprising:
- an imaging system configured to:
- enhance a quality characteristic of a fabricated dental aligner;
- capture an image of the quality characteristic;
- and
- generate a digital dental aligner including the quality characteristic of the fabricated dental aligner based on the captured image, wherein the digital dental aligner is a point cloud of a virtual three-dimensional (3D) model of the fabricated dental aligner;
- and
- a processor and memory coupled to the processor and storing instructions that, when executed by the processor, cause the processor to:
- analyze the quality characteristic of the digital dental aligner by comparing the virtual 3D model of the fabricated dental aligner with a point cloud of a 3D model of a dental arch of a corresponding patient, wherein the comparison comprises:
- identifying one or more common points on the point clouds of the 3D models;
- aligning the virtual 3D model of the fabricated dental aligner and the 3D model of the dental arch of the corresponding patient based on the one or more common points;
- calculating a distance between the one or more common points when the virtual 3D model of the fabricated dental aligner and the 3D model of the dental arch of the corresponding patient are aligned;
- and
- comparing the distance with a threshold;
- and
- flag the fabricated dental aligner based on the analysis of the quality characteristic, wherein the identified quality characteristic is based on the comparison of the distance with the threshold.
12 more elements
Dependencies are inferred from the claim text.