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US 10,390,913 B2Granted
Diagnostic intraoral scanning
AssigneeAlign Technology, Inc.
InventorsMichael Sabina, Avi Kopelman, Eric Kuo, Gilad Elbaz, Assaf Weiss, Doron Malka, Ofer Saphier, Eliahou Franklin Nizard, Ido Tishel, Shai Ayal, Maayan Moshe
Life of this patent
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Abstract
Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.
Claims29
A method comprising:
- displaying a three-dimensional (3D) model of a patient's dental arch;
- displaying a viewing window over at least a portion of the 3D model of the patient's dental arch;
- receiving, from a user, a change in a relative position between the viewing window and the 3D model of the patient's dental arch;
- identifying, from both the 3D model of the patient's dental arch and a plurality of images of a patient's dental arch taken from different angles and positions relative to the patient's dental arch, a near-infrared (near-IR) image taken at an angle and position that approximates a relative angle and position between the viewing window relative to the 3D model of the patient's dental arch;
- and
- displaying the identified near-IR image taken at the angle and position that approximates the angle and position between the viewing window relative to the 3D model of the patient's dental arch.
3 more elements
A method comprising:
- displaying a three-dimensional (3D) model of a patient's dental arch;
- displaying a viewing window over a portion of the 3D model of the patient's dental arch;
- allowing a user to change a relative position between the viewing window and the 3D model of the patient's dental arch, including one or more of:
- an angle between the 3D model of the patient's dental arch relative to a plane of the viewing window, and a portion of the dental arch adjacent to the viewing window;
- and
- continuously, as the user changes the relative position between the viewing window and the 3D model of the patient's dental arch:
- identifying, from both the 3D model of the patient's dental arch and a plurality of pairs of images of a patient's dental arch, wherein each pair of the plurality of pairs includes a first imaging wavelength and a second imaging wavelength each taken at the same angle and position relative to the patient's dental arch, a pair of images taken at an angle and position that approximate the angle and position of the viewing window relative to the displayed 3D model of the patient's dental arch;
- and
- displaying at least one of the identified pair of images taken at the angle and position that approximate the angle and position of the viewing window relative to the displayed 3D model of the patient's dental arch.
6 more elements
A method comprising:
- displaying a three-dimensional (3D) model of a patient's dental arch;
- displaying a viewing window over a portion of the 3D model of the patient's dental arch;
- allowing a user to change a relative position between the viewing window and the 3D model of the patient's dental arch, including one or more of:
- an angle between the viewing window and the patient's dental arch, and a portion of the dental arch adjacent to the viewing window;
- and
- continuously, as the user changes the relative positions between the viewing window and the 3D model of the patient's dental arch:
- identifying, from both the 3D model of the patient's dental arch and a plurality of near-IR images of a patient's dental arch, wherein each near-IR image is taken from a different angle and position relative to the patient's dental arch, a near-IR image taken at an angle and position that approximates the relative angle and position between the viewing window relative to the 3D model of the patient's dental arch;
- and
- displaying the identified near-IR image taken at the angle and position that approximates the angle and position of the viewing window relative to the displayed 3D model of the patient's dental arch.
6 more elements
An intraoral scanning system, the system comprising:
- a hand-held wand having at least one image sensor and a light source configured to emit light at a spectral range within near-infrared (near-IR) range of wavelengths;
- a display output;
- a user input device;
- and
- one or more processors operably connected to the hand-held wand, display and user input device, the one or more processors configured to:
- display a three-dimensional (3D) model of a patient's dental arch on the display output;
- display a viewing window over a portion of the 3D model of the patient's dental arch on the display output;
- change a relative position between the viewing window and the 3D model of the patient's dental arch based on input from the user input device;
- identify, from both the 3D model of the patient's dental arch and a plurality of images of the patient's dental arch taken from different angles and positions relative to the patient's dental arch, a near-infrared (near-IR) image taken at an angle and position that approximates a relative angle and position between the viewing window relative to the 3D model of the patient's dental arch;
- and
- display the identified near-IR image taken at the angle and position that approximates the angle and position between the viewing window relative to the 3D model of the patient's dental arch.
8 more elements
Dependencies are inferred from the claim text.