Patent ID: 11911240
Assignee: ALIGN TECHNOLOGY, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 20:
21. An intraoral scanning system, the system comprising:
a wand having at least one image sensor and a near-infrared (near-IR) light source;
a display output; and
one or more processors operably connected to the wand and the display output, 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;
receive an input from a user changing relative positions of the viewing window and the 3D model of the patient's dental arch; and
continuously identify and display, as the relative positions of the viewing window and the 3D model of the patient's dental arch change, one or both of:
an identified near-IR image derived from a plurality of near-IR images of the patient's dental arch that were taken from different angles and positions relative to the patient's dental arch, wherein the identified near-IR image approximates an angle and position that is between the viewing window and the 3D model of the patient's dental arch, and
an identified visible light image derived from a plurality of visible light images of the patient's dental arch that were taken from different angles and positions relative to the patient's dental arch, wherein the identified visible light image approximates the angle and position that is between the viewing window and the 3D model of the patient's dental arch.