# US 2025/0152007 A1 · Oral scanner system

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- Number: US 2025/0152007 A1
- Document ID: US20250152007A1
- Status: Published application
- Kind: A1
- Application number: 19/015,080
- Filed: 2025-01-09
- Published: 2025-05-15
- Earliest claimed: 2022-07-04
- Assignees: Braun GmbH
- Applicants: Braun GmbH
- Inventors: Ingo VETTER; Reiner ENGELMOHR; Bettina ROWLANDS; Faiz Feisal SHERMAN; Pei LI; Xinru CUI
- Web page: https://patentgrep.com/patent/US20250152007A1

## CPC

- A61B 5/4542: {Evaluating the mouth, e.g. the jaw}
- A61B 1/00009: {of image signals during a use of endoscope}
- A61B 1/000096: {using artificial intelligence}
- A61B 1/00016: {using wireless means}
- A61B 1/00039: {provided with input arrangements for the user}
- A61B 1/00043: {provided with output arrangements}
- A61B 1/0005: {combining images e.g. side-by-side, superimposed or tiled}
- A61B 1/00172: {with means for scanning}
- A61B 1/05: characterised by the image sensor, e.g. camera, being in the distal end portion
- A61B 1/051: {Details of CCD assembly}
- A61B 1/24: for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
- A61B 5/0059: {using light, e.g. diagnosis by transillumination, diascopy, fluorescence (photoacoustic A61B5/0093; optical measurement of heart rate A61B5/02416; optical measurement of blood flow A61B5/0261; optical measurement of analytes A61B5/1455)}
- A61B 5/0062: {Arrangements for scanning}
- A61B 5/0084: {for introduction into the body, e.g. by catheters (A61B5/1459 takes precedence)}
- A61B 5/0088: {for oral or dental tissue}
- A61B 5/067: {using accelerometers or gyroscopes}
- A61B 5/4547: {Evaluating teeth}
- A61B 5/6846: {specially adapted to be brought in contact with an internal body part, i.e. invasive}
- A61B 5/7221: {Determining signal validity, reliability or quality (preventing, reducing or removing noise induced by motion artefacts A61B5/7207; noise originating from a therapeutic or surgical apparatus A61B5/7217)}
- A61B 5/7264: {Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 5/7425: {Displaying combinations of multiple images regardless of image source, e.g. displaying a reference anatomical image with a live image}
- A61B 5/743: {Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots}
- A61C 17/221: {Control arrangements therefor}
- G16H 40/63: for local operation
- G16H 40/67: for remote operation
- A61B 2560/045: with a separable interface unit, e.g. for communication
- A61B 2560/0462: Apparatus with built-in sensors
- A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
- A61B 2562/028: Microscale sensors, e.g. electromechanical sensors [MEMS]
- A61B 2562/046: in a matrix array
- A61B 2576/00: Medical imaging apparatus involving image processing or analysis (A61B1/00009, A61B6/52 and A61B8/52 take precedence)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

The present application is concerned with an oral scanner system having an oral scanner having at least one oral health sensor structured and/or arranged for outputting oral health sensor data relating to at least one oral health condition, the oral scanner being structured and/or arranged for performing a scanning procedure of at least a portion of an oral cavity of a subject using the oral health sensor for acquiring the oral health sensor data, a processor structured and/or arranged to receive the oral health sensor data, and to either process the oral health sensor data to determine oral health data relating to the at least one oral health condition, and after a completion of the scanning procedure to classify the oral health data with respect to at least two condition classes relating to the at least one oral health condition and to determine one condition class from the at least two condition classes to which the oral health data belongs, or to classify, preferably after a completion of the scanning procedure, the oral health sensor data with respect to at least two condition classes relating to the at least one oral health condition and to determine one condition class from the at least two condition classes to which the oral health sensor data belongs, and a feedback unit structured and/or arranged to provide feedback about the determined condition class.

## Claims

### Claim 1

An oral scanner system comprising:
an oral scanner having at least one oral health sensor structured and/or arranged for outputting oral health sensor data relating to at least one oral health condition, the oral scanner being structured and/or arranged for performing a scanning procedure of at least a portion of an oral cavity of a subject using the oral health sensor for acquiring the oral health sensor data;
a processor structured and/or arranged
to receive the oral health sensor data, and
to either process the oral health sensor data to determine oral health data relating to the at least one oral health condition, and after a completion of the scanning procedure to classify the oral health data with respect to at least two condition classes relating to the at least one oral health condition and to determine one condition class from the at least two condition classes to which the oral health data belongs, or
to classify, preferably after a completion of the scanning procedure, the oral health sensor data with respect to at least two condition classes relating to the at least one oral health condition and to determine one condition class from the at least two condition classes to which the oral health sensor data belongs; and
a feedback unit structured and/or arranged to provide feedback about the determined condition class.

### Claim 2 (depends on 1)

The oral scanner system in accordance with claim 1, further comprising a position detector structured and/or arranged for acquiring and outputting position sensor data relating to a position or location at which the oral scanner currently performs the scanning procedure or at which the oral scanner has performed the scanning procedure at a given time instant and wherein the processor is structured and/or arranged
to receive the position sensor data,
to process the position sensor data to determine at least one discrete position or location from at least two discrete positions or locations of the at least portion of the oral cavity at which the oral scanner is currently performing the scanning procedure or at which the oral scanner has performed the scanning procedure at a given time instant,
to assign the oral health sensor data and/or the oral health data to the determined discrete position or location to create discretely position-resolved or location-resolved oral health sensor data and/or discretely position-resolved or location-resolved oral health data, and
to determine, preferably after a completion of the scanning procedure, one condition class from the at least two condition classes to which the discretely position-resolved or location-resolved oral health sensor data and/or the discretely position-resolved or location-resolved oral health data belongs for each of the at least two different discrete positions or locations; and
the feedback unit being structured and/or arranged to provide feedback about the determined condition classes for each of the at least two different discrete positions or locations.

### Claim 3 (depends on 2)

The oral scanner system in accordance with claim 2, wherein the processor is structured and/or arranged to perform the classification by comparing at least one oral health datum from the oral health sensor data and/or the oral health data with at least one threshold, preferably with at least two different thresholds.

### Claim 4 (depends on 3)

The oral scanner system in accordance with claim 3, wherein the processor is structured and/or arranged to perform the classification by comparing at least one oral health datum from the discretely position-resolved or location-resolved oral health sensor data and/or the discretely position-resolved or location-resolved oral health data with at least one threshold for each of the at least two different discrete positions or locations.

### Claim 5 (depends on 4)

The oral scanner system in accordance with claim 4, wherein the processor is structured and/or arranged to modify the at least one threshold in dependence on a temporal evolvement of the determined condition class, preferably in dependence on a temporal evolvement of the determined condition class for each of the at least two discrete positions or locations.

### Claim 6 (depends on 5)

The oral scanner system in accordance with claim 5, wherein the processor is structured and/or arranged to differently classify the oral health data in the at least two different discrete positions or locations, preferably wherein at least one threshold or one parameter used in the classification is different in the two different discrete positions or locations.

### Claim 7 (depends on 6)

The oral scanner system in accordance with claim 6, wherein the processor is structured and/or arranged to use, after a completion of the scanning procedure, a classifier for classifying the oral health sensor data and/or the oral health data, which classifier implements at least one classification algorithm from a list comprising linear classifiers, support vector machines, quadratic classifiers, kernel estimation, boosting, transformers, decision trees, neural networks, genetic programming and learning vector quantization.

### Claim 8 (depends on 7)

The oral scanner system in accordance with claim 7, wherein the position sensor comprises at least one of an accelerometer or gyroscope, preferably wherein the accelerometer or gyroscope is realized as a MEMS sensor.

### Claim 9 (depends on 8)

The oral scanner system in accordance with claim 8, wherein the oral health sensor is an optical sensor such as an M times N array of light sensitive sensor elements, preferably wherein the oral health sensor is a camera.

### Claim 10 (depends on 9)

The oral scanner system in accordance with claim 9, wherein the feedback unit comprises at least one visual feedback element for each of the at least two discrete positions or locations and/or wherein the feedback unit comprises a display unit.

### Claim 11 (depends on 10)

The oral scanner system in accordance with claim 10, wherein the feedback unit is realized as or by a separate device, preferably wherein the separate device is a computer, a notebook, a laptop, a tablet, a smartphone, or a smart watch, preferably wherein the processor is at least partially located at or within the separate device.

### Claim 12 (depends on 11)

The oral scanner system in accordance with claim 11, wherein the oral scanner comprises a scanner communicator and the separate device comprises a separate device communicator and the scanner communicator and the separate device communicator are structured and/or arranged for a wireless communication.

### Claim 13 (depends on 12)

The oral scanner system in accordance with claim 12, wherein the feedback unit is structured and arranged to visualize a depiction of the at least portion of the oral cavity, preferably comprising at least a visualization of the dentition, and wherein the feedback about the least one oral health condition for the at least two positions or locations is additionally visualized, preferably wherein the feedback about the least one oral health condition for the at least two positions or locations is visually overlaid onto the depiction of the dentition or the depiction of the dentition is visually amended to reflect the feedback.

### Claim 14 (depends on 13)

The oral scanner system in accordance with claim 13, further comprising an oral care device having a device communicator and wherein the processor is structured and/or arranged to determine at the end of the scanning procedure control data based on the oral health sensor data acquired during the scanning procedure, and preferably to send the control data to the oral care device, and wherein the oral care device is structured and/or arranged to select at least one operational setting from at least two operational settings of the oral care device in dependence on the control data.

### Claim 15

An oral scanner system comprising
an oral scanner comprising an oral health sensor having a camera structured and/or arranged for acquiring image data from at least a portion of a dentition of a subject during an optical scanning procedure and a position detector structured and/or arranged for acquiring position sensor data during the optical scanning procedure, wherein the position sensor comprises at least one from the list comprising an accelerometer and a gyroscope;
a processor structured and arranged
to receive the image data and the position sensor data,
to process the position sensor data to determine at least one discrete position or location from at least two discrete positions or locations of the at least portion of the oral cavity at which the oral scanner is currently performing the scanning procedure or has performed the scanning procedure at a given time instant, and
either to process the image data to determine oral health data relating to the at least one oral health condition for each of the at least two discrete positions or locations, and after a completion of the scanning procedure to classify the oral health data with respect to at least two condition classes relating to the at least one oral health condition and to determine one condition class from the at least two condition classes to which the oral health data belongs for each of the at least two discrete positions or locations, or
to classify, preferably after a completion of the scanning procedure, the image data with respect to at least two condition classes relating to the at least one oral health condition and to determine one condition class from the at least two condition classes to which the image data belongs for each of the at least two discrete positions or locations; and
a display unit structured and/or arranged to provide feedback about the determined condition classes for each of the at least two discrete positions or locations.
