According to an embodiment, a wearable electronic device may include a motion sensor, an audio sensor, a display, a memory, and a processor electrically connected to the motion sensor, the audio sensor, and the memory. The processor may be configured to obtain motion sensing information via the motion sensor, obtain an audio signal corresponding to the motion sensing information via the audio sensor, identify a tooth-brushing hand motion type corresponding to the motion sensing information, identify an audio signal pattern corresponding to the tooth-brushing hand motion type, and identify, based on the tooth-brushing hand motion type and the audio signal pattern, a tooth-brushing hand motion. Other embodiments may also be possible.

A sheet-shaped oral appliance is provided that is detachably attached to an oral body device and includes a functional portion with a sensor unit that acquires information in an oral cavity and an energy irradiation unit that radiates energy into the oral cavity, an electrical connection portion, and a wiring portion that connects at least one of the sensor unit and the energy irradiation unit to the electrical connection portion. The functional portion, the connection portion, and the wiring portion are formed by a wiring layer having first and second main surfaces that oppose each other, a first insulating layer arranged on the first main surface and a second insulating layer arranged on the second main surface. Moreover, in the functional portion, a thickness of the first insulating layer is smaller than a thickness of the second insulating layer.

Methods and apparatuses for monitoring either or both the performance of an orthodontic appliance for repositioning a patient's teeth and/or the user compliance in wearing the appliance using a biosensor. The apparatuses described herein may include one or more sensors, including biosensors, electrical sensors, or both, configured to generate sensor data related to user compliance and/or repositioning of the patient's teeth by an orthodontic appliance.

Provided are moving image obtaining means that obtains a moving image of a region including at least a mouth or a peripheral portion of the mouth in a face, analysis means that analyzes a chewing action based on the moving image of the region obtained by the moving image obtaining means, quality determination means that determines quality of the chewing action based on information of the chewing action analyzed by the analysis means, and extraction means that extracts assistance information corresponding to the chewing quality determined by the quality determination means, from chewing information storage means.

Systems and methods for monitoring food intake include an air pressure sensor for detecting ear canal deformation, according to some implementations. For example, the air pressure sensor detects a change in air pressure in the ear canal resulting from mandible movement. Other implementations include systems and methods for monitoring food intake that include a temporalis muscle activity sensor for detecting temporalis muscle activity, wherein at least a portion of the temporalis muscle activity sensor is coupled adjacent a temple portion of eyeglasses and disposed between the temple tip and the frame end piece. The temporalis muscle activity sensor may include an accelerometer, for example, for detecting movement of the temple portion due to mandibular movement from chewing.

Provided are chewing information storage means that stores information about chewing quality, muscle activity obtaining means that obtains a muscle activity signal of masticatory muscle of a person, analysis means that frequency-analyzes the muscle activity signal obtained by the muscle activity obtaining means, and analyzes chewing behavior based on the frequency-analyzed muscle activity signal, quality determination means determines quality of the chewing behavior based on information of the chewing behavior analyzed by the analysis means, and extraction means that extracts assistance information corresponding to the chewing quality determined by the quality determination means, from chewing information storage means.

A feeding analysis system reviews collected feeding data and provides analysis of data regarding nutritive sucking, feeding, and related activity.

An object is to provide a device for analyzing occlusion pressure with which it is possible to measure occlusion pressure with a high positional accuracy by using data obtained by versatile methods, including an operation device, wherein the operation device calculates a formula of a first dental arch based on an occlusion pressure data, calculates a formula of a second dental arch based on an occlusal contact positional data, calculates a transformation matrix that approximates the formula of the first dental arch to the formula of the second dental arch, carries out an operation to transform positional information included in the occlusion pressure data to a new positional information with the transformation matrix, and outputs an occlusion pressure data including the new positional information.

Methods of lowering heart rate during physical activity for a user in need of an increase in their smallest concentric airway cross-sectional area include providing the person with a mandibular repositioning device having a maxillary tooth covering having a driver flange protruding laterally outward on a right and left side proximate a backmost teeth mold and a mandibular tooth covering having a protrusive flange extending cranially therefrom positioned to have a posterior side engaged with the anterior side of each driver flange. The anterior side of each driver flange has a convex curvature, and the posterior side of each protrusive flange has a concave-to-convex curvature from its base toward its most cranial point and a convex portion of the concave-to convex curvature engages the convex curvature of the driver flange in a rest position, and downward movement of the mandibular piece moves the user's mandible forward as well.

A method for obtaining images for assessing oral health using a mobile device (103) having a screen (205) on one side of a housing of the mobile device (103) and a camera (207) on the opposite side of the housing (103), comprising: —on the mobile device (103) performing a dialogue with a user (101) of the mobile device (103), —determining an area of the user's oral cavity with symptoms based on the dialogue, —instructing the user (101) to position him-/herself in front of a minor (102) for capturing an image of the area of the user's oral cavity with symptoms, —capturing at least one image of the area of the user's oral cavity with symptoms with the camera (207) as instructed, and—either processing the at least one image locally on the mobile device (103), or—transmitting the at least one image or a representation thereof to a remote server (409).