An eating feedback system includes a wearable, a sensor connected to the wearable, a memory, and processor. The memory includes programmed instructions to cause the processor to count a chew number executed by a user based on measurements recorded with the sensor and communicate feedback to the user based on the chew number.

A scanner for obtaining and/or measuring a 3D geometry of a surface of an object includes a camera having an array of sensor elements, a first device for generating a probe light, a device for transmitting the probe light rays towards the object, a device for transmitting light rays returned from the object to the array of sensor elements, an optical system for imaging with a first depth of field on the camera the transmitted light rays, a device for varying the position of the focus plane on the object, a device for obtaining at least one image from said array of sensor elements, a device for determining the in-focus position(s) of sensor elements, and a device for transforming the in-focus data into 3D coordinates.

The present invention relates to a device and a method for measuring osseous quality.

Provided is a mandibular advancement system including: an upper teeth seating part on which upper teeth of a user is placed; a lower teeth seating part on which lower teeth of the user is placed; a driver connected to the upper teeth seating part and the lower teeth seating part and configured to change a relative location of the lower teeth seating part with respect to the upper teeth seating part; a detector configured to detect biometric information of the user; and a controller configured to control driving of the driver based on the biometric information provided by the detector, wherein the driver is disposed outside an oral cavity of the user.

In an embodiment, a non-contact chewing sensor is provided. The chewing sensor includes an optical proximity sensor specifically designed to monitor chewing. An IR emitter/receiver pair of the chewing sensor may be positioned over a muscle of a user that is involved in the chewing process such as the temporalis muscle. The IR emitter of the sensor emits IR light onto the surface of the skin covering the muscle where it is reflected. When the user chews, the amount of light that is received by the IR receiver changes due to the activation of the muscle. The amount of light received can be used as a signal to determine when the user is chewing and likely eating.

This invention specially refers to a dental implant detector using constant current source and its detecting method, which falls within the scope of anti-interference, high-sensitivity dental implant detection. It is composed of the detecting sensor, the detecting sensor socket and the implant locator. The detecting sensor socket is connected with the detecting sensor and the implant locator at two ends respectively. The detecting sensor is built with a PCB base and detecting coils mounted on the layer and plane of the PCB base. The involute racetrack copper coil on the plane of the PCB base is smaller than that on the layer by 0.1 mm both laterally and longitudinally. The implant locator is built mainly with a CPU with power supply, a constant voltage module, a status display control module and a frequency conversion module. The detector, highly sensitive, easy to operate and very accurate for location, has solved the problems like time-consuming, inaccuracy and slowness of traditional detection method. With it, the dentists are able to find the dental implant quickly and accurately before the operation, which helps reduce incidence of medical accidents.

The invention relates to a system for detecting the relative movement of body parts, the system having at least two subsystems, i.e. a first subsystem and a second subsystem, wherein the first subsystem is designed to be fastened to a first body part, for example the upper jaw, or a body region rigidly connected to the upper jaw, such as the skull, and the second subsystem is designed to be fastened to a second body part, for example the lower jaw, wherein the first body part and the second body part are movable relative to each other, and wherein the system comprises a movement sensor system and a calibration sensor system, wherein the movement sensor system is designed to detect the relative movement or relative positions of the first body part and the second body part across a movement range, for example by generating data from which the movement trajectory or course of the relative movement of the first body part and of the second body part can be obtained or is obtained, and the calibration sensor system is designed to determine the relative position of the first body part relative to the second body part if (for example only if and/or always if) the first body part and the second body part are arranged relative to each other, preferably close to each other, in a calibration region.

Provided are an ultrasound diagnostic apparatus and a control method for an ultrasound diagnostic apparatus capable of accurately evaluating dysphagia. The ultrasound diagnostic apparatus includes: an ultrasound probe; an image formation unit that acquires an ultrasound image of a pharyngeal part of a subject in accordance with an image formation condition by transmitting and receiving an ultrasound beam using the ultrasound probe; a chewing information acquisition unit that acquires chewing information during chewing of the subject; an image formation condition adjustment unit that adjusts the image formation condition on the basis of the chewing information acquired by the chewing information acquisition unit; and a swallowing evaluation unit that evaluates swallowing of the subject, on the basis of the ultrasound image acquired by the image formation unit in accordance with the image formation condition adjusted by the image formation condition adjustment unit.

The present disclosure is directed to methods and apparatus for monitoring bone characteristics for various conditions such as osteoporosis and/or periodontitis. In various embodiments, a dental hygiene appliance (100) may include: a handle (102) adapted to be held by a user; a tool (106) secured to the handle to perform a dental hygiene-related task; emitter(s) (114A, 116, 360A) mounted on the dental hygiene appliance to emit wave(s) (252, 362) towards a mandible (250, 350) of the user; sensor(s) (114B, 116, 360B) mounted on the dental hygiene appliance to detect wave(s) (254, 364) propagating away from the mandible, wherein the detected wave(s) originate from or are caused by the emitted wave(s); and a controller (108) communicatively coupled with the emitter(s) and the sensor(s). The controller may: receive, from the sensor(s), signal(s) indicative of the detected waves; and determine, based on the signal(s), bone characteristic(s) of the user.

The invention relates to a method for registering non-radiographic virtual models of a mandibular arch and a maxillary arch of an individual with a non-radiographic digital model of the face of said individual, comprising: fastening a mandibular marker rigidly on the mandibular arch of the individual, said mandibular marker defining a first frame of reference, providing a non-radiographic virtual model of the mandibular arch and a non-radiographic virtual model of the maxillary arch, digitising at least one portion of the surface of the teeth or a prosthetic device integral with said arch and at least one rigid portion of said marker by means of an intra or extra-oral camera, so as to produce a digital recording of said portions of the mandibular arch and the marker in a same second frame of reference, from said recording and the virtual models of the mandibular arch and the mandibular marker, matching the digital model of the mandibular marker with the marker, and the virtual model of the mandibular arch with said arch, and localizing the virtual model of the mandibular arch in the first frame of reference, acquiring a non-radiographic digital model of the face of the patient, and localizing the digital model of the face in the first frame of reference, so as to register the virtual models of the maxillary and mandibular arches with said digital model of the face.