A dental treatment apparatus is a dental treatment apparatus that energizes a dental treatment site such as a root canal with a high-frequency current. Included are a holder that holds an electrode placed at the dental treatment site, a power supply that energizes the electrode with the high-frequency current, and control circuitry that causes, during the energization operation, the power supply to provide stop period where the energization of the electrode with the high-frequency current is stopped between single energization period and next single energization period.

Embodiments of the present invention provide an oral device. According to one embodiment of the present invention, a mouthpiece suitable to detachably engage teeth of an upper jaw is provided. The mouthpiece comprises an adhesive layer configured to attach a hermetically sealed chamber to the mouthpiece. The hermitically sealed chamber fits within a concave space created by the mouthpiece. The hermitically sealed chamber comprises two layers and embedded between those two layers are a pressure sensor, a microphone, an optical sensor, a temperature sensor, a communications module, a storage enclosure, and a biosensor. Each of the pressure sensor, the microphone, the optical sensor, the temperature sensor, the communications module, the storage enclosure, and the biosensor are operably connected within the hermetically sealed chamber.

This disclosure relates to wireless electronics designed for use within the oral cavity to measure biological or chemical variables, including pH or analyte concentrations, and transmit the measurements. More particularly, the disclosure relates to a wearable intraoral sensor comprising sensing electronics arranged within a flexible circuit mounted onto a molar band, a wireless transmission unit coupled to the sensing electronics and configured to wirelessly transmit electrical data signals to a receiver outside of the oral cavity, and a power source operably coupled to the sensing electronics and wireless transmission unit. The wearable intraoral sensor can be installed around a tooth and continually measure and wirelessly transmit measurement data for extended periods of time without user action.

This disclosure relates to wireless electronics designed for use within the oral cavity to measure biological or chemical variables, including pH or analyte concentrations, and transmit the measurements. More particularly, the disclosure relates to a wearable intraoral sensor comprising sensing electronics arranged within a flexible circuit mounted onto a molar band, a wireless transmission unit coupled to the sensing electronics and configured to wirelessly transmit electrical data signals to a receiver outside of the oral cavity, and a power source operably coupled to the sensing electronics and wireless transmission unit. The wearable intraoral sensor can be installed around a tooth and continually measure and wirelessly transmit measurement data for extended periods of time without user action.

Inventions herein include at least mostly optically clear orthodontic braces and feet orthotics (collectively referred to as “appliances”) with backscatter based sensors. These two categories of appliances share a common property requiring that the given appliance must be correctly custom manufactured to fit a patient's own particular geometry and dimensions of their teeth and/or feet in order to perform as intended. Incorporating such appliances with backscatter based sensors enables simple, easy, fast, efficient, and cost effective measurements, in real-time or near real-time, of stresses, forces, structural changes, and/or the like in the given appliance; which in turn can aid in determining if adjustments or re-manufacture of the appliance may be needed or desired; and/or wherein such measurements may aid in evaluating performance of the given appliance. In some embodiments, such measurements may also be taken remotely away from a practitioner; and then communicated to a remotely located practitioner.

Inventions herein include at least mostly optically clear orthodontic braces and feet orthotics (collectively referred to as “appliances”) with backscatter based sensors. These two categories of appliances share a common property requiring that the given appliance must be correctly custom manufactured to fit a patient's own particular geometry and dimensions of their teeth and/or feet in order to perform as intended. Incorporating such appliances with backscatter based sensors enables simple, easy, fast, efficient, and cost effective measurements, in real-time or near real-time, of stresses, forces, structural changes, and/or the like in the given appliance; which in turn can aid in determining if adjustments or re-manufacture of the appliance may be needed or desired; and/or wherein such measurements may aid in evaluating performance of the given appliance. In some embodiments, such measurements may also be taken remotely away from a practitioner; and then communicated to a remotely located practitioner.

The present invention relates to an apparatus and a method for determining impedance (AC resistance) on a tooth. The impedance is determined by measuring the voltage at a given current intensity or by measuring the current intensity at a given voltage. Determining the impedance on a tooth is used for diagnosing tooth decay.

The present invention relates to an apparatus and a method for determining impedance (AC resistance) on a tooth. The impedance is determined by measuring the voltage at a given current intensity or by measuring the current intensity at a given voltage. Determining the impedance on a tooth is used for diagnosing tooth decay.

Methods of sensing a dental region are disclosed. In one arrangement, a sensor element is used to apply a heating pulse to the dental region. Chemical or structural information about the dental region is determined by measuring a response of the sensor element during the heating pulse. The response is dependent on heat transfer characteristics of the dental region.

The invention discloses a measurement element (100, 500, 600, 700) for an oral care device. The measurement element comprises at least one elongate ridge element (102) for engaging an interproximal region or adjacent teeth within an oral cavity, and at least a first sensing region (104) for acquiring data from gingival tissue within the oral cavity. The invention also discloses an oral care device (10), an attachment (1000) for an oral care device.