Mandibular repositioning devices have a maxillary piece that has a tooth covering with a driver flange protruding laterally outward on a right side proximate a backmost teeth mold and/or on a left side proximate the backmost teeth mold and have a mandibular piece that has a tooth covering with a protrusive flange extending cranially therefrom. Each driver flange has an anterior side with a convex curvature and each protrusive flange has a posterior side with a concave-to-convex curvature from its base toward its most cranial point. The convex portion of the concave-to convex curvature is positioned to engage the convex curvature of the driver flange in a rest position. Downward movement of the mandibular piece moves the convex portion of the posterior side of the protrusive flange along the convex curvature of the driver flange, thereby moving a user's mandible forward.

Mandibular lingual repositioning devices include a mandibular piece having a first teeth covering and a housing proximate a left molar portion and a right molar portion that each have a first drive and a protrusive flange extending cranially and a stimulator protrusion extending toward the tongue each extend from the housing, and include a maxillary piece having a second teeth covering and a housing proximate each of a left molar portion and a right molar portion that each have a second driver. Each housing encloses a power source electrically connected to a motor and to an on-board circuit board, and has its respective driver operatively connected to a respective motor. Each housing of the mandibular piece also has an electrode of a stimulator electrically connected to its power source. Each first driver is operatively engaged with the maxillary piece and each second driver is operatively engaged with a protrusive flange.

Mandibular repositioning devices have a mandibular piece having a first teeth covering and having a housing proximate each of a left molar portion and a right molar portion, a protrusive flange extending cranially from each housing, and a maxillary piece having a second teeth covering and having a housing proximate each of a left molar portion and a right molar portion. Each housing encloses a power source electrically connected an on-board circuit board and the housings of the maxillary piece further have the power source electrically connected to a motor operatively connected to a drive for anterior and posterior movements of the mandibular piece. The maxillary piece sits on the mandibular piece with the driver operatively engaged with the protrusive flange. The protrusive flange has a concavely-shaped anterior surface mated to a convexly-shaped head of the driver shaped to match the concavely-shaped anterior surface of the protrusive flange.

Lingual repositioning devices have a mandibular piece having a teeth covering and a first housing proximate either a left molar portion or a right molar portion of the teeth covering. The first housing includes a stimulator protrusion extending therefrom at a position to extend toward a tongue of a user and to contact a lingual muscle of the tongue or includes a sensor portion extending therefrom at a position to extend toward a tongue of a user and to be positioned under the tongue. The stimulator protrusion encloses a stimulator and the first housing encloses a power source electrically connected to a circuit board and electrically connected to an electrode of a stimulator. A second housing at the other of the left or right molar portions has a stimulator protrusion or a sensor portion. The first and second housings may be removably attachable to the teeth covering.

Maxillary devices and Mandibular devices each have a first housing connectable to a tooth of a user or connectable or integral with a teeth covering, wherein the housing encloses an on-board circuit board and a power source. The first housing of the maxillary devices has a tooth connecting portion, a palate housing portion and/or a buccal housing portion. The first housing of the mandibular devices has a tooth connecting portion and a sublingual portion. Each of the palate housing portion and the buccal housing portion enclose a stimulator having an electrode electrically connected to the on-board circuit board and the power source, and can enclose a sensor and/or a medicament dispenser. The sublingual portion encloses a sensor and a medicament dispenser each of which are in electrical communication with the microprocessor of the on-board circuit board.

An oral appliance for the treatment of sleep disorders, such as obstructive sleep apnea, in a user is presented. The oral appliance may include a mouthpiece configured to receive a user's dentition. The mouthpiece may include an oxygen sensor, a pressure sensor, an airflow sensor, an actigraphy sensor, a noise detector, and at least one stimulator for providing stimulation to a user's tongue in the event of decreased oxygen saturation levels, increased pressure applied to occlusal surfaces of the user's dentition, decreased actual airflow levels and/or increased noise levels. The mouthpiece may be provided with pharmaceutical compound reservoirs that deliver pharmaceutical compounds to the oral mucosa of the user, which compounds treat symptoms of sleep apnea. The mouthpiece may further include a microprocessor that receives data from the oxygen sensor, pressure sensor, airflow sensor, actigraphy sensor and noise detector, and activates the at least one stimulator and/or pharmaceutical compound reservoirs.

A bruxism mouth guard device is disclosed herein. The bruxism mouth guard device includes a mouth guard body portion with a channel formed therein for receiving one or more teeth of a user; one or more pressure sensing devices for sensing a grinding or clenching of the one or more teeth of the user; a vibration device for vibrating one or more portions of the mouth of the user; and a control device operatively coupled to the one or more pressure sensing devices and the vibration device, the control device activating the vibration device so as to vibrate the one or more portions of the mouth of the user when the one or more pressure sensing devices sense the grinding or clenching of the one or more teeth by the user. A bruxism mouth guard system including the device is also disclosed herein.

A method, user interface and system for detecting and monitoring development of a dental condition. In particular, detecting and monitoring such a development by comparing digital 3D representations of the patient's set of teeth recorded at a first and a second point in time. For example, determining tooth movement for at least one tooth between the first and second point in time based on derived distances.

Various examples of methods, systems, and apparatus are provided for monitoring using an improved mouth guard apparatus. In one example, a battery-free diagnostic mouth guard includes a biting force-voltage transducer comprising a piezoelectric film; a compact resonance tank comprising a wireless sensor; and a transmitting antenna for transmitting sensing data. A piezo-voltage from the biting force-voltage transducer can bias a varactor diode loaded on the wireless sensor whose response frequency is tuned due to a capacitance change of the varactor diode. In some implementations, an external processing equipment can wirelessly detect a frequency shift of the varactor diode integrated resonator. In another example, a method includes detecting a biting force via a biting force-voltage transducer; biasing a varactor diode with a voltage from the transducer; tuning a response frequency of a split ring resonator using a capacitance change of the varactor diode; and emitting sensing data at the response frequency.

An apparatus and method for detecting and reducing bruxism is described. The method includes the placement of a pressure resistive (or piezoelectric) sensor on the skin above the temporalis muscle in order to detect grinding of the teeth based on movement of the temporalis muscle. Alternatively, a pressure resistor could be used in the ear. The pressure resistive sensor could be made of carbon-impregnated polyolefin with spacers between a plurality of layers of the carbon-impregnated polyolefin. Once bruxism is detected, a patient is notified and uses bio-feedback to curtain the grinding of the teeth.