A mouth guard includes a pair of spaced-apart molar receiving members with an inner wall extending therebetween. The inner wall is configured for insertion between a user's lips and teeth. An outer wall is configured to confront an exterior surface of the user's lips. A conduit extends between the inner and outer walls and includes a passage formed therethrough. The passage extends through the inner wall between the molar receiving members and extends through the outer wall whereby a user may breathe or drink through the passage.

An athletic mouthguard with lung exercising variable, two-way airflow-restricting valve is disclosed. The mouthguard has a mouthpiece with a lower tooth bed and an upper tooth bed overlying the lower. Outer and an inner sidewall connects the beds. A channel passes between the lower and upper beds with a first end open within the inner sidewall and a second end open within the outer sidewall. Certain embodiments include a channel wall which separates the channel into multiple channels. A manifold in fluid communication with the channel terminates to a centralized aperture with a valve seat. A rotatable valve member in the valve seat has an aperture therethrough.

A mouthguard according to an embodiment of the present disclosure includes an occlusion portion that is configured to be disposed between and engaged by at least some of the upper teeth and at least some of the lower teeth of a wearer. The mouthguard further includes a protection portion coupled to the occlusion portion. The protection portion is configured to be disposed laterally and anteriorly relative to the upper teeth of the wearer. The protection portion includes an interior surface that is configured to face toward the teeth of the wearer. The protection portion further includes an exterior surface opposite the interior surface and configured to face away from the teeth of the wearer. At least a portion of the exterior surface is a textured surface.

The invention is directed to a mouth piece for cooling of oral tissue of a patient during chemotherapy treatment. The mouth piece includes a cooling medium contained within the top element and the bottom element and able to retain a cooling environment within the mouth sufficient to reduce capillary blood flow to the patient's mouth.

Mouthguard systems for dispensing a substance (e.g., dietary, nutritional, sports enhancement, herbal, medical prescription, over the counter pharmaceutical, etc.) into a user's mouth are contemplated. Mouthguard systems comprise a container and a mouthguard. Contemplated mouthguards comprise a housing sized and dimensioned to receive the container. Thus, users wearing contemplated mouthguards can have immediate access to a container filled with a desired substance in any setting (e.g., sports, medical, military, etc.).

The present disclosure describes a polymer mouthguard for protecting the teeth of a wearer. The mouthguard includes a lingual portion, a facial portion, and an occlusal portion connected with one another in the shape of an arch and together defining a trough for receiving the upper (maxillary) or lower (mandibular) teeth of a wearer. At least one, or both, of the facial portion and the occlusal portion have a shock absorbing lattice formed therein. The mouthguard can be produced as a single object by the process of additive manufacturing (e.g., stereolithography).

A mouthguard according to an embodiment of the present disclosure includes a teeth engagement portion having a medial surface. An anterior surface is coupled to the teeth engagement portion opposite the medial surface. A first breathing channel extends from the anterior surface to the medial surface. A second breathing channel extends from the anterior surface to the medial surface. A third breathing channel extends from the anterior surface to the medial surface. A first interior wall is disposed between the first breathing channel and the second breathing channel. The first interior wall is configured to be aligned with a first upper incisor of a wearer. A second interior wall is disposed between the second breathing channel and the third breathing channel. The second interior wall is configured to be aligned with a second upper incisor of the wearer.

A mouthguard according to an embodiment of the present disclosure includes a pair of spaced lateral bite wings, a conduit defining an air channel extending between forward portions of the lateral bite wings, and a lip shield member and/or a flange disposed around and extending radially outward with respect to a forward end of the conduit. The conduit is tapered inward from its forward end toward its rearward end, and defines an incisor engaging surface proximate the rearward end of the conduit, and a lip engaging surface between the incisor engaging surface and the forward end of the conduit.

In some embodiments, an oral device can include a curved frame, a first bite block, and a second bite block. The first bite block can be coupled to a first end of the curved frame and the second bite block can be coupled to a second end of the curved frame. A first wing coupled to the first bite block and a second wing coupled to the second bite block can be configured to corral a tongue of a user such that the tongue of the user is restrained from contacting a tooth engaging surface of the left bite block or the right bite block when the oral device is disposed in a mouth of the user. The oral device can be symmetrical about a plane including a portion of the frame, a portion of the first bite block, and a portion of the second bite block.

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.