Abstract: A dental retractor tool and method for retracting the tongue and/or cheek away from the teeth in an oral cavity is provided. The dental retractor has a shape and configuration that allows for retraction of both the tongue and cheek simultaneously while allowing a dental professional to maintain ergonomically improved posture. The dental retractor can include a neck having a U-shaped bend adapted to fit around a distal portion of a patient's tooth. The dental retractor can be located opposite another dental tool, such as a dental examination mirror, to eliminate the need for excessive instruments during a dental procedure.

Abstract: A tongue guard and a method for using the tongue guard, in particular for dental procedures, is described.

Abstract: A sheet of material having a central body portion with attached wings capable of folding towards each other on either side. The wings of the bite block fold toward each other along fold lines adjacent the central body portion and provide a structure for biting down upon for propping the mouth of a patient open during a dental procedure. A mirrored surface may be placed on the central body portion for improving visibility in the mouth. In a unilateral bite block embodiment, the unilateral bite block is placed in only one side of the mouth. In another quadrant embodiment a bite extension extends out of an opposing side of the patent's mouth and facilitates holding the patient's mouth open. The bite block may be made inexpensively and is disposable.

Abstract: Provided herein is a retraction device for retracting soft tissue from the dental surfaces in the oral cavity of a patient. The retraction device is comprised of a topology conformable structure, where the topology conformable structure is adaptable to be delivered to the oral cavity in a constrained shape. The device can then undergo a conformation change in the oral cavity, where the device transforms into its unconstrained shape. The unconstrained shape of the device creates a useable working field in the oral cavity. The useable working field can provide increased accessibility to and/or visibility within the oral cavity. Also provided herein are methods for using the device and kits.

Abstract: An airway positioning device facilitates the maintenance of a patent airway by correctly positioning a patient's head during anesthesia. A flat base supports a supine patient's head. A pair of rails slope downward from a first end of the base to a second end of the base. A track mounts with at least one of the rails. At least one adjustable support arm movably mounts with the track via a locking coupling device at an end of the arm distal to the patient's head. A patient engaging member mounted with an end of the arm proximal to the patient's head supports the patient's head in a desired position during an operation or procedure.

Abstract: The cheek pocket anchor, formed of a resilient filament, fits within a user's cheek pouch. The anchor dynamically spans a user's inter-occlusal space and lip opening as a user's jaws open and close. The anchor can be formed of inter-connected, adjustable loops to enable user adjustment of its whole span. It can stabilize a work piece, such as an airway, in a user's mouth. The cheek path airway fits a path between a user's lips and through the user's cheek pouch and rear-jaw gap, avoiding the user's bite. It provides supplemental air to a user's rear-mouth cavity independently of a user's nasal airways while a user's lips remain closed. It can be used in combination with mandibular jaw-control and tongue-control devices whereby the combination mitigates breathing restrictions in a user's nasal and throat airways. It can be manufactured in-line and folded by a user to fit the user's cheek pathway.

Abstract: A dental fulcrum composed of soft material, such as foam, containing a slit for the insertion of incisors, and used as a pivot for scaling, or other treating, teeth by an oral hygienist or dentist. The dental fulcrum protects the fingers of an oral hygienist or dentist from calluses, or loss of sensitivity over time, while at the same time providing friction to reduce the risk of injury caused by fingers slipping on wet incisors. The device may be disposable or reusable, depending on the material used. Foam provides the additional benefit of absorbing saliva to further reduce the risk of slippage.

Abstract: A dental retractor made of a shape memory material to be easily bended and restored to an initial shape under predetermined conditions is provided. The dental retractor includes a retraction portion made of nitinol or alloy including nitinol to be bendable and to have shape memory characteristics, and configured to hold gingival tissue by being supported by a tooth; a support portion connected to one side of the retraction portion to support the retraction portion; and a handle portion connected to the support part. Since the dental retractor is easily bent and variously deformed as necessary, convenience of a surgery may be increased. In addition, since the dental retractor is restored to the initial shape under the predetermined conditions after the surgery, convenience is increased.

Abstract: A dental apparatus for retracting the cheeks and lips of a patient and illuminating the oral cavity of a patient is provided. The dental apparatus includes LEDs mounted on the cheek retractors. The apparatus allows a dentist to illuminate the interior of the oral cavity without needing additional equipment that hinders access to the oral cavity.

Abstract: The oral retractor is provided for retracting at least a portion of a patient's mouth. The oral retractor is formed from single, continuous closed-loop strand of stainless steel wire. The oral retractor includes a superior lip-engaging portion for retracting the patient's upper lip away from the upper teeth and gums, and an inferior lip-engaging portion for retracting the patient's lower lip away from the patient's lower teeth and gums. Bilateral arcuate cheek-engaging portions extend posteriorly from the lip-engaging portions for retracting the patient's cheeks away from the teeth and gums. The lip-engaging portions are formed from linear portions defining tented arches that extend anteriorly, and the superior lip-engaging portion may be canted upward, while the inferior lip-engaging portion may be canted downward. The cheek-engaging portions may be substantially parabolic. The retractor may be substantially symmetrical about planes bisecting the retractor vertically and horizontally.

Abstract: A combination refractor includes an operational unit, a neck region and a handle region. The operational unit further includes a tongue retractor and a flap retractor. The tongue retractor may be concave to provide for a natural area to encapsulate the tongue. The tongue and flap refractors may also be provided as part of a continuous planar extension of the operational unit or may be disposed on different planes. The flap retractor may be formed of a tapered extended edge or tab, which can be made in various lengths and include a beveled edge. A suction mechanism may be added for eliminating fluids. The neck region may contain an S-shaped bend or lateral bends for better operative functionality and ergonomics. The proximal end of the handle region, opposite the operational unit, may further include any useful apparatus, such as a periosteal elevator or periosteal retractor.

Abstract: A sheet of material having a central body portion with attached wings capable of folding towards each other on either side. The wings of the bite block fold toward each other along fold lines adjacent the central body portion and provide a structure for biting down upon for propping the mouth of a patient open during a dental procedure. A mirrored surface may be placed on the central body portion for improving visibility in the mouth. The bite block also holds or retracts the tongue and cheeks away from a work area in the mouth. The wings protect the cheeks as well as provide improved visibility within the mouth. Additionally, moisture control within the mouth is improved. The bite block may be made inexpensively and is disposable.

Abstract: In certain embodiments, an apparatus for treating a breathing condition includes an oral appliance, a mask, and a tensioning device. The oral appliance is configured to receive at least some of a wearer's teeth and a mask. The mask is configured to deliver gas to the wearer. The mask includes a chamber configured to cover the wearer's mouth. The chamber is at least partially enclosed by an interior of the mask. The tensioning device couples the mask to the oral appliance and includes a flexible tension element at least partially disposed between the oral appliance and the mask and within the chamber. The flexible tension element is configured to apply a tensile force between the mask and the oral appliance.

Abstract: An apparatus for use in treating a breathing condition includes a first dental arch, a second dental arch, two bodies coupled to the first dental arch, and two receivers coupled to the second dental arch. The first dental arch is configured to receive at least some of a wearer's teeth. The second dental arch is configured to receive at least some of a wearer's teeth. Each body includes a front stop, a rear stop, a threaded member, and a hook. The threaded member is configured to be coupled between the front stop and rear stop of the body and configured to rotate relative to the body. The hook comprises a threaded passage configured to engage the threaded member, and an arm configured to engage a second dental arch. The hook is configured to travel between the front stop and rear stop of the body in response to rotational adjustment of the threaded member to adjust the lower dental arch relative to the upper dental arch.

Abstract: An intra-oral device used for people that snore or have sleep apnea is designed to move a user's lower jaw forward relative to the user's immovable upper jaw and to prevent the user's mouth from inadvertently opening while sleeping. The device includes upper and lower appliances fitted to the user's respective upper and lower dental arches. The lower appliance possesses a partially embedded bracket. An adjustment element is integrated into the upper portion of the bracket. With the user's mouth closed and the upper and lower appliances positioned over the user's respective dental arches, the adjustment element is moved rearward by worm action into load bearing contact against the forward facing immovable vertical contact wall of the upper appliance. This action moves the lower appliance forward, and thus, the user's lower jaw with its anatomically attached tongue are also moved forward relative to the mouth which in turn opens the user's airway.

Abstract: Various embodiments of the present invention are directed to a tongue retractor and fluid/particle barrier for use in medical procedures performed in and around a patient's mouth. In one embodiment of the present invention, a kidney-shaped tongue retractor and fluid/particle barrier, with an insertion end and a handling end, is inserted into the mouth of a patient. The insertion end of the tongue retractor and fluid/particle barrier is specifically positioned to isolate and protect the patient's tongue from the medical procedure and to protect the patient from inhaling or swallowing fluids and scattered debris.

Abstract: A combination retractor includes an operational unit, a neck region and a handle region. The operational unit further includes a tongue retractor and a flap retractor. The tongue retractor may be concave to provide for a natural area to encapsulate the tongue. The tongue and flap retractors may also be provided as part of a continuous planar extension of the operational unit or may be disposed on different planes. The flap retractor may be formed of a tapered extended edge or tab, which can be made in various lengths and include a beveled edge. A suction mechanism may be added for eliminating fluids. The neck region may contain an S-shaped bend or lateral bends for better operative functionality and ergonomics. The proximal end of the handle region, opposite the operational unit, may further include any useful apparatus, such as a periosteal elevator or periosteal retractor.

Abstract: An intraoral device includes a one-piece, flexible, injection molded body made of a single homogeneous material. The body includes upper front and rear flaps, and lower front and rear flaps. Upper edges of the front flaps and lower edges of the lower flaps are sealed by respective upper and lower parts of a patient's mouth to form upper and lower evacuation channels when the body is disposed within the patient's mouth. Evacuation holes in the flaps are in communication with the evacuation channels. A connection section is in communication with the evacuation channels and is configured to extend outside of the patient's mouth to connect with a vacuum source for evacuating fluid from the patient's mouth through the evacuation holes and the evacuation channels.

Abstract: An intra-oral device includes a tongue shield aspirator, a bite member, a bite grip, and an evacuation tube. The tongue shield aspirator may include a tongue retractor portion and a cheek retractor portion, and may be an open, unitary, and/or flexible component made of position-memory material. The bite member includes a conduit which receives the tongue shield aspirator through one end and the evacuation tube through the opposite end. The free end of the evacuation tube is connectable directly to a HVE valve to aspirate fluid/debris from the mouth. The device may be positioned in the mouth by bending the distal (free) end of the tongue shield aspirator, inserting the bite member into the mouth first, followed by the tongue shield aspirator as the device is moved towards the patient's cheek, releasing the free end of the tongue shield aspirator, and having the patient bite down on the bite member.

Abstract: A dental tool may include a head that may include a working portion and a neck. The neck may include a first end and a second end, and the working portion may extend from the first end. A handle may include a clamp and a socket. The socket may be configured to receive the second end of the neck. The second end may pivot within the socket to move the working portion and the neck relative to the handle. The clamp is may be adapted to selectively fix the second end relative to the handle.

Abstract: A combination bite block, tongue elevator/retractor and airway for establishing and maintaining an open airway while preventing emergence clenching and the resulting dental and soft tissue damage associated with emergence clenching in procedures where anesthesia and/or sedation are used, or when the patient is not in control of their own airway, regardless of the cause. The inventive subject matter includes a tongue elevator/retractor component in both right and left conformations; and a bite block component. The bite block component is a wedge shaped, compressible component that is inserted between the upper and lower molars on either the right or left side of the mouth. The tongue elevator component is comprised by a flat portion of that is inserted into the side of the bite block, and an optional curved portion that retracts the tongue off of the posterior pharynx when in place.

Abstract: A mandibular manipulator instrument used as a standalone tool or with associated mouthpiece that includes two interlocking laterally sliding frames which interlock to create a movable upper and a lower incisor pull driven by a pair of pinion shafts and shaped for receiving a patient's central incisor teeth. A screw thread is used to provide a precise lateral motion for the sagittal measurement. The mouthpiece is constructed of resilient rubber. The mandibular manipulator may be positioned and held in a resilient flexible mouthpiece by the two pinions protruding through acoustically tight apertures respective to each pinion's position. The manipulator can be used for other application in an embodiment without the mouthpiece and/or in combination with a bite registration shape that is part of the manipulator frame.

Abstract: An upper tray adapted to receive a wearer's maxillary teeth. A lower tray adapted to receive the wearer's mandibular teeth. A first upper ridge is carried on a maxillary occlusal surface of the upper tray. A second upper ridge is carried on the maxillary occlusal surface of the upper tray posterior to and spaced from the first upper ridge. A lower ridge is carried on a mandibular occlusal surface of the lower tray received between the first upper ridge and the second upper ridge. The lower tray is movable to a forward position where the lower ridge abuts the first upper ridge to limit forward movement of the lower tray in relation to the upper tray, and the lower tray is movable to a rearward position where the lower ridge abuts the second upper ridge to limit rearward movement of the lower tray in relation to the upper tray.

Abstract: A sheet of material having a central body portion with attached wings capable of folding towards each other on either side. The wings of the bite block fold toward each other along fold lines adjacent the central body portion and provide a structure for biting down upon for propping the mouth of a patient open during a dental procedure. A mirrored surface may be placed on the central body portion for improving visibility in the mouth. In a unilateral bite block embodiment, the unilateral bite block is placed in only one side of the mouth. The bite block may be made inexpensively and is disposable.

Abstract: A breathing device for intra-oral use particularly useful to increase the air flow through the nares, the nasal passages, pharynx, and larynx of a user includes a generally U-shaped member curved in an arch to conform to a user's upper dentition, edentulous maxillary ridges, or any prosthetic device. The U-shaped member is provided with at least one wall having a depth slightly greater than the vertical dimension of a user's upper dentition and a receptacle to receive the upper dentition, edentulous ridge, or prosthetic device.

Abstract: An integrated oral appliance treats breathing obstruction and restriction in the upper airway during sleep with a cantilevered tongue restraint coupled through spring-force to a rigid bracket that is attached to a tray shaped to engage dentition.

Abstract: A jaw relaxation exercise appliance and method of use to relieve the symptoms of the temporal mandibular joint (TMJ), such as limited opening and jaw pain, that is inexpensive and easy to use. The appliance may be form fit to each user and is designed to be a partial coverage appliance with a bottom guide plane for ease of movement to achieve optimal jaw position. It is also intended to be utilized in conjunction with an exercise. The appliance should be used for short intervals during the day. Patients are directed to slowly move or slide their lower jaw forward and then slowly slide the lower jaw rearward along the plane to a point of comfort.

Abstract: A cosmetic prosthesis designed to provide non-invasive, removable enhancement of upper and lower lip, being intended to contour and push the facial skin around the mouth and jaw outward, reducing the appearance of wrinkles or aging lines.

Abstract: Aa dental appliance includes an attachment mechanism suited to attach the appliance on the teeth of a patient's upper jaw. The appliance includes a constraining mechanism linked to the attachment mechanism, where the constraining mechanism is suited to limit the movement of a central zone of the tongue and allow the anterior and lateral edges of the patient's tongue to perform movements necessary for speech and swallowing.

Abstract: An intra-oral device includes a tongue shield aspirator, a bite member, a bite grip, and an evacuation tube. The tongue shield aspirator may include a tongue retractor portion and a cheek retractor portion, and may be an open, unitary, and/or flexible component made of position-memory material. The bite member includes a conduit which receives the tongue shield aspirator through one end and the evacuation tube through the opposite end. The free end of the evacuation tube is connectable directly to a HVE valve to aspirate fluid/debris from the mouth. The device may be positioned in the mouth by bending the distal (free) end of the tongue shield aspirator, inserting the bite member into the mouth first, followed by the tongue shield aspirator as the device is moved towards the patient's cheek, releasing the free end of the tongue shield aspirator, and having the patient bite down on the bite member.

Abstract: The present invention relates to a light guide for a lamp for dentistry procedures. The light guide provides an optical channel between a light source and a dental substrate. The light guide may be a one-patient use light guide including a recording medium to record the time used. The light guide further provides protection for a patient's soft tissues during treatment.

Abstract: Described is a mandibular manipulator instrument as a standalone tool or with associated mouthpiece that includes two interlocking laterally sliding frames comprising a movable upper and a lower incisor pull, shaped for receiving a patient's central incisor teeth and a pair of pinion shafts for driving the upper and lower incisor pulls. A screw thread is used to provide a precise lateral motion for the sagittal measurement. The mouthpiece is constructed of resilient rubber. The manipulator may be positioned and held in a resilient flexible mouthpiece by means of the two pinions protruding through acoustically tight apertures respective to each pinion's position. The manipulator can be used for other application in an embodiment without the mouthpiece and/or in combination with a bite registration shape that is part of the manipulator frame.

Abstract: An multipurpose mouthpiece assembly is disclosed for use in diagnosing and treating a variety of termporomandibular disorders. The assembly can include both a maxillary appliance and a mandibular appliance that are optionally configurable to function as a discluder, for diagnosing and treating wearers suffering from bruxism, tension headaches, and common migraine headaches, by preventing contact between opposing canine and posterior teeth and thereby reducing the intensity of clenching of the wearer's temporalis muscles. Alternatively, the two appliances are optionally configurable for use as a mandibular advancement device, for diagnosing and treating wearers suffering from obstructive sleep apnea by preventing excessive retrusion of the wearer's mandible. Alternatively, either the maxillary appliance or the mandibular appliance can be used individually to protect the teeth from nocturnal asymptomatic teeth grinding.

Abstract: A combination bite block, tongue depressor/retractor and airway for establishing and maintaining an open airway while preventing emergence clenching and the resulting dental and soft tissue damage associated with emergence clenching in procedures where anesthesia and/or sedation are used, or when the patient is not in control of their own airway, regardless of the cause. The inventive subject matter includes a tongue depressor/retractor component in both right and left conformations; and a bite block component. The bite block component is a wedge shaped, compressible component that is inserted between the upper and lower molars on either the right or left side of the mouth. The tongue depressor component is comprised by a flat portion of that is inserted into the side of the bite block, and an optional curved portion that retracts the tongue off of the posterior pharynx when in place.

Abstract: Various embodiments of the present invention are directed to a tongue retractor and fluid/particle barrier for use in medical procedures performed in and around a patient's mouth. In one embodiment of the present invention, a kidney-shaped tongue retractor and fluid/particle barrier, with an insertion end and a handling end, is inserted into the mouth of a patient. The insertion end of the tongue retractor and fluid/particle barrier is specifically positioned to isolate and protect the patient's tongue from the medical procedure and to protect the patient from inhaling or swallowing fluids and scattered debris.

Abstract: A sheet of material having a central body portion with attached wings capable of folding towards each other on either side. The wings of the bite block fold toward each other along fold lines adjacent the central body portion and provide a structure for biting down upon for propping the mouth of a patient open during a dental procedure. A mirrored surface may be placed on the central body portion for improving visibility in the mouth. In a unilateral bite block embodiment, the unilateral bite block is placed in only one side of the mouth. The bite block may be made inexpensively and is disposable.

Abstract: A dental device includes a generally C-shaped member with upper and lower arms and a central spring arm extending therebetween. Rubber cradle members on the upper and lower arms comfortably engage the top and bottom teeth, while the spring arm urges the arm members apart. In a preferred embodiment, the rubber cradle members are fitted onto distal end positions of the upper and lower arms and are locked in place by serrated members on the distal end portions, thereby preventing slipping or accidental removal of the rubber cradles. Alternatively, the rubber cradle members may be permanently applied to the distal end portions by a dipping and coating process. When inserted and properly positioned between the upper and lower teeth, the device holds the mouth open and permits full access and movement of dental tools within the mouth in the performance of basic dental procedures, while eliminating strain on the patient's jaw muscles.

Abstract: The invention is a device for use as a prop to hold the mouth open which consists essentially of a bite block with an elongated portion that is deflected and to provide a physiologically shaped elongated portion extends along the buccal border of the tongue to form a tongue depressor and light reflector as the bite block is held in position. The retaining arm, tongue guiding hole and the flange retain the patient's tongue in the bottom cavity of the patient's mouth.

Abstract: A combination retractor includes an operational unit, a neck region and a handle region. The operational unit further includes a tongue retractor and a flap retractor. The tongue retractor may be concave to provide for a natural area to encapsulate the tongue. The tongue and flap retractors may also be provided as part of a continuous planar extension of the operational unit or may be disposed on different planes. The flap retractor may be formed of a tapered extended edge or tab, which can be made in various lengths and include a beveled edge. A suction mechanism may be added for eliminating fluids. The neck region may contain an S-shaped bend or lateral bends for better operative functionality and ergonomics. The proximal end of the handle region, opposite the operational unit, may further include any useful apparatus, such as a periosteal elevator or periosteal retractor.

Abstract: An apparatus for maintaining a dry field during dental procedures includes a U-shaped tongue shield for holding the patient's tongue in a retracted position. Cheek distention arms extend laterally outward and forward from the tongue shield to distend the cheek away from the teeth. Lip retractors extend from the cheek distention arms in an arcuate shape above and below the cheek distention arms. Webbing extends between the lip retractors and cheek distention arms to support the soft tissue within the patient's mouth distal to the orbicularis oris muscle.

Abstract: A dental apparatus for retracting the cheeks and lips of a patient and illuminating the oral cavity of a patient is provided. The dental apparatus includes LEDs mounted on the cheek retractors. The apparatus allows a dentist to illuminate the interior of the oral cavity without needing additional equipment that hinders access to the oral cavity.

Abstract: Disclosed therein is a lip retractor for intraoral photography. The lip retractor (1) includes: a rectangular lip retracting member (3); and a handle (2) formed on one side of the lip retracting member (3) and having a slope of a predetermined degree, the handle (2) including an air path (4) and an air injection hole (5) formed on the inside thereof to thereby inject air to a miller during intraoral photography. The lip retractor for intraoral photography can more easily and conveniently retract the lips with one hand during intraoral photography and prevent frost formed on a miller by the steam of breath to thereby obtain a clearer image.

Abstract: A device for positioning a patient in a fixed location comprising: a) a locator attachable to a patient and having a registration portion for registration with a portion of a patient's body, and b) means for transmitting information concerning the position of the portion of the patient to an information receiving means, the means being rigidly connected with the locator; a system for positioning a patient in a fixed location comprising the above device in combination with means for receiving said information concerning the position of said portion of said patient; and a method for locating a portion of a patient in a predetermined fixed position comprising: a) affixing to a patient the above device by registering the registration portion of the device with the portion of the patient, b) transmitting information concerning the position of the portion of the patient from the device to an information receiving means, and c) locating the portion of the patient in the predetermined fixed position based o

Abstract: A sheet of material having a central body portion with attached wings capable of folding towards each other on either side. The wings of the bite block fold toward each other along fold lines adjacent the central body portion and provide a structure for biting down upon for propping the mouth of a patient open during a dental procedure. A mirrored surface may be placed on the central body portion for improving visibility in the mouth. The bite block also holds or retracts the tongue and cheeks away from a work area in the mouth. The wings protect the cheeks as well as provide improved visibility within the mouth. Additionally, moisture control within the mouth is improved. The bite block may be made inexpensively and is disposable.

Abstract: The present invention is related to devices utilized for retraction of the lips, tongue and oral cavity during dental procedures. In particular, the invention relates to a flexible or semi-flexible oral device used to comfortably and quickly retract the patient's lips to properly expose the patient's teeth and gums for dental procedures.

Abstract: The present invention provides devices for use with a patient under anesthesia and associated methods. Various embodiments of the present invention include a device for establishing and maintaining a patient's head and/or jaw in a particular position, including the sniffing position. Embodiments also include a method for positioning a patient comprising the use of a device of the present invention, wherein the device may substantially maintain a patient in a desired position.

Abstract: A dental retractor for employment during dental and oral surgery procedures. The device employs a reflective surface at a distal end which is conventionally used adjacent to the surgery site in the patient's mouth. The reflective surface eliminates the need for additional mirrors and such in the patient's mouth. Additionally provided is a proximal end that will adapted for ergonomic positioning in the hand of the user.

Abstract: The present invention relates to methods and devices for positioning a patient's head prior to radiographic analysis for orthodontic and dental applications. According to certain embodiments of the invention, such methods comprise disposing a device in the patient's mouth and having the patient bite down on the device. The device used in such methods includes a planar radiolucent material having a mouthpiece in the center portion thereof, which is adjacent to a first concave contour that approximates the patient's left cheek and a second concave contour that approximates the patient's right cheek. The device used in such methods further comprises an outer horizontal edge that extends outwards from the patient's mouth, which is aligned with the patient's occlusal plane. According to certain embodiments, such methods further comprise taking measurements for dental or orthodontic applications relative to the patient's occlusal plane.

Abstract: A dental tray and system is disclosed. The dental tray may include a frame, an arch bridging two halves of the frame, and a bite block projecting upward from the arch to contact a palate. The system may further include a suction system connected to the frame for suctioning liquid away from an area being worked on. The dental tray may be integral or split in two halves.

Abstract: An oral appliance for treating sleep apnea and bruxism is formed of a maxillary tray and a mandibular tray. The maxillary tray carries a maxillary bite pad projecting downwardly toward an opposed mandibular occlusal surface. The mandibular tray carries a mandibular bite pad projecting upwardly toward an opposed maxillary occlusal surface. The maxillary bite pad is posterior to the mandibular bite pad such that upon sufficient relative posterior movement of the mandibular tray, the maxillary bite pad engages the mandibular bite pad and limits posterior movement of the mandibular tray. At least one surface, chosen from the anterior face of the maxillary bite pad and the posterior face of the mandibular bite pad, defines a guide plane disposed at an upward and forward slant. The maxillary bite pad and the mandibular bite pad are engageable at the guide plane for advancing the mandibular tray along the guide plane upon vertical closure between the trays.