1136 results about "Lower tooth" patented technology

An orthodontic trainer 1 for assisting the correction of the misalignment of teeth is disclosed. The trainer 1 comprises a base member 2 made of nylon having a generally U-shaped form corresponding to the outline of the jaw of a user and a teeth engaging member 5 that encases the base member 2. The base member 2 has an open frame structure with curved inner and outer elongate frame members 12, 10 interconnected at spaced intervals by transverse frame members 15. The trainer 1 includes a outer teeth repositioning formation in the form of an outer flange is positioned on the outer elongate frame member 10. The trainer 1 also includes an inner teeth repositioning formation on the inner elongate frame member 12. The continuous teething engaging member 5 that is made of silicone rubber or PVC comprises a web 40 and inner and outer flanges 44, 45 projecting up and down from both upper and lower faces of the web 40. These flanges 44, 45 and the web 40 define upper and lower channels within which the upper and lower teeth of the user can be received. The trainer 1 also includes teeth positioning formations on the teeth engaging member 5 projecting into the upper and lower channels for encouraging the correct positioning of the teeth of a user.

A method is presented for rapidly making and delivering directly to a consumer a full upper and / or lower denture on the basis of contemporaneous digital image information laser scanned from the person's oral cavity after all respective upper and / or lower teeth have been removed, the delivery of the denture occurring substantially contemporaneously with the creation of the contemporaneous digital image information and optionally including and based on archived digital image information laser scanned from the person's oral cavity before all respective upper and / or lower teeth have been removed and digitally stored. According to which this contemporaneous digital image information and archival digital image information of the oral cavity is converted, by means of what is called the rapid prototyping technique and thus with a processing step (20) and a combination of an optional laser scanning step (18) solely for archiving the oral cavity when upper and / or lower teeth are present and a repetition of the laser scanning step (18) at a subsequent time when upper and / or lower teeth have been removed, a pre-selected block of plastic is used in a processing step (26) at a remote rapid modeling facility for receiving and processing digital information to form the block of plastic or like material into a denture of which at least a part is formed to substantially perfectly fit in juxtaposed relationship to the corresponding gums of the consumer. At least, pre-selected outer or non-juxtaposing is selected for manufacture of the denture using an arbitrary archived digital image not derived from the consumer's oral cavity image but selected by the consumer for its style, cosmetic characteristics, for example, color of teeth, size and variety of teeth, and / or perceived suitability.

The invention is a removal plastic oral appliance which includes sensors for detecting the position of a patients tongue and mandible. Pressure sensors in the appliance itself detect tongue contact and pressure against the palate or the lower teeth against the upper teeth. The sensors are connected electronically to an electronic processor which interprets the information against one or more contra-indicated tongue or jaw positions or activities, and selects an appropriate response from a pre-selected range of responses. The electronic processor sends a signal to a stimulus electrode to cause the patient to stop the contra indicated tongue position, jaw position, or activity.

An apparatus and method define a fit a set of upper and lower teeth in a masticatory system of a patient by generating a computer representation of the masticatory system of the patient; and determining an occlusion from the computer representation of the masticatory system using one or more keys.

A dental oral appliance to reduce or eliminate snoring or obstructive sleep apnea and to open the airway for a sleeping patient. The appliance covers the inside (lingual) of the upper or lower teeth and has an open palate. Retention for the appliance is provided by an occlusal coverge of the upper or lower teeth. A raised incisor ramp that extends from the incisal tip of the incisors toward the lingual, or posterior ramps, separate the posterior teeth to open the airway. A transpalatal bar, which extends from the inside (lingual) of the right molars to the inside of the left molars, inhibits the upward and backward movement of the tongue. An anterior tongue restrainer which is attached to the transpalatal bar at one end and the front of the appliance at the other end, aids in inhibiting and restraining the upward and backward movement of the tongue.

A device which is removably insertable in the mouth for facilitating breathing while sleeping which provides a clear unobstructed airway by protrusive positioning of the mandible and / or delivery of pressurized air to the back of the mouth. The device has upper and lower tooth-contacting members and an airway defined between them.

The present invention provides methods for acquiring and utilizing time-based 3d jaw motion images (4d datasets) to enhance the computer-aided design (CAD) of dental devices, which may include dental restorations, oral prostheses, and oral appliances. These 4d datasets may be used directly to provide a jaw motion model suitable for enhanced CAD or, they may be used to derive mathematical expressions that are then used to drive a motion simulation. The methods of the invention are based on acquiring time-based 3d images (a 4d sequence) of the upper and lower teeth, with each 3d frame in the time sequence capturing some upper and lower arch anatomy (the oral anatomy). Each image in the 4d sequence may therefore contain an accurate record of the relationship between the upper and lower arch in three dimensions.

A mandibular advancement device including upper and lower dental plates which operatively fit over at least part of the upper and lower teeth of a user, said upper and lower dental plates being made from a flexible material, the lower dental plate having two pairs of spaced apart pillars, each pair consisting of an anterior and posterior pillar, said pairs being on opposing sides of the lower dental plate, two removably attachable horizontal displacement inserts, mounted in the buccal region on opposite sides of the upper dental plate, two removably attachable vertical displacement inserts mounted in the lower dental plate, placed in a manner to provide correct vertical registration of the teeth, such that operatively each horizontal displacement insert is retained between the respective anterior and posterior pillars to maintain an advancement of the mandible. A method for production of the mandibular advancement device is also claimed.

A performance enhancing and force absorbing mouthguard adapted to fit the upper teeth of the mouth of an athlete wherein the mouthguard is of a composite material. The first internal layer is a nonsoftenable flexible framework which will permit the mouthguard to hold its shape during fitting as well as to absorb and dissipate significant impact conveyed to the upper teeth. The framework includes hard, durable bite plate wedges which lower the condyle from the temporomandibular joint in a fulcrum action to place the lower jaw in an optimum condition preventing impingement upon the nerves and arteries as well as spacing the upper and lower teeth apart. Elastomeric traction pads are on the bottom of the mouthguard and are grippingly engaged by the posterior teeth of the lower jaw. The elastomeric pads extend forwardly to form an anterior impact brace on the front of the mouthguard. While the framework and traction pads are mechanically interlocked, a softenable material is placed over the mouthguard excepting the contact portions of the traction pads and anterior impact brace to encapsulate the mouthguard and to permit custom fitting.

A method and apparatus for generating a three-dimensional digital model of a desired orthodontic structure include processing that begins by obtaining a three-dimensional model of an actual orthodontic structure, wherein the three-dimensional digital model is defined in x, y, z space. The processing then continues by generating an interim three-dimensional model of the desired orthodontic structure less teeth. The interim three-dimensional model is designed in x, y, z space and includes the desired placement of an occlusal plane, an upper-arch form, a lower-arch form, an upper-arch midline, and a lower-arch midline. The processing then continues by positioning the upper and lower teeth with respect to the interim digital model and the defined x, y, z space to obtain a first pass three-dimensional digital model of the desired orthodontic structure. The processing continues by determining whether achieving the first pass three-dimensional model is feasible. When achieving the first pass three-dimensional image is feasible, the processing continues by utilizing the first pass three-dimensional model as the desired three-dimensional digital model.

The invention is a removable plastic oral appliance which includes sensors for detecting the position of a patient's tongue and mandible. Pressure sensors in the appliance itself detect tongue contact and pressure against the palate or the lower teeth against the upper teeth. The sensors are connected electronically to an electronic processor which interprets the information against one or more contra-indicated tongue or jaw positions or activities, and selects an appropriate response from a pre-selected range of responses. The electronic processor sends a signal to a stimulus electrode to cause the patient to stop the contraindicated tongue position, jaw position, or activity.

In one embodiment, a device for improving a user's breathing includes an upper arch adapted to receive at least some of the user's upper teeth and a lower arch adapted to receive at least some of the user's lower teeth. A hook having a substantially rounded end is coupled to the upper arch. The lower arch includes a substantially rounded recess adapted to receive and position the substantially rounded end of the hook to pull the lower arch forward to facilitate improved breathing.

An oral appliance assembly is described. The assembly includes an oral appliance component having an upper teeth tray and a lower teeth tray. The assembly further includes a module releasably connected to the oral appliance. The module includes at least one sensor that is positioned outside of the mouth and underneath the nares of a subject's nose when the oral appliance component is positioned in the subject's mouth. A method of measuring user compliance of an oral appliance is also described. The method includes positioning an oral appliance in the mouth of a subject, measuring at least one parameter of airflow from the subject's nose or mouth, and determining compliance based on the at least one measured parameter. A method of measuring effectiveness of an oral appliance is also described. The method includes positioning an oral appliance in the mouth of a subject, measuring at least one parameter of airflow from the subject's nose or mouth, and determining effectiveness based on the at least one measured parameter.

The present invention relates to an electromotive toothbrush and more particularly, to an electromotive toothbrush, comprising upper and lower tooth covers surrounding and covering upper and lower teeth, respectively, and having bristles formed at a surface contacting the teeth; a first driving rod combined with a surface of the upper and lower tooth covers where there are no bristles; a second driving rod combined with a left side of a surface of the upper and lower tooth covers where there are bristles; a third driving rod combined with a left side of a surface of the upper and lower tooth covers where there are bristles; a plurality of sensors independently sensing positions of the first, second, and third driving rods; reciprocation means driving the first driving rod and the second and third driving rods in opposite directions to move the upper and lower tooth covers in opposite directions and thereby clean the teeth, the reciprocation means driven by power supplied from a motor, in response to position information sensed by the plurality of sensors.

An intra-oral pressure monitoring system is provided. The system is beneficial for measuring or monitoring teeth clinching or grinding during sleep. The system includes a generally horseshoe-shaped, elastomeric mouth piece. The mouth piece is dimensioned to reside between the upper and lower teeth of a patient. The mouth piece has a two or more fluid-containing cells embedded therein. The cells are configured to receive pressure applied by the teeth of a patient. The system is able to monitor bite pressures during a patient's sleep or time of resting. A method for monitoring bite pressures of a patient during sleep is also provided.

Disclosed is herein a teeth whitening apparatus. The teeth whitening apparatus according to the present invention includes a mouth gap inserted into a user's oral cavity so as to be in close contact with his or her teeth, and a main body connected to the mouth gap by means of a cable and configured to supply power to the mouth gap, the main body having a switch configured to control an ON / OFF operation, wherein the mouth gap includes: a body formed in a flat rectangular parallelepiped shape which is curved in its entirety, the body having an accommodating space formed therein and an opening formed at one side thereof; a light-emitting unit mounted in the accommodating space of the body and including a PCB embedded with a plurality of light-emitting devices; and an oral cavity wearing unit including a coupling member detachably coupled to the outer periphery of the opening of the body and having a vent aperture formed at the center thereof and an insertion member formed at one side of the coupling member so as to be inserted into the user's mouth and brought into close contact with his or her teeth, and wherein the insertion member comprises a pair of opposed holding protrusions protrudingly formed inwardly from the inner surface thereof so as to be held between his or her upper and lower teeth, the insertion member having one or more elongated vent holes formed thereon in such a manner as to be perforated in a predetermined length to have air permeability.

Comprising a base member made of nylon having a generally U-shaped form corresponding to the outline of the jaw of a user and a teeth engaging member that encases the base member. The base member has an open frame structure with curved inner and outer elongate frame members interconnected at spaced intervals by transverse frame members. The continuous teeth engaging member that is made of silicone rubber or PVC comprises a web and inner and outer flanges projecting up and down from both An orthodontic trainer for assisting the correction of the misalignment of teeth upper and lower faces of the web. These flanges and the web define upper and lower channels within which the upper and lower teeth of the user can be received.

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.

A plastic mouthpiece insert for allowing a wearer to whiten their teeth while getting a suntan, and have a generally oblong oval-rectangular opening with a curved rear end that abuts against the root surfaces of the frontal upper and lower teeth of the wearer. A raised front edge can protect the lips and separate in place about the opening to the mouthpiece. Whitening agents can be used to enhance the whitening effect so that ultraviolet light and heat source such as the sun or a sunlamp is all that it is needed. Reflective inner walls in the mouthpiece can magnify light to the teeth. The mouthpiece can include bite tables, and the side walls of the mouthpiece can be inwardly flared and funnel shaped for focusing and magnifying incoming light and heat. The mouthpiece can be colored to protect the inside of the wearer's mouth from receiving any light.

A dual arch dental appliance including a body which contains a pair of impact absorbing members located in molar regions of the arches. The impact absorbing members are selected from plastic material that exhibits high impact absorption coupled with low resilience or rebound. The result is an appliance which transfers minimal shock to the wearer. The appliance preferably further includes a bumper for providing enhanced impact protection to all of the user's upper and lower teeth. An airway opening is preferably provided to facilitate breathing when the appliance is clenched between the teeth. A post may be provided for structural reinforcement of the airway opening and, optionally, for receiving a tether for fastening the device to a helmet.

Methods and apparatus fit a set of upper and lower teeth in a masticatory system by generating a computer representation of the masticatory system and computing an occlusion based on interactions in the computer representation of the masticatory system.

A dental device comprises an intraoral nasal dilator and a mandibular repositioner working synergistically as an anti-snoring device. The device has a lower segment of thermoplastic material which is formed to fit over the lower teeth and is connected to an upper section of molded material extending between the upper jaw and the upper lip by a wire connector. The wire connector has mechanisms allowing adjustment of the lower jaw positioning. A wire extension with acrylic pads at end is bonded in the midline of the flange and extends out so that the pads stretch the tissue of the lip and lateral nasal walls preventing collapse during respiration while the anterior repositioning of the lower jaw maintains opening of the posterior pharyngeal airway during sleep functioning as an anti-snoring device. Additional applications of the intraoral nasal dilator include incorporation into sports mouth guards using a variety of materials.

A device, method, and system are provided for aiding the whitening of teeth. The device includes a mouthpiece suitable for implementing a dental treatment, wherein the mouthpiece includes one or more stock dental cover layers suitable for forming a treatment cavity having a vacuum, wherein the dental cover layers includes a layer over the upper teeth and / or a layer over the lower teeth; and one or more treatment supply layers wherein the treatment supply layer has one or more flow channel in fluid communication with the treatment cavity so that the treatment supply layer can deliver and / or remove one or more treatment fluids from the treatment cavity.

A dental device comprises an intraoral nasal dilator and a mandibular repositioner working synergistically as an anti-snoring device. The device has a lower segment of thermoplastic material which is formed to fit over the lower teeth and is connected to an upper section of molded material extending between the upper jaw and the upper lip by a wire connector. The wire connector has mechanisms allowing adjustment of the lower jaw positioning. A wire extension with acrylic pads at end is bonded in the midline of the flange and extends out so that the pads stretch the tissue of the lip and lateral nasal walls preventing collapse during respiration while the anterior repositioning of the lower jaw maintains opening of the posterior pharyngeal airway during sleep functioning as an anti-snoring device. Additional applications of the intraoral nasal dilator include incorporation into sports mouth guards using a variety of materials.

An electric toothbrush in which the brushing head moves in an elliptical motion such that, on the brushing stroke, the bristles are proximate the teeth, and in the recovery portion of the cycle the bristles are pulled away from the teeth. A position sensitive switch automatically switches from a forward to a reverse operation of the electric motor, depending on the positioning of the toothbrush in a user's hand, allowing the user to brush both the upper and lower teeth using a stroke carrying the bristles from the gum line to the ends of the teeth, as is recommended by dental professionals, without having to move the toothbrush from hand to hand or manually move the switch from the forward to the reverse positions. A bridge pad engages the face of the teeth, maintaining a proper distance between the teeth and bristles during the elliptical rotation of the brush head.

Disclosed herein is a continuously operable seat-reclining device having an improved actuator to substantially carry out a reclining operation of the reclining device such that an actuating force of a shaft is uniformly transmitted to the entirety of a coupling. The continuously operable seat-reclining device basically comprises an upper teeth bracket and a lower teeth bracket securely fixed to a seat back frame and a cushion frame, respectively, the upper teeth bracket being provided with upper teeth, the lower teeth bracket being provided with lower teeth, the upper teeth of the upper teeth bracket being engaged with the lower teeth of the lower teeth bracket, a cam hole formed at the center of the lower teeth bracket, and an actuator disposed between the cam hole and the cam-maintaining ring for moving the upper teeth bracket relative to the lower teeth bracket.