56 results about "Mandibular teeth" patented technology

Disclosed is an orthodontic appliance for straightening misaligned teeth. The orthodontic appliance is made of a shape memory polymer, and is formed in a cap-shaped tray capable of covering the maxillary or mandibular teeth. An original shape of the tray-type orthodontic appliance made of the shape memory polymer is identical to that of perfectly aligned teeth obtained after orthodontic treatment, and a temporarily formed shape of the tray-type orthodontic appliance is identical to that of the teeth alignment of a patient before orthodontic treatment. The tray-type orthodontic appliance is restored to the original shape memorized at a temperature above a specified glass transition temperature. The orthodontic appliance can be easily manufactured to perform orthodontic treatment, also providing appealing esthetics, in which the orthodontic appliance can be colored to be identical to a tooth with inexpensive manufacturing cost.

A custom mouthguard has a resilient U-shaped body with an anterior wall and a posterior wall. A post dam on the posterior wall forms a seal with palatal tissue to increase retention of the mouthguard in a wearer's mouth. The increased retention allows a wearer to speak and open mouth breath while wearing the mouthguarrd. The mouth guard also has an indexed region that serves to mutually stabilize maxillary teeth, mandibular teeth, mandible and TMJ components. Mouthguard methods and processes are also disclosed.

The invention relates to a digital tooth arrangement method used in the field of orthodontics. The digital tooth arrangement method is characterized in that the positions of tooth roots in a tooth arrangement process are displayed by using the digital technology; the tooth arrangement result is enabled to be within the physiological limitation and to be more accurate and reasonable. The method comprises the steps: 1, establishing an orthodontic virtual dentognathic model comprising tooth root information; 2, determining points and parameterizing all teeth; 3, defining a global coordinate system; 4, arranging mandibular teeth: 1) positioning lower incisors, 2) constructing a bracket plane, 3) constructing a dental arch curve and arranging teeth, 4) constructing a tooth root plane and a root face curve, and 5) adjusting the positions of tooth roots; 5, arranging maxillary teeth: 1) positioning upper incisors, 2) adjusting maxillary bracket points and constructing a bracket plane, 3) constructing a maxillary dental arch curve and arranging teeth, and 4) adjusting the positions of tooth roots; 6) fine tuning a tooth arrangement result on the basis of collision detection.

A pair of dental burs for shaping mandibular teeth into the proper sloped configuration for lingual occlusion or denture teeth. The first bur is provided with a non-cutting central portion that is flanked by two slightly angled cutting surfaces, and the second bur is provided with a cutting central portion that is flanked by two slightly angled non-cutting surfaces. The angulation of the two cutting surfaces on the first bur may or may not match each other on a given set of burs, and the angulation of the two non-cutting surfaces on the second bur may or may not match each other on a given set of burs, but the angles of the cutting surfaces on the first bur match the angles of the non-cuffing surfaces on the second bur. The burs are used sequentially; i.e. the first bur is used first and the second bur is used second, to achieve the desired slope and center floss for the mandibular teeth without cutting too deeply.

The invention provides a novel oral cavity orthodontic appliance, wherein the appliance comprises a tooth socket body, and a orthodontic bench is arranged on the tooth socket. The orthodontic bench is arranged on a lingual side of incisors or a lingual sides of incisors and canine teeth of the tooth socket body, and comprises a contact surface and a holding surface, wherein one end of the contact surface is connected with the tooth socket body, the other end of the contact surface is connected with the holding surface, and the orthodontic bench is a plat bench or a sloping bench, when the orthodontic bench is a plat bench, the contact surface matches with a occlusalf surface of maxillary-mandibular teeth, when the orthodontic bench is a sloping bench, the contact surface is in parallel with a lingual side of the a occlusalf surface of maxillary-mandibular teeth, or the contact surface and the a occlusalf surface of maxillary-mandibular teeth form an included angle. According to the invention, an ordinary tooth socket and a flat bite plate or an inclined bite plate are integrated into one body to replace the clasp and the flat bite plate or the inclined bite plate with adjacent hook-type retention. The appliance provided in the invention enlarges indication scope of orthodontic invisable aligner technique, and the appliance can be applied in a bracket treatment system. The appliance has characteristics of comfortable wear, transparentness and beautiful look, and is made of an elastic polymer material. The appliance can give continuous elastic force to the tooth that needs to be intruded or led, so that the orthodontic effect is better.

A mandibular advancement device used in the management of snoring, obstructive sleep apnea, TMD and bruxism and jaw clenching, comprises a maxillary tray for receiving/retaining maxillary teeth, a mandibular tray for receiving/retaining mandibular teeth, and one to two advancement member(s)/prong(s) located on the mandibular tray at the anterior region thereof. The advancement member(s)/prong(s), when in use, contact the outer surface of the maxillary tray in an anterior region thereof, thereby advancing and retaining the mandible and tongue in a protrusive position. Raized occlusal surfaces/bite pads in a region contiguous and posterior to the advancement prong(s) allow a passive tongue retaining gap or space to be formed in the anterior and posterior regions of the device. A lingual retaining strap may be provided between opposite posterior portions of the mandibular tray to passively retain the tongue in a protruded, non-obstructive position.

An oral apparatus for mandibular jaw manipulation is provided. The apparatus having an upper tray configured to receive a plurality of maxillary teeth and a lower tray configured to receive a plurality of mandibular teeth. The upper tray may optionally have one or more upper anchor members configured as adjustable upper anchor members coupled to the upper tray. The lower tray may optionally have one or more lower anchor members configured as adjustable lower anchor members coupled to the lower tray. Each upper anchor member, which may be adjustable, may be configured to contact a lower anchor member, which may be adjustable, to adjust the positional relationship between the mandible and the maxilla of a mouth when a user wearing the oral apparatus closes their mouth to bring the upper and lower anchor members into contact with each other.

A maxillary, mandibular, or dual concussion orthotic that substantially reduces concussion resulting from forces applied to the lower jaw, and a method of producing the orthotic. The orthotic device produced according to the method described herein is objectively measured and produced to physiological parameters for an individual user. The orthotic is constructed so that the mandibular teeth are firmly indexed into the orthotic to hold the mandible in a specific position relative to the maxilla. The upper and lower jaws are positioned by the orthotic to act as a unit, and cooperate with the orthotic to effectively dissipate concussive forces and provide spacing of the temporomandibular joint, resulting in the decompression of the joint to mitigate transmission of concussive forces from the condyles of the mandible to the temporal bones of the skull.

A dental impression apparatus for obtaining a patient's dental impression is provided. The dental impression apparatus includes a support frame of a predefined shape, a partially permeable membrane mounted on the support frame, and absorbent barrier members. The support frame includes a distal member, a buccal edge member, and a lingual edge member. The absorbent barrier members mounted to the buccal edge member and the lingual edge member of the support frame define opposing troughs separated by the partially permeable membrane. The opposing troughs receive the patient's mandibular teeth and maxillary teeth. The opposing troughs are deposited with a first impression material and/or a second impression material for obtaining the dental impression of the patient. The absorbent barrier members confine a flow of the first impression material and the second impression material within the opposing troughs, when the patient applies a biting force within the opposing troughs.

The invention relates to a full-tooth automatic toothbrush. The full-tooth automatic toothbrush comprises a driving motor, a power supply, a control device and a brush head; the brush head is arc-shaped and can be contained in an oral cavity; semi-surrounded brush surfaces are arranged up and down along the shape of the brush head; and each brush surface is provided with an inner-tooth brush surface, an outer-tooth brush surface, an occlusion brush surface and a hair-planting beam. The electric toothbrush can clean maxillary teeth and mandibular teeth simultaneously, and the driving motor is positioned on the inner side of the brush head. The invention provides the electric toothbrush which is higher in efficiency and convenient to operate, accords with the physiological structure of a human body and can correct bad tooth-brushing action to avoid tooth injury; and through setting of the motor position, the kinetic energy of the motor can be effectively transmitted, the brush head adheres to the teeth well, and cleaning dead corners are avoided. In the use process of the full-tooth automatic toothbrush, double hands can be liberated.

A teeth grinding preventing device to be put in an oral cavity of a user includes a main body portion formed into a substantially arcuate shape along a curve of a maxillary teeth alignment of the user and configured to cover an occluding surface of the maxillary teeth, a sensor portion embedded in the main body portion to extend in parallel to the occluding surfaces of maxillary and mandibular teeth and configured to detect an occlusal force and output a detection signal, a teeth grinding determining portion configured to receive the detection signal and determine whether or not the user is grinding the teeth, and a stimulation providing portion configured to provide the user with a stimulation when the teeth grinding determining portion determines that the user is grinding the teeth, and the stimulation providing portion is provided to be mountable and demountable with respect to the main body portion.

A bite registration device is provided that can be placed within a patient's mouth and adjusted to a desired position relative to the patient's maxillary and/or mandibular teeth while permitting visual inspection of the patient's anterior teeth during acquisition of the bite registration. The bite registration device is also configured to permit introduction of bite registration material without having to remove the device from the patient's mouth once optimal positioning has been established.

The invention relates to medical equipment for dental operation, and in particular relates to a medical oral cavity positioning spreader. The spreader comprises a mandibular support sleeving mandibular teeth, a maxillary support sleeving maxillary teeth and a plurality of connecting rods hinged between the two supports, wherein the connecting rods are connected to a center shaft through hinged shafts; and a turbine worm mechanism for driving the hinged shafts to move is arranged on a position, between the two hinged shafts, of the center shaft. The spreader is compact in structure, convenient to use, accurate in positioning, safe and reliable and has the advantages that the oral cavity of a patient can be positioned at any angle through the self-locking function of the turbine worm mechanism, no extra locking mechanism is needed, the danger and the hidden danger caused by suddenly closing of the oral cavity of the patient are avoided.

The invention relates to a rehabilitation apparatus and provides a tongue muscle training and nursing device. The tongue muscle training and nursing device comprises a tooth sleeve fixed with mandibular teeth. The inside of the tooth sleeve is fixed with a support seat contacting a jaw. A lower support board which can be lifted upward and downward is arranged above a support seat. A left movable board and a right movable board, capable of relatively rotating, are hinged onto the lower support board. A support surface contacting left and right sides at the lower part of a tongue is formed by the left movable board and the right movable board. Air bags used for ejecting above boards are respectively below the lower support board, the left movable board and the right movable board. The air bags are connected with an air filling device through air pipes. Quantitative massage is decided by air pressure. A scientific exercise manner helps relieve discomfort of a patent. Pressure can be directly observed, which brings convenience for a user to consult in order to adjust. Physiotherapy is carried out in a more scientific manner.

The embodiment of the application provides a bite fork making method, and a bite fork data processing method and device. The bite fork data processing method comprises the steps of obtaining scanningdata, wherein the scanning data comprises a tooth periphery image area of a target user; determining a maxillary tooth column area and a mandibular tooth column area of the target user according to the tooth periphery image area in scanned data; generating a target tooth mold according to the maxillary tooth column area and the mandibular tooth column area; determining a stretching area accordingto the target tooth mold, wherein the stretching area expresses a part of external surface area of the target tooth mold; and generating a bite fork model according to the stretching area. Through theadoption of the bite fork data processing method, the problem that a bite fork is difficult to mount in the prior art can be solved.

The present invention discloses a tooth root stress testing device based on a flexible sensor. The tooth root stress testing device comprises a force measuring device and a detection system; the forcemeasuring device comprises an upper base seat, a lower base seat, a plurality of maxillary tooth root test assemblies arranged at a lower part of the upper base seat and mandibular tooth root test assemblies arranged at an upper part of the lower base seat; the detection system comprises a data processing device and a data acquisition unit; and the flexible sensor is connected with the data acquisition unit and the data acquisition unit is connected with the data processing device. The tooth root stress testing device can conveniently, rapidly and simultaneously measure stress parameters of tooth roots in all directions, can accurately measure orthodontic force of the tooth roots by simulating a real tooth state of a patient in vitro, thus accurately analyzes an expected orthodontic forceapplication effect, etc. of a dental orthodontic appliance, and thus provides reliable basis for improving an orthodontic scheme and orthodontic appliance performances.