34 results about "Lower incisor" patented technology

A TemporoMandibular Joint (TMJ) balancing appliance and a method for using the same are provided, in which a first base portion accommodates incisor teeth, a second base portion is extended from a left side of the first base portion and accommodates left molar teeth, and a third base portion is extended from a right side of the first base portion and accommodates right molar teeth. The first base portion includes an upper part for accommodating upper incisor teeth and a lower part for accommodating lower incisor teeth and has a center for accommodating the upper and lower incisor teeth higher than the left and right sides.

The invention belongs to the technical field of medical appliances, in particular to a skeletal III-type malocclusion appliance which is used for treating skeletal III-type malocclusion. The skeletal III-type malocclusion appliance comprises an upper conjoined crown sleeved on upper molars and a lower conjoined crown sleeved on lower molars; a first permanent magnet and a second permanent magnet are respectively fixed to the buccal sides of the upper conjoined crown and the lower conjoined crown; in the state that the upper row of teeth and the lower row of the teeth are closed, the first permanent magnet of the upper conjoined crown is positioned in front of the second permanent magnet of the lower conjoined crown and the like polarities are opposite to each other; and due to the thickness of an occlusal surface of the upper conjoined crown and the lower conjoined crown, the incisal edge of upper incisor teeth is higher than the incisal edge of lower incisor teeth. Compared with conventional appliance, the skeletal III-type malocclusion appliance does not influence work, study and sleep, is not easy to expose when in use, is easy to be accepted by patients, and is easier to popularize.

The invention relates to an appliance for guiding a mandible forward and/or getting rid of a bad habit of sucking a lower lip and a preparation method thereof. The involved appliance comprises a base plate, the base plate is provided with fixing components, a palatal side inclined-face guide plate and a lower incisor teeth cap for guiding the mandible forward, and the palatal side inclined-face guide plate is provided with inclined guide wires. The involved preparation method comprises the following steps: acquiring a relationship in clinic; bending the fixing components and the inclined guide wires; laying a mandible tongue side with wax from a mouth bottom to a position about 1-2 mm above a lingual frenum, and fixing the inclined guide wires with wax; and connecting the fixing components into a whole at a palatal side by plastic cement, preparing the palatal side inclined-face guide plate, and connecting with the inclined guide wires fixed by the wax into a whole by plastic cement. According to the appliance, the palatal side inclined-face guide plate is added with the inclined guide wires, the mandible incisor teeth cap guides the mandible forward, the mandible is passive to extend forward, at the same time, the lip is limited to incline down to anterior teeth, a force source is concentrated at maxillary and mandible anterior teeth areas, mandible posterior teeth have no contact with the appliance, and mandible molars can be extended, so as to correct deep overbite and correct and cure an Angle II type relationship.

A lip advancer is presented for preventing proclining or tipping forward of the lower incisors that causes relapse and gingival recession in retention with forward intermaxillary elastic traction that extends diagonally from posterior bracket hooks in the lower arch anchored to hooks on upper anchorage appliances. In one embodiment, the lip advancer is comprised of an invisible clear liner type plastic retainer for use with a dental arch, and a bumper extending labially from the retainer for pressing against the patient's lip causing the lip muscles to react pushing back with an opposite force thus preventing the anterior teeth from flaring labially. In another embodiment, for use with a plurality of brackets and an archwire, the lip advancer comprises an auxiliary archwire extending from and in contact with the brackets, and a bumper formed on the auxiliary archwire for applying pressure labially to a corresponding lip.

A protective mouthguard has an upper arch or upper mouthguard section with a plurality of alveoli configured to accept the user's upper incisors, canines and at least the first upper molars. The mouthguard has a lower arch or lower mouthguard section with dual lateral wing sections, each wing section having a plurality of alveoli configured to accept only the user's lower bicuspids and at least the first upper molars. The user's lower incisors, canines, and second molars remain uncovered, The mouthguard provides a custom designed dual arch which minimizes and even prevents lateral displacement of the lower jaw.

The invention relates to the test system and a method thereof and particularly relates to an LSTM-based method for inverse interpretation of independent speaker speech pronunciation. The method is specifically characterized in that (1), firstly, four designated audio signals and synchronized trajectory signals are collected, and data at six points of an upper lip (UL), a lower lip (LL), a lower incisor (LI), a tongue tip (TP), a tongue body (TB), a tongue dorsum (TD) are collected through mounting a sensor; and (2), after the step (1), a nose bridge (RF) is selected as a reference point, and asensor is further placed at the reference point for data collection. The method is advantaged in that firstly, the speech pronunciation trajectory of speakers not appearing in a training set is predicted; secondly, input characteristics are changed, better and more appropriate acoustic characteristics are selected as network input, and RMSE and correlation coefficients are improved; and thirdly,discontinuous and unsmooth characteristics of trajectory collection are overcome.

The invention provides a correcting device for assisting protraction of the lower jaw and retraction of the upper anterior teeth and relates to the field of orthodontic clinical instruments. The correcting device comprises a planar guide plate parallel to an occlusal plane, a guide rod, a support and an implant anchorage peg, wherein the planar guide plate is arranged on the central incisor palate side of the upper jaw and engages with lower incisors; the support comprises an arc-shaped body, a first connection rod, a traction post and attaching parts, two ends of the arc-shaped body are respectively connected with the attaching parts, the arc-shaped body is connected with the first connection rod extending near a central direction and the traction post extending near a central occlusion direction; the end, near the central direction, of the first connection rod is connected with the planar guide plate, the guide rod is connected to the occlusion side of the planar guide plate, and the guide rod is abutted to the tongue side of the lower incisors; the implant anchorage peg is arranged on the palate, and a rubber band in a tensional state is arranged between the implant anchorage peg and the traction post.

The invention relates to a comforter intended for children who have their primary or permanent dentition and whose central and lateral incisors have fully erupted, comprising in particular an intra-oral part (C), which has a hook-shaped lower incisor groove (2) comprising an inclined bite plane (6), the hollow of the groove and a retro-incisor return of reduced thickness. The intra-oral part can also have two opposite labial grooves (4) and (5), an upper incisor groove (1) opposite the groove (2) and separated therefrom by the inclined bite plane (6), and also a lingual bulb (3) centred on the upper part of the retro-incisor return of the groove (2), favouring the upper and forward position of the tongue. The invention further relates to a personalized comforter which, in the incisor groove (1) and/or in the incisor groove (2), has the impression of the incisors of the child for whom said personalized comforter is intended.

The invention provides a physical therapy device helping patients (who suffer a head and neck neoplasm radiotherapy, burn, an oral and maxillofacial surgery and the like) hard to open mouths to restore masticatory and language functions. The physical therapy device is composed of a body, a transmission part and a control part. The body comprises an upper shifting piece (1), lower shifting pieces (2) and a handle (3). The transmission part is a transmission flexible shaft (4). The control part comprises an adjusting rotary knob (5), a fixed handle (6) and a movable handle (7). Before use, the adjusting rotary knob (5) is rotated according to illness state. In use, the upper shifting piece (1) and the lower shifting pieces (2) which are in natural closed state are placed between upper and lower incisors, the handle (3) is held by one hand, and the fixed handle (6) and the movable handle (7) are held by the other hand. Once held, the movable handle (7) moves toward the fixed handle (6), allowing the upper shifting piece (1) and the lower shifting pieces (2) to be opened through the transmission flexible shaft (4), and accordingly the mouth is opened, and mouth functions are restored. The physical therapy device is applicable to the patients who have mouth opening difficulties and masticatory and language dysfunctions caused by the head and neck neoplasm radiotherapy, the burn, the oral and maxillofacial surgery and the like.

The invention discloses a tracheal intubation method for a mouse, and belongs to the field of tracheal intubation. The method comprises the steps: the neck of the mouse leans backwards for 45 degreeswith the head end located on an operation table; two sides of the operation table are each provided with a groove wound with a rubber band; the rubber bands are used for pulling upper incisors of themouse; the operation table is connected with a middle vertical plate; supporting frames are installed at two ends of the upper portion of the middle vertical plate; rubber ropes are wound around two sides of each supporting frame; the rubber ropes pull lower incisors of the mouse to open upper and lower jaw joints of the mouse; and cold light source is used for irradiating a position 0.5-1cm awayfrom the neck of the mouse; the tongue of the mouse is pulled out towards the left side; and bent tweezers a and bent tweezers b prop up the pharyngeal wall of the mouse to complete exposure of the glottis of the mouse. The invention provides the trachea intubation method that a special laryngoscope for rodents including mice and the like is not needed, the glottis is exposed more sufficiently, the intubation operation space is larger, and the success rate is higher.

The present invention relates to one kind of life article and is especially one kind of teeth sheath for protecting incisors against damage in cracking melon seed. The teeth sheath is V-shaped to match incisors, and sleeved onto the upper and the lower incisors. The teeth sheath has opened end inwards inclined for clamping the incisors, incisor clamps set symmetrically inside the opened end and incisor pads set symmetrically inside the sheath. All the incisor clamps and the incisor pads are made of flexible material for adhering inside the teeth sheath. During cracking melon seed, the teeth sheath is sleeved onto incisors for protection.

A vocalization appliance for assisting vocal cord closure training includes: an inner arc plate, an outer arc plate, and two partitions which are oppositely disposed, wherein the inner arc plate is opposite to the outer arc plate, and the two partitions are placed with an interval between the inner arc plate and the outer arc plate; the two partitions, the inner arc plate and the outer arc plate are enclosed to form an accommodating cavity, and the accommodating cavity is separated into an upper accommodating room and a lower accommodating room along a height direction; the upper accommodating room accommodates upper incisors while the lower accommodating room accommodates lower incisors; opposite side ends of the inner arc plate respectively extend away from the accommodating cavity, and opposite side ends of the outer arc plate also respectively extend away from the accommodating cavity, thereby separating mouth corners.

The invention belongs to the field of oral disease treatment, in particular relates to a biteplate for improving a trigeminal noxious inhibitory-stress relief system and a using method thereof. The biteplate consists of a palate plate and a lower incisor guide plane, wherein the palate plate is a semi-circular plate in a shape matched with an upper jaw structure; the arc edge of the palate plate extends to the distal of the first or the second premolar of the upper jaw; grooves are reserved at two sides of the palate plate; the grooves extend into jaw side undercuts of the premolar of the upper jaw; and the lower incisor guide plane is of a flat-front thick-rear strip shape, and is positioned in the middle of the palate plate. The using method comprises the following steps: selecting upper and lower jaw denture models of a patient; transferring the bite relationship of the patient to a semi-adjustable or full-adjustable articulator according to a conventional method; manufacturing a primary model of the biteplate by using low-melting soft wax according to the upper jaw model of the patient; manufacturing the primary model of the biteplate by the soft wax into a resin finished product through embedding, injection molding and heating methods; and trying the manufactured biteplate in the mouth of the patient, and adjusting the thickness of the lower incisor guide plane to ensure that only the lower incisor teeth in the lower jaw teeth are contacted with the lower incisor guide plane and other teeth do not have bite contact when the patient bites in each direction. The biteplate cannot cause upper incisor inclined towards the lip when excellent retention is achieved.

The invention provides an alveolar bone contour prediction model generation method and device, and a prediction method and device. The alveolar bone contour prediction model generation method comprises the following steps: acquiring training sample data, wherein the training sample data comprises a feature image before correction, correction parameters and deformation quantities of upper and lower alveolar cavity contour lines after correction based on the correction parameters; taking correction parameters, a control point of an upper alveolar lingual side contour line before correction, a control point of an upper alveolar labial side contour line before correction, a control point of a lower alveolar lingual side contour line before correction, a control point of a lower alveolar labial side contour line before correction, a contour of upper incisors before correction and a contour of lower incisors before correction as input of an initial network model; performing supervised training by taking the corrected deformation quantity of the upper and lower alveolar contour lines as the output of the initial network model to obtain an alveolar bone contour prediction model. The alveolar bone after orthodontics can be scientifically and reasonably predicted through the obtained alveolar bone contour prediction model.

The invention discloses a tooth cushion kit for an oral catheter; the cross section of a tooth cushion body is in an isosceles trapezoid shape; furthermore, a penetrating groove is formed in the tooth cushion body in a penetrating mode; limiting protection arms are symmetrically installed on the peripheries of the two longitudinal ends of the tooth cushion body; tooth grooves are formed in the positions, between the limiting protection arms on the two sides, of the two sides of the tooth cushion body; and a traction strip is connected to the bottom of the tooth cushion body. According to the invention, the tooth cushion body is set to be in the isosceles trapezoid shape; the base angles alpha with different opening degrees are set according to different crowds so as to improve the applicable crowd of the tooth cushion body; the limiting protection arms are fixedly installed on the two sides of the tooth cushion body to prevent the tooth cushion body from shifting and loosening; the tooth grooves are formed in the two sides of the tooth cushion body between the limiting protection arms on the two sides and can contain 3-4 molars; the contact area of a tooth cushion and a tooth body is increased; the pressure of the tooth cushion on a single tooth body during the use of the tooth cushion is reduced; damage such as tooth loosening and falling caused by long-time pressure is prevented; the tooth cushion is moved backwards from traditional upper and lower incisor teeth to molar positions on the two sides; and occlusion is more reliable.