514 results about "Teeth grinding" patented technology

The invention belongs to the technical field of stomatology, and particularly relates to an upper jaw fixing expansion appliance which comprises a spiral expansion device, a plastic base, a connecting rod, a retention device and a dental retraction traction hook. The spiral expander is positioned in the center of the appliance, and the plastic base plate is two parts which are separated from each other in the center and connected with the spiral expander and covers the hard palate part of the upper jaw. The retention device is composed of a milk molar or premolar casting continuous belt ring and a first molar independent casting belt ring. And the left and right dental retraction traction hooks are positioned in the plastic base and are used for retracting and pressing the first molar of the upper jaw of buccal inclination after the expansion of the arch. The appliance disclosed by the invention is wide in clinical application range, and is suitable for light and moderate teenager patients with lateral maxillary development insufficiency and maxillary posterior tooth buccal inclination compensation. According to the invention, a good bony expansion effect can be realized for patients in a replacement dentition stage or a permanent dentition early stage and patients in rapid maxillary expansion, and excessive buccal inclination and movement of teeth are reduced.

The invention relates to the technical field of oral medical instruments, and particularly provides a customized joint jaw position appliance and a manufacturing method thereof.The customized joint jaw position appliance comprises an appliance body, the appliance body comprises an upper jaw tooth occlusion sleeve and a lower jaw tooth occlusion sleeve, and a first occlusal surface of the upper jaw tooth occlusion sleeve is effectively occluded with a second occlusal surface of the lower jaw tooth occlusion sleeve; the guide inclined surface is arranged on the inner side of the anterior tooth area of the appliance body; the upper jaw blocking body and the lower jaw blocking body are respectively arranged on an occlusal surface, a cheek side surface or a lingual side surface of a premolar region on two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve; the upper jaw blocking table and the lower jaw blocking table are respectively arranged on the occlusal surface, the cheek side surface or the tongue side surface of the molar areas on the two sides of the upper jaw tooth occlusal sleeve and the lower jaw tooth occlusal sleeve, and are integrally connected with the appliance body to form a first occlusal surface and a second occlusal surface. According to the customized joint jaw position appliance, the disc-condylar relationship can be more accurately recovered according to the displacement condition of the joint disc of a patient through double-jaw coordination and multi-region blocking design, the treatment period is shortened, and the prognosis stability is improved by matching with a chewing function.

The invention discloses a tooth grinding control system for gear machining, and relates to the technical field of gear grinding. An arc-shaped material collecting cover is installed at the top of a lifting control frame, a blank positioning mechanism used for clamping a gear blank and controlling the gear blank to rotate is arranged on the inner side of the arc-shaped material collecting cover, a tooth groove grinding piece matched with a tooth groove is arranged on one side of a cutting cutterhead on the inner side of the arc-shaped material collecting cover, and a first scrap suction pipe is arranged on the other side of the cutting cutterhead. A second scrap suction pipe is arranged on the side, away from the cutting cutterhead, of the tooth groove grinding piece, the end of the first scrap suction pipe abuts against and aligns to the tooth groove in the gear blank to achieve scrap suction, and the end of the second scrap suction pipe abuts against and aligns to the tooth groove in the gear blank to achieve scrap suction. The cutting cutterhead and the tooth groove grinding piece are integrally arranged on the inner side of the arc-shaped top cover, turning and grinding machining of the gear can be achieved in the process of controlling the reciprocating grinding mechanism to do horizontal reciprocating motion, and the gear machining efficiency and quality are improved through the gear in-situ machining mode.

The invention discloses a molar signal monitoring system and method based on optimized variational mode decomposition, and relates to the technical field of bio-electricity signal detection and processing. The system comprises a signal acquisition module used for acquiring temporalis surface electromyogram signals; the signal preprocessing module is used for performing preprocessing and envelope calibration on the temporalis surface electromyogram signals; the GWO-VMD algorithm module is used for performing multi-modal characteristic decomposition on the target temporalis surface electromyogram signals by using a GWO-VMD algorithm; the feature extraction module is used for extracting time domain features and frequency domain features from the multiple modal components; the classification and recognition module is used for classifying the feature vectors; and the real-time feedback and evaluation module is used for carrying out molar state evaluation according to the state classification result, and generating and sending a molar state monitoring result. According to the invention, different actions such as tooth grinding, tooth clenching, speaking, chewing and the like can be accurately identified, so that the signals of tooth grinding and tooth clenching are extracted for quantitative calculation and evaluation, and higher monitoring precision and real-time performance are achieved.

Mandibular repositioning devices have a mandibular piece having a first teeth covering and having a housing proximate each of a left molar portion and a right molar portion, a protrusive flange extending cranially from each housing, and a maxillary piece having a second teeth covering and having a housing proximate each of a left molar portion and a right molar portion. Each housing encloses a power source electrically connected an on-board circuit board and the housings of the maxillary piece further have the power source electrically connected to a motor operatively connected to a drive for anterior and posterior movements of the mandibular piece. The maxillary piece sits on the mandibular piece with the driver operatively engaged with the protrusive flange. The protrusive flange has a concavely-shaped anterior surface mated to a convexly-shaped head of the driver shaped to match the concavely-shaped anterior surface of the protrusive flange.

An apparatus for treating bruxism comprising a main body element, a knob element, and a treatment arm. The main body roughly resembles a flattened golf club head and may have a recess on top, and is connected via the treatment arm to the knob element. The exterior of the apparatus has a smooth construction, with rounded edges lacking sharp corners or points, to assist with placement and comfort. When in use, the main body is placed in the cheek pocket and the treatment arm hooks behind the back molar, where it produces discomfort when fully biting down, thereby discouraging tooth-grinding during slumber.

The invention relates to the technical field of perioral muscle function detection, and discloses a flexible sensing function integrated tongue muscle function detection system and method.The system comprises a tooth socket type flexible film sensor, a wireless transmission module and a control module; the tooth socket type flexible film sensor is of a wearable tooth socket structure, a sensing array formed by a plurality of sensing units is arranged in the tooth socket type flexible film sensor, and the sensing array is distributed in an upper jaw area and a side tooth area corresponding to tongue muscle movement; the wireless transmission module is arranged on the outer side area of the upper molar and is connected with the tooth socket type flexible film sensor through the flexible printing circuit; the control module is connected with the wireless transmission module and comprises a calibration module, an initial value determination module, a correction module and a data storage and communication module. According to the invention, accurate, non-invasive and real-time monitoring of tongue muscle activity is realized.

The invention discloses a numerical control forming gear ring inner tooth grinding machine and a using method thereof.The numerical control forming gear ring inner tooth grinding machine comprises a lathe bed assembly, a numerical control rotary table assembly, a grinding wheel spindle assembly and a workpiece clamping assembly, the lathe bed assembly adopts a mineral casting base, the damping coefficient is larger than 10%, and a linear guide rail is installed on the lathe bed assembly; s3, grinding feeding and indexing; S4, grinding stage control; S5, track correction; S6, grinding wheel wear compensation; through a mineral casting base of the lathe bed assembly, an angle encoder of the numerical control rotary table assembly and a CBN material formed grinding wheel of the grinding wheel spindle assembly, the effect of improving the machining precision is achieved; through the steps S2, S4 and S5, the effect of optimizing the machining quality is achieved, the tooth profile error and the surface roughness are effectively controlled, and the machining quality of the inner gear ring is improved; and through S1, S3 and S6, the effect of improving the machining stability and reliability is achieved, and the machining stability and reliability of equipment are improved.

The invention discloses a snore-preventing device capable of being automatically adjusted to resist muscle fatigue. The snore-preventing device comprises a split tooth socket, an induction module, an integrated chip and a release module. The split tooth socket comprises a left rear molar tooth socket, a right rear molar tooth socket and an elastic pressing strip, the shell is formed by polyurethane 3D printing, a resin pressing die tooth socket is embedded in the shell, and a battery, an integrated chip and a signal circuit are arranged in the shell; the sensing modules are symmetrically arranged on the working surface of the inner side of the tooth socket and comprise flexible pressure sensors, humidity monitors and broken contact monitoring devices, the bottoms of the pressure sensors are arc-shaped triangular surfaces, the surfaces of the pressure sensors are covered with cellulose acetate films for resisting bacteria, and humidity monitoring ports are provided with carbon nanofiber pads for resisting moisture. The integrated chip converts the sensing data into an electric signal through the analog-to-digital converter, the signal processor and the transmitter and transmits the electric signal to the release module; after receiving the signal, the release module generates micro-current through an electrode to stimulate muscles, and the snoring symptom is inhibited. The shell is covered with a poly-o-phenylenediamine membrane, so that durability is enhanced, and the whole structure is small and portable and suitable for sleep breathing management.

The invention provides an extrascopic rotary bone grinding device for spine endoscopic surgery, and belongs to the technical field of machinery. The extra-scope rotary bone grinding device for the spine endoscopic surgery comprises a handheld part and a driving assembly fixedly connected to the outer end face of the handheld part in a locked mode, and is characterized in that the driving end of the driving assembly is in shaft connection with a shaft rod, a grinding head is integrally manufactured at the outer end of the shaft rod, a plurality of grinding teeth are arranged on the peripheral face of the grinding head in a staggered mode, and a toothed trephine is arranged at the outer end of the grinding head; the outer wall of the shaft rod is sleeved with a protective outer sleeve, a liquid injection component is arranged on the inner layer of the protective outer sleeve, a scrap capturing component is integrally manufactured between the inner wall of the protective outer sleeve and the outer wall of the shaft rod, the inner ring wall of the scrap capturing component is in interference fit with the outer wall of the shaft rod, and one end of the interior of the scrap capturing component is in clearance fit with the outer wall of the grinding head. And in cooperation with the protective outer sleeve, the liquid injection component and the debris capturing component, the accuracy, safety and convenience of bone tunnel expansion operation in the spine endoscopic surgery can be effectively improved.

The application discloses a night tooth grinding detection and grading method based on multi-modal signal fusion, which acquires multi-modal physiological signals including at least electromyographic signals, body movement signals and sound signals, and respectively carries out pretreatment to extract electromyographic intensity features, body movement intensity features and acoustic features; an adaptive threshold is constructed based on the electromyographic intensity features, and the adaptive threshold is dynamically adjusted in combination with the body movement intensity features to detect suspicious tooth grinding segments; the acoustic features are further fused to confirm the suspicious tooth grinding segments, determine a tooth grinding event; and the tooth grinding event is graded and output according to intensity features, duration features and multi-modal consistency features of the tooth grinding event; the application effectively reduces the false alarm rate, improves the accuracy and stability of the night tooth grinding detection through the multi-modal signal fusion and the adaptive threshold judgment mechanism, and has good practical value.

The utility model discloses a mandible isolation tongue block structure, which comprises two belt rings respectively sleeved on first molars on two sides of a mandible; the connecting rod is arranged on the tongue side, the two ends of the connecting rod are connected with the two bands respectively, and the connecting rod has a radian bent in the arrangement direction of the teeth of the lower jaw; the tongue block is arranged on the tongue side, and the tongue block is vertically arranged on the connecting rod and used for isolating tongue muscles. The mandible isolation tongue blocking structure designed by the utility model is an appliance capable of relieving the thrust of tongue muscles to the mandible. The tongue blocking structure for isolating the lower jaw is convenient and fast to use, can effectively eliminate the cause of the reverse jaw problem caused by the low tongue position, is very suitable for being used by children with poor habits of the low tongue position, has high clinical value, and is suitable for clinical popularization and use.

This item is a teething ring that babies can bite, grind, or chew on. As shown in the left and right side views, this teething ring can be placed upright on a table or other surface.

1. Name of the Design Product: Teething Ring (Cartoon Car Remote Control). 2. Use of the Design Product: For babies to grind their teeth. 3. Design Key Points of the Design Product: The combination of shape and pattern. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

1. The name of the design product: Oxford cloth pet toy (coffee). 2. The use of the design product: used for pets to gnaw and play, to relieve boredom and grind teeth, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.

1. Name of the product in this design: Teether (Cloud). 2. Purpose of this design: for soothing, teething, and playing with infants and young children. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

To provide a facing crown capable of making the strength of an upper jaw front tooth equal to the occlusal force of a molar, and a wax cover capable of efficiently shaping a wax pattern formed in the process of manufacturing the facing crown.SOLUTION: A facing crown 30 to be attached to an upper jaw front tooth 11 is provided with a metal frame 32, and a step part 34 with which the top part of a lower jaw front tooth 21 is brought into contact is formed on the tongue side of the metal frame 32 when attached to the oral cavity. In a wax cover 40 used when the facing crown 30 is manufactured, a molding stepped part 45 having a shape similar to the shape of a stepped part 34 of the metal frame 32 is formed in a cutting edge part 44 of the wax cover 40.SELECTED DRAWING: Figure 1

1. Name of the product in this design: Teether (Biscuit). 2. Purpose of this design: Infant teething. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

1. Name of the product in this design: Dog chew (TZ-0246). 2. Purpose of this design: This design is for pet dogs to grind their teeth, clean their teeth, and play with. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of the design product: teething pacifier (BHD-AF01). 2. The use of the design product: teething pacifier. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 2.

This invention belongs to the field of computer-aided diagnostic technology, specifically a real-time diagnostic method and system for bruxism based on non-verbal audio feature recognition. The invention includes: acquiring audio in a sleep environment; converting non-stationary signals into short-time stationary signals through frame segmentation; extracting multiple time-domain and frequency-domain features from the audio samples, and summarizing the variance and mean distribution feature groups by combining multiple feature arrays from each different frame; and optimizing the best predictive model for bruxism diagnosis using a machine learning model. This invention can accurately identify the occurrence of bruxism and other sleep states in complex sleep environments without requiring additional computational resources for preprocessing such as noise reduction and filtering of the audio signals. It enables non-contact monitoring and diagnosis of bruxism with a simple process, avoiding patient discomfort while providing practical reference and theoretical analysis for subsequent interventions for bruxism.

The application provides a tooth grinding navigation method, system and storage medium, comprising the following steps: registering to obtain a coordinate conversion relationship between any two of a CT three-dimensional coordinate system, a reference plate three-dimensional coordinate system and an optical three-dimensional coordinate system; calibrating a tooth extraction handset; constructing and optimizing an oral cavity anatomical structure segmentation learning model; segmenting oral cavity CT real-time three-dimensional data; selecting a three-dimensional model of a tooth to be treated in a tooth CT three-dimensional model; obtaining a real-time relative position between the tooth to be treated and the tooth extraction handset; and updating the three-dimensional model of the tooth to be treated in real time according to a running path of a pin tip, and eliminating three-dimensional voxels on the three-dimensional model of the tooth to be treated that coincide with the running path of the pin tip. The oral cavity anatomical structure segmentation learning model can provide assistance for analysis based on oral cavity CT real-time three-dimensional data, and real-time poses of a handset tracker and an oral reference plate collected by a binocular navigator are used to realize visual tooth grinding.

1. Name of the product in this design: Teething stick (Sichuan pepper wood 4-6). 2. Purpose of this design: A teething stick for infants and young children to use during the early stages of tooth growth. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design.

The utility model discloses an anterior tooth reverse jaw corrector. The anterior tooth reverse jaw corrector comprises an upper jaw base and a lower jaw base, the lossy spiral expansion device is mounted in the middle of the upper jaw base plate; the two sides of the upper jaw base plate are each provided with one jaw pad, and the jaw pads cover upper jaw rear teeth; the two ends of the long arrow snap ring are embedded in the upper jaw base plate, and a sleeving and hanging part in the middle of the long arrow snap ring corresponds to the outer side of the upper jaw base plate; and the adjacent hook ball clamp is provided with a retention hook which is attached and fixed outside the molar and / or the canine. The anterior tooth reverse jaw corrector provided by the utility model is suitable for various stages such as deciduous teeth, mixed dentition, initial constant dentition and the like, solves the problem that the conventional corrector comprising the hyperbolic reed is easy to break, is high in safety performance, and can effectively correct the anterior tooth reverse jaw condition of various age stages.

1. The name of the product under this design: Teether (Ice Cream Cone). 2. Purpose of this design product: for use as a teething gel for children. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

A method for displaying sleep and grind data involves displaying, on a display of a computer device, a comparison between 1) sleep data and grind data corresponding to a period when a dental splint was not being used by a person, and 2) sleep data and grind data corresponding to a period when a dental splint was being used by the person, wherein the sleep data was generated from heart rate data collected from a wearable heart rate sensor and is associated with a splint presence indicator (SPI) that corresponds to when the heart rate data was collected from the wearable heart rate sensor, the grind data was generated from motion data collected from a wearable motion sensor and is associated with an SPI that corresponds to when the motion data was collected from the wearable motion sensor, and the comparison is generated using the associated SPIs.

1. The name of this design product: Teether to prevent chain from falling off. 2. The purpose of this design product: used for baby teething and fixing clothes and teething rings to prevent them from falling. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

1. The name of the design product: tooth gel (mushroom). 2. The use of the design product: used for infant pacification, teething and play. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A mandibular advancement device with enhanced stability, including an upper tray assembly formed by an upper moldable component and an upper bracket, and a lower tray assembly formed by a lower moldable component and a lower bracket. The upper bracket and the lower bracket each extend a front wall from their front side edges near the labial side, while at least the lower bracket extends a rear wall along the median sagittal plane from the rear side edge near the lingual side. The stability is achieved by inclining the front wall of at least the upper bracket towards the lingual side. The rear wall of the lower bracket works in conjunction with the front wall to clamp the lower dental arch. Additionally, the stability feature includes a molar clamping section, further enhancing the overall stability of the mandibular advancement device.