25 results about "Incisor" patented technology

A mold for a dental appliance includes a dental arch portion and a beam. The dental arch portion is associated with teeth of a user. The dental arch portion includes a first distal portion, a second distal portion, and an incisor portion disposed between the first distal portion and the second distal portion. The beam extends from the first distal portion to the second distal portion. The beam includes a label portion disposed between the first distal portion and the second distal portion. The label portion forms a label for identification of the mold.

The utility model relates to the technical field of dentistry. The utility model relates to a muscle agonist for linked correction of upper and lower teeth. The muscle agonist comprises an upper invisible tooth socket and a lower invisible tooth socket, wherein the upper invisible tooth socket is sleeved outside upper teeth; the lower invisible tooth socket is sleeved outside lower teeth; the incisor part of the lower invisible tooth socket is detachably connected with the incisor part of the upper invisible tooth socket; the occlusal surface at the molar position of the lower invisible tooth socket is connected or detachably connected with the occlusal surface at the molar position of the upper invisible tooth socket through a V-shaped bent connecting strip; an angle forming plate is clamped between the upper invisible tooth socket and the lower invisible tooth socket, and the angle forming plate is positioned on the occlusal surface of at least one of the upper invisible tooth socket and the lower invisible tooth socket. According to the utility model, by optimizing the structure of the muscle agonist, the upper invisible tooth socket can be conveniently matched with upper teeth, and after the upper invisible tooth socket is matched with lower teeth, the incisor part of the lower invisible tooth socket is detachably connected with the incisor part of the upper invisible tooth socket, so that the alignment of an upper jaw and a lower jaw is realized, and the correction of dentition deformity of relative protuberance of the upper jaw and retroduction of the lower jaw is realized.

The utility model discloses a trachea cannula incisor protective sleeve, which belongs to the technical field of incisor protective sleeves and comprises an upper protective sleeve, a lower protective sleeve is arranged below the upper protective sleeve, a fixing frame is arranged on the outer side of the lower protective sleeve, two limiting blocks are slidably connected to the inner wall of the fixing frame, and a limiting column is slidably connected to the inner wall of each limiting block. The ends, away from each other, of the two limiting columns are fixedly connected with the inner wall of the fixing frame, and the side faces, away from each other, of the two limiting blocks are fixedly connected with springs. According to the trachea cannula incisor protection sleeve, the inclined moving block can drive the limiting block to move towards the two sides to be opened, meanwhile, the limiting block can extrude the spring when moving, on the contrary, the spring can conveniently assist the limiting block to conduct closing reset, and therefore the opening and closing effect of the limiting block can be controlled under the cooperation of the inclined push plate and the spring; and therefore, the air pipe in the limiting block can be conveniently limited, and the situation that the air pipe shakes during use is avoided.

The invention relates to the technical field of orthodontic tooth movement in animal experiments, in particular to a mouse orthodontic tooth movement model and a construction method thereof, and the mouse orthodontic tooth movement model comprises a traction assembly and an anchorage nail; the laboratory mouse is provided with a maxillary bone, second molar teeth growing on the maxillary bone and incisors growing on the maxillary bone, first molar teeth of the laboratory mouse are extracted, and an avoiding space is formed in front of the second molar teeth after the first molar teeth are extracted; the anchorage nail is connected to the maxillary bone and is positioned between the second molar and the incisors; the anchorage nail is fixed after being implanted into the maxillary bone, so that the position change of the traction assembly caused by connecting the traction assembly to the incisors can be avoided; the traction assembly is arranged between the second molar and the anchorage nail, the front end of the traction assembly is connected with the anchorage nail, the rear end of the traction assembly can penetrate through the avoiding space and is connected with the second molar, the second molar is used as an experimental moving tooth, and the movement rule of human clinical orthodontic teeth can be better simulated.

The invention relates to a cleaning apparatus, in particular for cleaning surfaces in the mouth, having at least one cleaning device for molars that can be guided over at least one jaw arch, and at least one cleaning device for incisors; wherein actuating devices for the movement of the cleaning devices are provided in the form of actuating rods which extend from the cleaning apparatus to the cleaning device, are extendable and retractable, and can be adjusted with regard to their lateral angle; wherein at least the at least one cleaning device for the molars has at least one clamping device which points toward at least one crown and is extendable and retractable, and is used to fix the cleaning device between two opposing jaw arches and to adjust the distance between the jaw arches.

The invention relates to a cleaning device, in particular for cleaning surfaces in the oral cavity, comprising at least one cleaning device for molars and at least one cleaning device for incisors, which can be guided over at least one dental arch, wherein actuating devices for the movement of the cleaning devices are provided in the form of actuating rods, which extend from the cleaning device to the cleaning device and are extendable and retractable and adjustable in lateral angle, wherein at least the at least one cleaning device for the molars has at least one extendable and retractable clamping device pointing towards at least one tooth crown, for fixing the cleaning device between two opposing dental arches and for adjusting a distance between the dental arches.

This invention discloses a method for determining digital dental malformation torque attachments. First, a digital dental malformation model is established based on the patient's CBCT data. The jawbone and tooth roots are shelled along the normal to obtain a three-dimensional model of the periodontal ligament. Boolean operations between the periodontal ligament and jawbone are used to obtain a digital dental malformation model containing the periodontal ligament. The digital dental malformation model, the constructed attachment model, and the invisible aligner model are assembled to obtain a digital dental malformation finite element simulation model. Then, the digital dental malformation finite element simulation model is meshed, material parameters are defined, and boundary conditions are determined. Finally, the initial tooth displacement and periodontal ligament stress distribution are analyzed based on the constructed digital dental malformation finite element simulation model to determine the safety of the attachment design for the movement of a specific individual incisor and the effectiveness of the torque design. Based on the interpretation results, the attachment design is modified or the attachment design is finalized.

The invention relates to a cleaning device, in particular for cleaning surfaces in the oral cavity, comprising at least one cleaning device for molars and at least one cleaning device for incisors, which can be guided over at least one jaw arch, wherein at least one extendable and retractable biting device is provided, for arrangement between two opposing jaw arches and for adjusting a distance between the jaw arches.

A method is of designing a virtual three-dimensional (3D) model of a mold for a dental appliance. The method includes determining an identifier to be associated with the mold. The mold includes a dental arch portion associated with teeth of a user. The dental arch portion includes a first distal portion, a second distal portion, and an incisor portion disposed between the first distal portion and the second distal portion. The method further includes determining, based on the identifier, a label to be formed in a label portion of a beam of the mold. The method further includes determining a placement of the beam. The beam extends from the first distal portion to the second distal portion in the virtual 3D model of the mold.

The application discloses a double-main-groove three-section multifunctional oral cavity correction system, which comprises self-locking brackets, a first buccal tube, a second buccal tube and an arch wire system. The self-locking brackets are arranged on all incisors, canines and premolars in a tooth system, and the self-locking bracket comprises a bracket body and a bottom plate, and the bracket body and the bottom plate are connected. The application further discloses a double-main-groove three-section multifunctional oral cavity correction method. The application combines the segment arch technology, the auxiliary arch technology and the sliding method gap closing technology, and greatly reduces the friction uncontrolled, the unfavorable alignment and the loss of anchorage in other correction systems, so that the correction result is more controllable.

The application discloses a simulation oral cavity model, relates to the technical field of oral cavity models, and comprises a model base, a middle tooth area corresponding to the middle part of a jaw bone, a molar area corresponding to the two sides of the jaw bone, a middle body installed in the middle tooth area, and incisors and canines installed on the middle body; a stabilizing strip plate is fixedly arranged in the molar area of the model base and is provided with insertion grooves in the two side walls; two side edge bodies are installed with double canines and molars, the bottom of each side edge body is provided with a sliding groove, a clamping block is fixedly arranged on the inner wall of the sliding groove, the stabilizing strip plate can slide into the sliding groove, the clamping block abuts against the inner wall of the insertion groove, and the side edge body can be fixedly installed with the middle body; when the side edge body abuts against the middle body, the side edge body is connected with the side wall of the model base, and the side edge body is connected with the side wall of the middle body. The application has the effects of diversified display of oral cavity pathologies and cost saving.

The utility model discloses an invisible orthodontic appliance with an improved root control structure. The invisible orthodontic appliance comprises an invisible orthodontic appliance body and the improved root control structure, the improved root control structure is arranged corresponding to at least one of the one-third position of the lip face neck area of a single anterior tooth and the one-third position of the mesial adjacent face neck area and / or the distal tooth tip area, and is arranged on the inner surface of a cavity, used for containing teeth, of the invisible orthodontic appliance body. The improved root control structure is a solid structure formed by locally thickening the invisible orthodontic appliance body relative to the inner surface of the cavity to the tooth surface of the anterior tooth, and extends along at least one of the near-far-middle direction and the lip-tongue direction; wherein the anterior teeth are selected from at least one of incisor teeth and canine teeth.

This utility model discloses a protective sleeve for supporting laryngeal surgery, comprising a deformable sheet, a contact pad fixedly installed on the inner side of the deformable sheet, and a protective pad fixedly installed on one side of the deformable sheet. The protective pad includes a buffer layer, a pressure-resistant layer, and a wear-resistant layer. The buffer layer covers one side of the deformable sheet, the pressure-resistant layer covers one side of the buffer layer, and the wear-resistant layer covers one side of the pressure-resistant layer. This utility model involves placing the contact pad on the outside of the patient's upper incisors, with the protective pad facing outwards. The deformable sheet is then pinched against the outside of the upper incisors, allowing the deformable sheet and contact pad to conform to the shape of the patient's upper incisors. At this point, the contact pad is in close contact with the upper incisors, preventing separation. The protective pad blocks the front side of the deformable sheet, and when the upper incisors are used as a support point for the laryngoscope, it isolates the laryngoscope from the upper incisors and provides a cushioning effect, reducing patient discomfort.

This invention discloses a medical anti-displacement temperature measuring dental pad, comprising a dental pad body. The side wall of the dental pad body has an arc-shaped concave groove, and the inner wall of the dental pad body has two C-shaped guide rope holes, located on opposite sides of the arc-shaped concave groove. An installation groove is formed on the inner wall of the dental pad body away from the arc-shaped concave groove. Through the segmented and precise layout of the C-shaped guide rope holes, the rope loop, after passing through the guide rope holes, forms two independent and cooperative fixing points on the inner and outer sides of the incisors. The dual-point fixing structure works synergistically to restrict the dental pad's rotational freedom and displacement space, ensuring the dental pad remains stable and preventing displacement due to unconscious patient movements. Simultaneously, the dual-point fixing structure securely confines the endotracheal tube within the arc-shaped concave groove of the dental pad, ensuring a tight fit between the endotracheal tube and the dental pad. This not only prevents dental pad rotational displacement but also effectively protects the endotracheal tube from being bitten or crushed.

The utility model relates to the technical field of dental implant teaching appliances, in particular to a teaching physiological anatomical model based on severe bone deficiency edentulous jaw, which comprises a model main body for simulating the physiological anatomical structure of the maxillary bone, and a plurality of prefabricated holes are arranged on the model main body. The layout and the direction of the prefabricated holes comprise left and right wing penetrating holes, left single zygomatic penetrating holes, right double zygomatic penetrating holes, right maxillary sinus anterior inclined holes, left transsinus holes, left and right turbinate ridge holes, left and right anterior nasal spinous proximal inclined holes, incisor canal holes and anterior nasal spinous holes; the hole diameter, the hole depth and the inclination angle of each prefabricated hole are set according to the anatomical characteristics of the severe bone deficiency edentulous jaw, and each prefabricated hole is internally provided with a guide channel used for movement of an instrument, so that an operator can practice in the guide channel through the instrument to meet the practice of different dental implant operations. According to the utility model, the planting hole positions are accurately arranged on the model, so that different operation requirements can be met, and the practical operation capability of a doctor in a complex operation scene can be improved.

The utility model relates to the technical field of dentistry. The tooth socket with the expansion and front traction functions comprises a tooth socket base body, and the tooth socket base body comprises a first molar coating part, a first transition connecting part, a middle incisor coating part, a second transition connecting part and a second molar coating part which are connected in sequence; the first transition connecting part and the second transition connecting part are provided with hollow structures; the first molar coating part and the second molar coating part are connected through an expansion arch structure, and the middle part of the expansion arch structure is a bending structure which is arranged in a roundabout manner; traction connecting pieces for front traction are fixed on the lip side of the first molar coating part and the lip side of the second molar coating part, and the traction connecting pieces are limiting buckles or tubular structures. According to the utility model, the structure of the tooth socket is optimized, the arch expansion function is realized through the arch expansion structure, and the front traction function is realized through the traction connecting piece, so that the arch expansion function and the front traction function are integrated on the tooth socket.

The application relates to the technical field of digital oral cavity, and relates to an automatic determination method of tooth feature points, which comprises a data preprocessing stage, in the XOY plane of a global coordinate system, a projection point of a target tooth mass center coordinate, a projection point of a left adjacent tooth mass center coordinate and a projection point of a right adjacent tooth mass center coordinate form a triangle, a center and a radius of a circumscribed circle of the triangle are obtained, a local coordinate system is established, feature points of the target tooth are determined, the tooth is divided into canines, incisors and molars, and the molars are divided into premolars and molars; and a protrusion point of a mesial and distal surface of the target tooth is determined. The application can be realized through a computer program, and then the feature points of each tooth can be automatically obtained after the tooth model is imported into the computer.

The invention discloses an orthodontic device for oral sleep, which belongs to the technical field of oral orthodontics, and comprises an upper occlusal pad and a lower occlusal pad which are respectively sleeved on upper and lower teeth; the upper occlusal pad and the lower occlusal pad are connected through a memory springback metal wire; the two sides of the outer sides of the upper occlusal pad and the lower occlusal pad are respectively provided with a memory springback metal wire; the memory springback metal wire is U-shaped, and two ends of the memory springback metal wire are respectively bent from molars to incisors and embedded in the upper occlusal pad and the lower occlusal pad; memory alloy metal sleeves are embedded in the two sides of the outer side of the lower occlusal pad; the lower end of the memory springback metal wire penetrates through the memory alloy metal sleeve; a metal wire with scale marks is fixedly embedded in each of the two sides of the outer side of the lower occlusal pad, and the end, away from the memory springback metal wire, of the self-memory alloy metal sleeve is connected with the memory alloy metal sleeve in a penetrating mode. The device has the advantages of being low in adjustment difficulty, small in wearing burden and not prone to loosening.

A kind of dental appliance is provided with multiple rings for being sleeved in deciduous teeth or permanent teeth and as fixed point, connecting device, traction hook for traction permanent teeth to be corrected, tongue bar for forming with the resistance area of tongue to avoid the forward extension of tongue and fixing hook for being fixed with permanent teeth to be corrected, ring is fixedly connected with the connecting device, traction hook is fixedly connected with at least one ring, tongue bar is fixedly equipped in connecting device and is located in the lingual side of incisor, and fixing hook is buckled with traction hook by connecting piece.The dental appliance forms multiple tension fixed points, corrects permanent teeth to be corrected, improves the force stability of permanent teeth to be corrected, and reduces the stress of other teeth, reduces the risk of deciduous teeth loosening and falling off.Moreover, the dental appliance forms the resistance area of tongue with the tongue bar, avoids the inadvertent forward extension of tongue, and further avoids the bad habits such as tongue extension, licking teeth, sucking fingers and primary tongue spitting, so as to improve the correction effect.

Device (100) for a hand-operated therapeutic jaw exercise, comprising: a lower mandibular arch plate (102) configured to apply force to the incisors of a mandibular arch; a quadrant plate (104) which supports the lower mandibular arch plate (102) for rotation about a pin (106) which is mounted on a stand of the quadrant plate (108); a rod (110) connecting the lower mandibular arch plate (102) to the quadrant plate (104); a yoke (112) that engages with the bar (110) to form a Scotch yoke mechanism; a rack (114) which extends integrally from the yoke (112) and is provided with teeth; a pinion (116) that engages with the rack (114) to form a rack and pinion mechanism; and a pinion (116) wherein the pinion (116) engages with the rack (114) to form a rack mechanism; a hand lever (118) extending from a central shaft of the pinion (116) and supported by a hand lever stand (120), wherein a rotation of the hand lever (118) actuates the pinion (116) to move the rack (114) back and forth, the yoke (112) slides and the quadrant plate (104) is rotated around the pin (106), thereby opening the lower mandibular arch plate (102) in a circular arc and enabling locking in any angular position for therapeutic jaw exercises.

The invention provides a construction method and application of an intermittent force correction mouse model, and the method comprises the following steps: S1, fixing a mouse: fixing the head of the mouse after anesthesia, and exposing an anterior tooth area; s2, tooth separation: separating incisor teeth on two sides; s3, copper wire placement, wherein the pre-bent copper wire with the specific diameter is placed between the incisor teeth on the two sides; s4, shape adjustment: adjusting the position of the copper wire to ensure that the copper wire is located at the incisor gingival papilla, and reserving an incisor end function space; s5, coating a self-acid etching adhesive on the tooth surface; s6, carrying out light curing; s7, fluid resin fixing and shaping, wherein the copper wires are wrapped with the fluid resin through stacking and shaping; s8, photocuring lasts for a certain time, and the incisor teeth of the mouse are expanded to a preset distance; the animal model provided by the invention can not generate serious acute inflammatory reaction and can avoid excessive compression on periodontium, and the intermittent force correction mouse model without inflammatory reaction constructed by the invention can meet specific research and treatment requirements.

The utility model relates to a tooth correcting device with a flat guide structure. The tooth correcting device comprises an upper correcting device, a flat guide correcting mechanism and an upper tooth correcting mechanism, the upper tooth correction mechanism comprises a canine tooth sleeve, an anterior incisor tooth sleeve, a lateral incisor tooth sleeve and a molar tooth sleeve; the canine tooth sleeve is fixedly arranged on the upper appliance; the anterior incisor socket is fixedly arranged on the upper appliance; the side cutting tooth socket is fixedly arranged on the upper appliance; the molar sleeve is fixedly arranged on the upper appliance; the parallel guide correction mechanism comprises a parallel guide correction block; the parallel guide correcting block comprises a parallel guide correcting surface and a parallel guide supporting surface; the parallel guide correction surface is horizontally arranged; the flat guide supporting surface is vertically arranged; the problem that an existing parallel guide correction block and the appliance are arranged in a split mode, so that the parallel guide correction block is prone to falling off is solved, and meanwhile the problem that the existing parallel guide correction block is uneven in stress is solved.

The present application belongs to an improved orthodontic device and its treatment method for bimaxillary protrusion. The problems to be solved are: the difficulty in anchorage control, the large side effect of molar loss and the patient's discomfort and complicated operation during the treatment of bimaxillary protrusion. The technical points are: the upper and lower central incisors, lateral incisors, canines and first permanent molars are bonded with ordinary transmission appliance brackets; the upper and lower circular wire main arch wires are in circular arc shape, with two small loop curves and two backward bends, passing through the slot of the ordinary transmission appliance bracket; the upper front tooth retraction coil connects the small loop curve on the upper circular wire main arch wire and the lower anchorage molar; the lower front tooth retraction coil connects the small loop curve on the lower circular wire main arch wire and the upper anchorage molar. The orthodontic method comprises the following steps: step A, bracket bonding; step B, arch wire bending; step C, elastic coil installation; step D, treatment process. It is suitable for the orthodontic treatment of bimaxillary protrusion cases.

The present application discloses a traction type mouthpiece and a production method thereof, wherein the traction type mouthpiece comprises a mouthpiece body, an accommodating groove for accommodating a dental crown is formed in the mouthpiece body, the accommodating groove comprises molar fixing grooves on both sides and a correction groove connected with the molar fixing grooves. The molar fixing grooves are matched with the shape of the dental crown of the molar and are used for fixing the mouthpiece body on the dental crown. The correction groove is used for guiding the canine and incisor, the correction groove and the canine and incisor leave a translation and torsion space, the correction groove is a guide rail type arc structure, the side wall of the correction groove is a smooth curved surface, and the smooth curved surface of the correction groove is consistent with the curvature of the dental arch. The present application focuses on the guidance of the teeth of children and meets the correction needs of the teeth of children.

The invention relates to a cleaning device, in particular for cleaning surfaces in the oral cavity, comprising at least one cleaning device for molars and at least one cleaning device for incisors, which can be guided over at least one dental arch, wherein actuating devices for the movement of the cleaning devices are provided in the form of actuating rods, which extend from the cleaning device to the cleaning device and are extendable and retractable and adjustable in lateral angle, wherein at least the at least one cleaning device for the molars has at least one extendable and retractable clamping device pointing towards at least one tooth crown, for fixing the cleaning device between two opposing dental arches and for adjusting a distance between the dental arches.