250 results about "Arch wires" patented technology

The invention discloses a double-arch-wire correction system with high connection stability. The double-arch-wire correction system comprises a first arch wire, a second arch wire, a lock cover, a bracket, a pressing wing and an elastic pin shaft, in a wearing state, the elastic pin shaft is in a reset state, the elastic pin shaft drives the pressing wing to act on the lock cover, and the lock cover is tightly buckled on the bracket. In the daily feeding process of a patient, the locking cover on each tooth position is firmly locked on the bracket, so that the locking cover is not easy to loosen due to the stuffing of food residues. In addition, even if the appliance is worn for a long time, dental calculus is not easy to accumulate around the pressing wings, so that the pressing unlocking of the appliance is easier; meanwhile, due to the fact that the pressing wing pries the lock cover from the bottom through rotation, the two sides of the lock cover need to be pinched by hands and pulled out forcibly in the past, the lock cover can be driven to be separated in a more labor-saving mode, a doctor only needs to slightly press the pressing wing to complete unlocking, convenience is remarkably improved, the pain of a patient is relieved, and the time beside a revival chair is shortened.

The invention discloses a biomechanical self-ligating bracket, and belongs to the field of biomechanical self-ligating brackets, the biomechanical self-ligating bracket comprises an arch-shaped base, the upper end of the arch-shaped base is fixedly connected with a base, the upper end of the base is connected with a bracket wing assembly, the upper end of the base is connected with a limiting assembly, and the interior of the bracket wing assembly is connected with an anti-opening assembly. According to the key points of the technical scheme, by arranging a limiting assembly, when the arch wire slides in the designed direction (forward sliding), namely, the arch wire slides from back to front, a sliding block keeps in contact with the lower portion of the arch wire under the elastic force of a spring, the thrust of the arch wire is decomposed into normal force and tangential force, the friction resistance of the arch wire is small, and when the arch wire slides in the reverse direction, the sliding block is dragged by the friction force to slide along a sliding groove; the spring is stretched, the clamping block is finally wedged into the clamping groove, and the friction resistance of the arch wire is increased, so that the sliding block forms a self-locking effect, and the situation that teeth are difficult to move in a preset direction due to reverse sliding of the arch wire is prevented.

The utility model relates to an orthodontic appliance and orthodontic system with traction locking function, which comprises a main body part and a cover body part, the main body part is provided with an arch wire groove, two sides of the arch wire groove form a first working wing and a second working wing, the main body part is provided with an assembling groove, and the assembling groove is used for detachably arranging a traction piece. The traction piece comprises a traction section, a connecting section and an adapting section which are connected in sequence, the adapting section is matched with the main body part, at least part of the connecting section is located in the assembling groove, a locking part is arranged on the connecting section in a protruding mode, and the locking part corresponds to the arch wire groove so as to be used for directly or indirectly limiting the arch wire. Therefore, the first orthodontic appliance does not move relative to the arch wire or moves a small distance, and the orthodontic efficiency can be improved. When the traction function does not need to be used, the whole traction piece can be detached from the assembling groove.

The utility model discloses an orthodontic bracket capable of reducing friction force, which is characterized in that single-side oblique angles are arranged on the near, far and middle opening sides of a main arch wire groove, the two single-side oblique angles are arranged in parallel, a horizontally arranged transition groove is formed between the two single-side oblique angles of the main arch wire groove, and the transition groove is communicated with the main arch wire groove. The oblique angles are arranged on the near, far and middle opening sides of the main arch wire groove, so that the contact between the dental arch wire and the side wall of the main arch wire groove is changed from linear contact to point contact, the contact area between the dental arch wire and the groove of the main arch wire groove is reduced when teeth incline and move, and the dental arch wire ligature structure has the advantages that the dental arch wire ligature structure is simple in structure and convenient to use. The friction force between the teeth is reduced, the anchorage is saved, and the tooth moving efficiency is improved; the transitional groove is formed in the main arch wire groove, so that the bracket can be quickly positioned during clinical operation, the bracket is ensured to be positioned in the middle of teeth, and doctors in the industry can accept and master the bracket more easily.

The invention provides an invisible orthodontic appliance assembly and a mounting method and application thereof, the invisible orthodontic appliance assembly is used for treating twisted teeth, and the invisible orthodontic appliance assembly comprises an invisible orthodontic tooth socket at least comprising a twisted tooth part, a first adjacent tooth part and a second adjacent tooth part; a local grinding area is arranged at the torsion tooth part, and the surface of the torsion tooth is exposed; the torsion tooth correction assembly comprises a self-ligating bracket, a first arch tube, a second arch tube and an arch wire, wherein the self-ligating bracket is fixed on the surface of a torsion tooth; the first arch tube is arranged on the surface of the first adjacent tooth part, and the second arch tube is arranged on the surface of the second adjacent tooth part; the arch wire comprises a fixed end and a free end, the fixed end is fixed in the first arch tube, and the free end is accommodated in the second arch tube; the middle part of the arch wire is fixed in the self-ligating bracket to form a locking state, and the resilience force generated by the deformed arch wire is used for correcting the twisted teeth. Through the synergistic effect of the invisible orthodontic tooth socket, the self-ligating bracket, the arch tube and the arch wire, efficient orthodontic of twisted teeth is realized.

The invention relates to the field of orthodontics, in particular to a device for controlling palatal root movement of anterior teeth of an upper jaw and a manufacturing method. According to the device, the traction arm and the traction ring which extend to the palatal side of the anterior maxillary teeth are additionally arranged on the basis of the transverse palatal bar and are matched with the traction buckle of the anterior maxillary teeth to guide orthodontic force to act below a tooth impedance center, so that root control movement which is difficult to achieve by a traditional orthodontic method is realized, bending torque on an arch wire or placing other root control devices is not needed, and the whole device is simpler and more attractive; in addition, the device part is manufactured by adopting a 3D printing technology, firstly, tooth and intraoral soft tissue data of a patient are obtained by scanning the interior of an oral cavity, then the oral scanning data are matched with CBCT, a specific device is designed by using software, finally, a finished product is directly printed in a 3D manner, the transverse palatal bar and the traction buckle are completely matched with the tooth surface by adopting the 3D printing technology, and the comfort level is high.

The invention discloses a bending and forming device and a bending and forming process for a high-resilience arch wire, the bending and forming device comprises a straight long-strip mold, the long-strip mold is provided with an arch wire accommodating groove suitable for accommodating the straight arch wire, and the long-strip mold is suitable for being bent into an arch with a plurality of bent parts under the action of external force. After the arch wire is placed in the straight long-strip mold, the long-strip mold and the arch wire are bent together, so that the long-strip mold and the arch wire jointly form an ideal arch shape. In the invention, as the arch wire and the long-strip mold are bent together, the risk of pulling the arch wire is avoided, the diameter of the long-strip mold is thicker, the arch wire is easier to bend by a manipulator, and the arch wire is formed by one-step bending, so that the arch wire is bent more quickly and stably compared with the previous method that the arch wire is roughly bent firstly and then is bent into a groove, and the bending efficiency is improved. And the arch wire bending efficiency and effect are obviously improved.

The utility model discloses a self-ligating bracket which comprises a bracket body and a lock cover, one side of the bracket body is used for bonding a tooth surface, the other side of the bracket body is provided with an arch wire groove, one side, provided with the arch wire groove, of the bracket body is provided with a sliding groove, and the lock cover is installed on the bracket body in a sliding mode through the sliding groove. One end of the lock cover is located at a notch of the arch wire groove, an elastic piece is installed on the side, close to the bottom of the sliding groove, of the lock cover, and an arc-shaped limiting block is elastically arranged on the elastic piece. Limiting grooves matched with the arc-shaped limiting blocks are formed in the positions, located at the bottoms of the sliding grooves, of the bracket body; when the arc-shaped limiting block is clamped into the limiting groove, the arc-shaped limiting block is in a natural state. The application has the effects of reducing the situation of locking and unlocking failure of the lock cover and guaranteeing the treatment progress.

The invention discloses a removable and wearable self-locking double-arch-wire correction system, which belongs to a fixed correction system and can be applied to tongue side correction or lip side correction. The device comprises a first arch wire, a second arch wire, a lock cover, a bracket and a self-locking mechanism, the first arch wire and the second arch wire are connected to the upper faces of the lock covers in a penetrating mode at the same time, a lock cover containing cavity is formed in the upper face of the bracket, the self-locking mechanism can be an active self-locking mechanism or a passive self-locking mechanism, the lock covers are fixedly locked in the bracket through the self-locking mechanism, and the first arch wire and the second arch wire are not in contact with the bracket. According to the invention, the problem of inaccurate correction force expression caused by the fact that the arch wire needs to provide clamping force is solved, and the problem of clearance angle caused by untight matching of the arch wire and the bracket is also avoided, so that arch wire data can be completely expressed; the covering area of the lock cover is large, the locking effect is good, the influence and limitation on unlocking are smaller, and meanwhile the wearing stability and the taking-off and wearing comfort of the arch wire are guaranteed.

The invention provides a spiral expansion device capable of expanding an arch bidirectionally, and relates to the technical field of medical instruments. The mounting block and the arch wire are of hollow structures, holes of the mounting block and the arch wire are communicated, a baffle is movably arranged on one side, facing the tongue, of the mounting block and the arch wire, a water pipe wrapping the fixing block is arranged at one end, connected with the fixing block, of the arch wire, a plurality of water outlet holes are formed in the water pipe, and water enters the mounting block by pressing the baffle and then is sprayed to the surfaces of the tooth fixing blocks through the arch wire and the water pipe for cleaning. A self-cleaning system without external power is constructed, food residues of the expansion device are efficiently removed through a dual cleaning mechanism (jet-pulse propulsion), bacterium breeding is effectively inhibited, the cleaning process is simplified, and the use compliance of a patient is remarkably improved.

Hybrid orthodontic archwire designs are disclosed. Hybrid archwires may have bracket-archwire sections and interproximal archwire sections in which each section can vary in cross-section shape, size, and / or material properties. Bracket-archwire sections may be configured to promote torque control and may have rectangular cross-sections. Interproximal archwire sections may be configured to be bent into force-promoting loops and may have round cross sections. Each archwire section may be straight or bent into any shape. Hybrid archwires may have sliding sections and non-sliding sections. Non-sliding sections may have male connectors configured to prevent the archwire from sliding relative to the orthodontic brackets and / or may have cross-sectional shapes, sizes, or coatings that resist sliding relative to sliding sections. Sliding sections may have linear archwire segments. Hybrid archwires may have distal or posterior non-sliding sections and an intermediate anterior or medial sliding section.

The utility model discloses an orthodontic bracket. The orthodontic bracket comprises a bracket body, a bracket bottom and an arch wire, the bracket body comprises a groove. And the bracket bottom is connected with the bracket body. And the arch wire is arranged in the groove. The projection in the direction perpendicular to the width direction of the orthodontic bracket is a projection plane, the projection of the groove on the projection plane is a first projection plane, the length of the uppermost end of the first projection plane is larger than that of the lowermost end of the first projection plane, and when the arch wire is connected with the groove, the arch wire is arranged close to the lowermost end of the groove. Through the arrangement, the contact area of the arch wire and the groove can be reduced, so that the friction force of the arch wire and the groove is reduced, the time required for adjusting the front-back relation of the teeth and adjusting the aesthetic orthodontic points of the teeth in the second stage is shorter, and the orthodontic correction efficiency of the teeth is further improved.

The utility model discloses a band straight wire arch buccal tube forceps or pincers belongs to oral cavity orthodontic instrument technical field. Including two clamping arms, wherein: the clamping end of first clamping arm is equipped with the insertion end head, its cross section shape and the cross section of buccal tube arch wire channel match, can accurate insertion channel, the clamping end of second clamping arm is equipped with plane clamping part, its plane structure and the plane of buccal tube outside or downside surface are pasted, form the two -way clamping mode of insertion positioning clamping and plane support clamping. The insertion end head end is the passivation round angle structure, and the safety of convenient insertion and improvement is used, and the plane clamping part surface can be equipped with antiskid line to enhance friction. The utility model discloses through the structure cooperation design, solved the problem of traditional forceps clamping buccal tube when easy to slip, the operation unstable problem, has improved the clamping precision and clinical operation efficiency obviously, can be adapted to different models buccal tube, is applicable to the accurate installation of buccal tube in orthodontic treatment.

The utility model discloses a bow wire torque angle measuring device for measuring the size of the torque angle of the bending on the bow wire. The device comprises: an angle measuring scale, a clamp seat and a connecting base; the surface of the clamp seat is provided with a bow wire accommodating groove, one end of the bow wire accommodating groove abuts on the origin of the angle measuring scale, the extension direction of the bow wire accommodating groove is directly opposite to the origin of the angle measuring scale, and the reading is along the direction directly opposite to the angle measuring scale, so that the size of the torque angle on the bow wire can be accurately read. After the corresponding torque is bent, the doctor places the bow wire on the device to read the torque angle, and judges whether the torque of the bow wire is within the preset range through the reading. Therefore, after using the device, the accurate torque angle can be bent on the bow wire, the influence of the error of manual bending on the force expression effect of the bow wire is avoided, the force of the bow wire is more accurate, the correction effect is more delicate, and the treatment period is shortened.

The utility model discloses an active and passive annular locking plate self-ligating bracket, which comprises a bracket matrix provided with an arch wire groove, and further comprises an annular locking plate provided with an arc section and a concave section which are connected in sequence to form an annular structure with an opening, and an annular locking plate provided with an arc section and a concave section which are connected in sequence to form an annular structure with an opening, an annular groove is further formed in the portion, on the periphery of the arch wire groove, of the parent body, the annular groove is provided with a first annular groove opening, a second annular groove opening and an annular groove first transition section, and the groove width of the annular groove first transition section is larger than that of other portions of the annular groove. And the annular locking plate can rotate in the annular groove. The bracket disclosed by the utility model has the advantages that the bracket is simple in structure and convenient to lock, and active self-locking and passive self-locking can be realized at the same time.

The invention discloses a flip cover self-ligating bracket, which belongs to the technical field of orthodontic treatment, and comprises a bracket body, a flip cover and a pin shaft, the bracket body is provided with a bottom plate, a groove and a first buckle part, the flip cover is provided with a second buckle part matched with the first buckle part, and the bracket body and the flip cover are respectively provided with a hinge hole. And the pin shaft is arranged in the two hinging holes in a penetrating manner, so that the turning cover can rotate relative to the bracket body. In a locking state, the first buckling part and the second buckling part are mechanically matched and locked, the turning cover is limited to rotate, and the groove is closed; in the unlocking state, external force drives the buckle to be separated through the unlocking groove, the turning cover rotates to be opened, and the groove is completely exposed. The bracket adopts a flip-type structure to replace a slide rail design of an existing sliding cover type bracket, so that the size is greatly reduced, foreign body sensation of a wearer is reduced, the comfort level is improved, meanwhile, the problem that a switch lock is unstable during chewing is avoided, stable constraint of an arch wire is ensured, the correction effect is guaranteed, and the bracket is convenient to operate and adapts to clinical orthodontic treatment requirements.

The invention discloses a self-adjusting orthodontic force bracket device for orthodontics, and relates to the technical field of orthodontics. The device comprises a base, a bracket, a sliding fin and an arch wire, the bracket is located on the base, the sliding fin is arranged on the bracket in a sliding mode, a groove is formed in the bracket, the arch wire is arranged in the groove in a clamped mode, and an adjusting assembly is arranged in the bracket; the adjusting assembly comprises a power assembly and a moving assembly; power can be transmitted to the moving assembly through the power assembly, the moving assembly can control the sliding wing piece and the bracket to move, and therefore the situation that manual adjustment is low in operation efficiency can be avoided, and the purpose of automatic adjustment is achieved; the ejector rod is driven to reset through the supporting plate by means of the elastic force of the first spring, the inserting block is driven to move reversely to be inserted into the inserting groove through the connecting rod to lock the third rotating shaft, and therefore the situation that the third rotating shaft rotates can be avoided, and the locking purpose is achieved.

The utility model discloses an orthodontic bracket. The orthodontic bracket comprises a bracket body, a bracket bottom and an arch wire, the bracket body comprises a groove. And the bracket bottom is connected with the bracket body. And the arch wire is arranged in the groove. The bracket body comprises a bracket wing, the bracket wing is connected with the groove, a projection plane perpendicular to the width direction of the orthodontic bracket is defined, and an included angle between the lowest part of the bracket bottom and the lowest part of the bracket wing is greater than or equal to 2 degrees and less than or equal to 8 degrees. Through the arrangement, an operator can quickly remove redundant adhesive, so that the bonding efficiency of the orthodontic bracket and teeth is improved.

To provide an arch wire for orthodontics that can reduce pain and discomfort during orthodontic treatment by using a low-rigidity wire. [Solution] The orthodontic archwire 10 has a loop portion 30 formed in a predetermined shape to enable loop mechanics, and is made of a superelastic material selected from the group consisting of nitinol, titanium-molybdenum alloy (TMA), and gum metal, which have a Young's modulus of 100 GPa or less. When the loop portion is activated, a force that slowly returns to its original shape acts continuously on the target tooth, physiologically promoting tooth movement and reducing pain during treatment, and further reducing the risk of complications due to excessive force, such as root resorption and damage to periodontal tissue.

The utility model discloses an orthodontic traction mechanism which comprises a molar denture and an incisor denture, the front side of the molar denture and the front side of the incisor denture are respectively welded with a fixed plate limiting head, and the front side of the molar denture is rotatably connected with an arc-edge fixed plate I through the fixed plate limiting heads; the front side of the incisor tooth support is rotatably connected with a second arc-edge fixing plate through a fixing plate limiting head, the front side of the first arc-edge fixing plate is fixedly connected with a vertical positioning head, the front side of the second arc-edge fixing plate is fixedly connected with a transverse positioning head, and the left side of the vertical positioning head and the bottom of the transverse positioning head are fixedly connected with traction positioning bent rods; according to the utility model, pulling force is applied to the teeth through the traction arch wire, the teeth are pulled back to the correct position, and under the action of the nickel-titanium tension spring and the traction rubber band, extra traction pulling force except the traction arch wire is obtained between the teeth, so that the aim of further accelerating the traction speed of orthodontic treatment can be achieved.

The application belongs to the technical field of nanomaterials, and particularly relates to a graphene oxide composite nanocoating, application thereof and modified dental metal material. The obtained graphene oxide composite nanocoating overcomes the problem of easy agglomeration of GO alone, has the advantages of long-term antibacterial property, strong corrosion resistance, low toxicity, good remineralization effect on dental enamel, reduced occurrence of dental demineralization and dental caries, effectively reduced friction between dental metal materials, especially between metal materials for orthodontic treatment, is conducive to the sliding between arch wires and bracket grooves in the orthodontic process, and further conducive to improving the efficiency of aligning and flattening the dental arch in orthodontic treatment and shortening the treatment course. In addition, the application has the characteristics of simple operation, low cost and strong controllability, and provides a simple and universal strategy for preparing dental metal materials with long-term antibacterial property, corrosion resistance, low toxicity, good remineralization effect and low friction.

The utility model relates to a deciduous tooth orthodontic self-locking orthodontic appliance, which relates to the technical field of medical instruments and equipment, and comprises an orthodontic appliance main body, the middle of the main body is provided with a transverse through arch wire groove, the notch side is provided with a locking plate in sliding connection with the main body, and the locking plate can slide along the surface of the main body to open or close the arch wire groove. The surface of the main body is a smooth curved surface and is provided with a limiting groove. And through the design of a sliding groove, a clamping groove, a guide part, an elastic steel needle and a guide groove, the stability and operation convenience of the locking plate are ensured. In addition, the corrector is further provided with a shifting groove, a bottom plate, a net bottom and a special geometrical shape design, so that the wearing comfort and the correction effect are improved. The purposes of simplifying the operation process and improving the comfort level and the correction effect of the patient are achieved.

The utility model relates to the technical field of dental brackets, in particular to a dental orthodontic bracket which comprises a bracket main body, a placement groove is formed in the bracket main body, an arch wire is arranged in the placement groove, two first sealing rings are arranged in the bracket main body, and the inner sides of the two first sealing rings are attached to the side surface of the arch wire; the sealing ring is arranged on the side face of the arch wire, two second sealing rings are arranged on the inner side of the sealing ring, the inner sides of the two second sealing rings are attached to the side face of the arch wire, two fixing plates are fixedly arranged on the side face of the sealing ring, three limiting rods are fixedly arranged at the top end of the bracket body, and a threaded rod is rotationally connected to the top end of the bracket body. The device has the beneficial effects that the device is convenient for sealing the connecting part of the placing groove and the arch wire, the probability of bacterium breeding at the connecting part of the placing groove and the arch wire is reduced, and the tooth decay probability of a patient is convenient to reduce.

The utility model relates to the technical field of tooth orthodontics, and discloses an orthodontic nickel-titanium square wire arch bracket which comprises a bracket body, an arch wire groove used for installing a square wire arch is formed in the bracket body in the width direction of the bracket body, an installation groove communicated with the arch wire groove is formed in the bracket body in the length direction of the bracket body, and an upper cover is arranged in the installation groove in a sliding mode. Sliding grooves are formed in the side walls, opposite to the mounting groove, of the upper cover in the length direction of the upper cover, sliding blocks sliding in the corresponding sliding grooves are arranged on the two sides of the upper cover, a first fixing piece used for fixing the upper cover is arranged in the mounting groove, and a second fixing piece used for fixing the upper cover is further arranged in the bracket body. Through the above structure, the upper cover is fixed for multiple times, even if the first fixing part loses efficacy, the second fixing part can fix the upper cover, and the upper cover cannot be separated from the upper cover mounting groove, otherwise, when the second fixing part loses efficacy, the first fixing part can fix the upper cover, and the upper cover cannot be separated from the upper cover mounting groove; therefore, the fixing effect of the square wire arch in the arch wire groove is better.

The application belongs to the technical field of archwire correction, and provides a nickel-titanium alloy archwire with high elasticity and precise root control and a preparation method thereof. The nickel-titanium alloy archwire with high elasticity and precise root control comprises an archwire body, the archwire body comprises a nickel-titanium alloy base body, Nb and Zr, and the molar ratio of Ni to Ti in the nickel-titanium alloy base body is 50.8:49.251.2:48.8. The application also provides a preparation method of the nickel-titanium alloy archwire with high elasticity and precise root control. The application solves the core problems that the elasticity and strength of the traditional nickel-titanium alloy archwire are difficult to be considered together and the root control precision is insufficient in orthodontic treatment. The elasticity recovery rate of the archwire is greater than or equal to 98%, the yield strength is increased to 850 MPa-950 MPa, and the archwire has differential surface roughness, which can meet the high elasticity demand in the initial alignment stage of teeth and realize the precise control of the tooth root position in the fine adjustment stage, is suitable for the whole period treatment of oral orthodontics, and has extremely high clinical application value.

The invention relates to a method for controlling an orthodontic appliance comprising a set of brackets fixed to a dental arch of a patient, in a first arrangement of the brackets, and a first archwire attached to the brackets, the method comprising the following steps: 1') receiving a first bracket representation representing the brackets in the first arrangement of the brackets; 2') evaluating, by means of a computer, based on the first bracket representation, the compatibility of the first arrangement of the brackets with an archwire to be tested that is intended to be attached to the brackets after the first archwire; 3') depending on the compatibility, displaying an information message by means of the computer.