516results about "Arch wires" patented technology

The present invention discloses an orthodontic appliance and a manufacturing method thereof. The orthodontic appliance includes: a fixing member and an orthodontic wire; the fixing member is used to be fixed on the tooth surface, and the orthodontic wire has a plurality of curved structures for releasing orthodontic force. The orthodontic wire is an elastic member with elasticity, and the orthodontic wire and the fixing member are detachably buckled and connected. This appliance can accurately control the amount of tooth movement, precisely quantify the acting force applied to the local and overall teeth; greatly save the time of patients and doctors, significantly reduce the medical cost, and greatly improve the convenience of orthodontics; this manufacturing method has a short production time, high production efficiency, greatly saves the manufacturing process steps, and reduces the medical cost.

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 invention discloses a draw hook for orthodontics, which belongs to the technical field of orthodontics and comprises a C-shaped mounting seat, a telescopic rod is fixed on the C-shaped mounting seat, and an anti-separation head is in threaded connection with a telescopic part of the telescopic rod. A first threaded hole is formed in the end face of the telescopic part, a second threaded hole is formed in the side wall of the telescopic part, and the anti-disengaging head can be in threaded connection with the first threaded hole or the second threaded hole. The C-shaped installation base can be well attached to a cylindrical installation foundation, the installation stability of the traction hook is further improved through the design of the anti-skid lines, and horizontal sliding or angle inclination of the traction hook is prevented; the first threaded hole is formed in the end face of the telescopic part, and the second threaded hole is formed in the side wall of the telescopic part, so that the direction of the anti-disengaging head can be changed, and the traction requirements of more correction devices are met.

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 utility model discloses a dental system which comprises a force application platform with a first action point, a second action point which is arranged at an interval with the force application platform, and a connecting piece which is connected with the first action point and the second action point, when the dental system is worn in an oral cavity, maxillary teeth and mandibular teeth clamp the force application platform, and the force application platform is connected with the connecting piece. The second point of action directly or indirectly contacts the teeth, and the connector generates an acting force between the first point of action and the second point of action. The force application platform is clamped between the upper jaw teeth and the lower jaw teeth, extra discomfort cannot be brought to a patient, the position of the force application platform in the oral cavity is stable, anchorage can be effectively increased, and stable acting force can be provided.

A process for manufacturing a retainer, said process comprising the following steps: a) at an update time, after the end of an orthodontic treatment, acquiring at least one two-dimensional image of at least one portion of a dental arch of a user, called the “updated image”, by means of an image-acquiring apparatus; b) generating a digital three-dimensional model representing the dental arch of the user, called the “updated model”, based on the updated image; c) designing, based on the updated model and preferably by computer, a retainer suitable for keeping teeth in their configuration at the update time; d) manufacturing the retainer.

An orthodontic appliance comprises a combination of pre-made and custom elements to provide treatment versatility with minimized costs and time delays. The appliance comprises a pre-made arch member segment elastically deformed to removably attach to coupling units bonded to teeth. The appliance also comprises a connection module to further elastically deform the arch member segment to generate motive forces or to just connect separate arch member segments in variations. In another embodiment the appliance comprises pre-made connectors having one end attached to a tooth and another end elastically deformed to attach to an arch component. The attachment to teeth comprises coupling units bonded to teeth in variations. The arch components, coupling units, and connection modules may be custom made to match surfaces inside the mouth. Motive forces may be generated by the elastic deformation of the arch member segment, connectors, arch component, or connection module to align teeth.

Orthodontic brackets are disclosed. An orthodontic bracket is formed such that the body and mesh portions are formed integrally in one piece, and the tooth-side mounting surface includes bonding elements that have an undercut angle to the mounting surface. The bonding elements can further include geometry to facilitate the spreading of bonding material. In some aspects, the bracket can also comprise elements for wire-mounting and aligner tray interaction. A system and methods of treatment are further disclosed. The bracket can be customized for an individual patient.

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.

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.

Devices, systems and methods for dental arch expansion. A polymeric shell including teeth receiving cavities may be shaped to impart an arch expansion force onto a first tooth of one or more teeth to move the one or more teeth from a first position a first distance from a midline of the arch to a second position a second distance from the midline of the arch, the second distance being greater than the first distance. An occlusal feature extending outward from an occlusal wall of a tooth receiving cavity may be configured to contact an outer occlusal surface of an opposing appliance to impart an anti-tipping force onto the first tooth. The anti-tipping force may be of a magnitude and direction to counteract a tipping moment generated at least in part due to the arch expansion force.

Methods for fabrication of intraoral appliances are provided. In some embodiments, a method includes receiving a digital representation of a patient's dentition; receiving a treatment plan for the patient's dentition; generating a digital model of an intraoral appliance configured to implement at least one treatment stage of the treatment plan, where the intraoral appliance includes a cellular structure including a network of interconnected unit cells; and providing instructions to fabricate the intraoral appliance based on the digital model, where the instructions are configured to cause fabrication of the intraoral appliance from a plurality of additively manufactured layers.

Wire attachment dental appliances. A shell may be shaped to receive teeth of a dentition. The shell may include an attachment material reservoir that is configured to accept an attachment material therein. A wire attachment member may be configured to be secured to the shell. The attachment material reservoir and the wire attachment member may be aligned along an arch line of the shell in a manner that allows a wire to simultaneously pass through the attachment material reservoir and engage with the wire attachment member.

The application belongs to the technical field of oral orthodontic medical instruments, and discloses a system of invisible appliance convertible position rigid anchorage accessory and an assembling method thereof. The embedded rigid anchorage accessory comprises an oral commonly used light-cured resin accessory body and a metal framework integrally embedded in the interior of the accessory body. The metal framework has an anchoring section completely embedded in the accessory body and an anchor-shaped connecting section extending out of the surface of the accessory body. The anchor-shaped connecting section is configured as a barb-shaped or T-shaped structure suitable for accommodating a ligation wire and forming a mechanical lock, and has a bidirectional force control function. The application constructs an absolute anchorage system without relative displacement between teeth and implant anchorage, avoids side effects caused by insufficient anchorage or poor patient cooperation in traditional elastic traction, and only needs to grind off the anchor-shaped connecting section on the surface of the accessory body after the anchorage structure completes the function, so as to become a standard vertical rectangular accessory to play a role.

Orthodontic bracket (10) comprising a body having a base intended to be fixed to the external surface of a tooth and a vestibular part intended to retain an orthodontic archwire (13) extending in a generally mesio-distal direction, characterized in that it comprises a housing (111) at least partly open on said base to open onto said tooth when said base is fixed on the external surface of said tooth, and intended to receive an adhesive material defining, once hardened, a retention pad for an orthodontic splint, a separation rib projecting from the base, placed on the periphery and in the extension of said housing (111), configured to separate the adhesive material intended to be received in said housing (111) from the adhesive material intended to be received on the rest of said base, and a folding groove (114) on the vestibular part, transverse to the latter, and opposite said housing (111).Abstract Figure: Figure 5.

The utility model relates to the technical field of orthotics, in particular to an elastic traction ring for an invisible orthodontic device, which comprises an outer rubber ring, an inner traction ring and a reinforcing rib are sequentially arranged on the outer rubber ring from outside to inside, and the outer rubber ring with a circular groove and the inner traction ring with a storage groove are inserted into the circular groove, so that the stability of the whole structure is improved, and the stability of the whole structure is improved. The reinforcing ribs are further inserted into the storage grooves, so that the overall toughness is improved, the situation that traction, fixation and matching of the position of the invisible orthodontic device are affected by overall breakage caused by long-time use is avoided, the multiple anti-skid ferrules are arranged, the contact area of the outer rubber ring is increased, and then the friction force of contact between the outer rubber ring and the invisible orthodontic device is increased; the orthodontic treatment matching of teeth is realized, the overall combination and installation are convenient, and the service life is long.

The utility model discloses an orthodontic molar extension and remote movement device which comprises a pair of fixing blocks used for being fixed on the outer side walls of adjacent molars, the side walls, facing the gum, of the two fixing blocks are jointly connected with an elastic assembly, and the tail end of the elastic assembly is provided with a fixing assembly used for fixing the elastic assembly on the gum. The elastic assembly is a continuous bent metal wire, the metal wire is divided into two sides, the metal wire on each side comprises a fixing block connecting section connected to the side wall of the fixing block, the other end of each fixing block connecting section is connected with an elastic bent section, the other end of each elastic bent section is connected with a gum connecting section, and one ends of the gum connecting sections on the two sides are jointly connected with a lantern ring. According to the utility model, the stress supporting point of the extension and remote movement molar is adjusted to the gum, the adjacent molar is not influenced, the two molar can be adjusted at one time, and the orthodontic time can be greatly shortened and the orthodontic efficiency can be improved when the orthodontic appliance is combined with an invisible orthodontic appliance for common use.

An orthodontic post and pin system for secure attachment of a dental appliance to an alignment wire, which also facilitates quick and easy removal and replacement. The system described herein uses a "twist-lock" dental post that is rotated onto, and counter-rotated off of, an alignment wire. The dental post includes structural elements to facilitate the twist-lock functionality, as well as structures for accepting a. fastener to secure the alignment wire in place and inhibit unintentional or undesired dislodging.

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 present invention relates to a method and a system for manufacturing a retaining wire (11), said retaining wire (11) having a shape which is folded along the lingual surface of a set of teeth (12). To this end, a wire that is made of a shape-memory material and has a rectangular cross-section comprising a plurality of braided strands is assembled in the groove of a mould, said groove defining said folded shape. The shape-memory material is then activated.

The utility model relates to a self-locking bracket which comprises a bracket body, a locking plate, a lock cylinder and a lantern ring, an arch wire groove is formed in the bracket body, a first working wing and a second working wing are arranged on the two opposite sides of the arch wire groove, the locking plate is arranged on the second working wing in a sliding mode, a locking groove is formed in the bottom face of the locking plate, and a mounting hole is formed in the second working wing. The lantern ring is at least partially or completely contained in the mounting hole and does not stretch into the locking groove of the locking piece, the lock cylinder is columnar, one end of the lock cylinder is arranged in the lantern ring, and the other end of the lock cylinder protrudes out of the lantern ring and is arranged in the locking groove of the locking piece. Compared with a traditional scheme, the lock cylinder is additionally sleeved with the lantern ring, the sum of the outer diameter size of the lantern ring and the outer diameter size of the lock cylinder is larger than the outer diameter size of an independent lock cylinder, the size of the installation hole can be designed to be larger, and the installation hole can be formed in an injection molding mode or a direct drilling mode. Therefore, the difficulty of forming the mounting hole in the second working wing can be effectively reduced, and the mass production efficiency is further improved.