651results 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 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.

An archwire (10) is located in a lumen (12) of a self-ligating orthodontic bracket (14) or molar tube. The archwire (10) has a non-rectangular cross-section comprising two opposite pairs of substantially right-angled edges connected together by respective connecting edges. The archwire (10) engages with opposite sides of the lumen (12) in the orthodontic bracket (14) or molar tube. In the preferred embodiment, the non-rectangular cross-section (16) comprises a non-regular hexagon.

Embodiments relate to the methodology of direct manufacture of a customized labial / lingual orthodontic tube by using a ceramic slurry-based additive manufacturing (AM) technology. For example, a method of manufacturing customized ceramic labial / lingual orthodontic tubes by additive manufacturing may comprise measuring dentition data of a profile of teeth of a patient, based on the dentition data, creating a three-dimensional computer-assisted design (3D CAD) model of the patient's teeth, and saving the 3D CAD model, designing a virtual 3D CAD tube structure model for a single labial or lingual tube structure based upon said 3D CAD model, importing data related to the 3D CAD tube structure model into an additive manufacturing machine, and directly producing the tube with the additive manufacturing machine by layer manufacturing from an inorganic material including at least one of a ceramic, a polymer-derived ceramic, and a polymer-derived metal.

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.

An orthodontic appliance may include an archwire and multiple orthodontic brackets. The archwire may fit within a human mouth and contain multiple male connectors. Each orthodontic bracket may have a configuration that facilitates attaching the orthodontic bracket to a single tooth. Each orthodontic bracket may allow one of the male connectors to be locked into the orthodontic bracket with a snapping action. The male connector may be unable to slide with respect to the orthodontic bracket after being locked in the orthodontic bracket. A manual unlocking action may allow the male connector to disengage from the orthodontic bracket.

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.

The present disclosure is directed to a dental appliance. The dental appliance includes a first band adapted for mounting about a first tooth, such as a second molar, the first band having a mesial hook facing toward a root of the first tooth. A second band is included, the second band adapted for mounting about a second tooth, such as a premolar, wherein the second band has a distal hook facing toward a crown of the second tooth. A spring is secured to, and extends between, the distal and mesial hooks. The spring may be a nickel titanium coil spring and have a length of about 13 mm. Other embodiments include a supportive rigid bar, a bi-lateral arrangement, and a method of applying the dental appliance.

An indirect orthodontic bonding (IDB) tray preloaded with one or more orthodontic brackets with uncured pre-pasted adhesive. The loaded IDB tray can be produced by an IDB tray manufacturer and distributed to an orthodontist in a container that prevents the adhesive from curing. The loaded IDB tray can be removed from the container when the patient is ready for treatment. The loaded IDB tray can be placed over the dental arch of the patient such that the one or more orthodontic brackets can bond, via curing of the adhesive, to the teeth of the patient.

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.

A method of manufacturing customized ceramic labial / lingual orthodontic brackets by digital light processing, said method comprises measuring dentition data of a profile of teeth of a patient, wherein measuring dentition data is performed using a CT scanner or intra-oral scanner, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model on a computer, designing a 3D CAD bracket structure model for a single labial or lingual bracket structure, importing the 3D CAD bracket structure model into a Digital Light Processing (DLP) machine, directly producing the bracket by layer manufacturing.

An orthodontic hook includes a base pad, and a hook body having a connection part projecting from the base pad and a cantilevered part being cantilevered over the base pad such that a slot is formed. A first extremity is at maximum extension along the cantilevered part, a second extremity of the end part being maximally proximate to the base pad, the end part forming a protrusion having a tapered shape and tapering to the second extremity, and a ninth distance between the second extremity and a top surface of the end part is larger by at least 2.4 times than a fifth distance between the first extremity and the top surface of the end part.

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.

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.

An orthodontic hook includes a base pad, and a hook body having a connection part projecting from the base pad and a cantilevered part being cantilevered over the base pad such that a slot is formed. A first extremity is at maximum extension along the cantilevered part, a second extremity of the end part being maximally proximate to the base pad, the end part forming a protrusion having a tapered shape and tapering to the second extremity, and a ninth distance between the second extremity and a top surface of the end part is larger by at least 2.4 times than a fifth distance between the first extremity and the top surface of the end part.

An auxiliary tube is arranged at one end of a bracket body, and a ligation wing is arranged at the other end of the bracket body; wherein a penetrating notch is machined in the middle of the auxiliary tube, the auxiliary tube is divided into two sections by the notch, the two sections are a left section tube and a right section tube respectively, and the elastic arch wire can selectively penetrate through the left section tube and the right section tube at the same time or penetrate through the notch from the left section tube or the right section tube. The auxiliary tube is divided into two parts, the notch for penetration is formed in the middle of the auxiliary tube, and the auxiliary tube is matched with the double-hole tube or the corner at the top of the tube, so that the penetration latitude of the elastic arch wire is large, the operation is more flexible, and the clinical difficulty is greatly reduced; the device has the characteristics of unique conception, simple structure and easiness in operation.

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.

The present invention relates to an orthodontic appliance (1) adapted to fit the maxilla of a patient comprising A) at least one central retractor (2) incorporating an expansion screw (4) allowing its retraction and the subsequent retraction of the maxillary arch (MA) of the patient, which central retractor (2) is integral with: A1) A first symmetrical pair of posterior retention arms (5), each retention arm (5) being coupled to a ring (3) of a first pair of rings (3) allowing the appliance (1) to be fixed to the right and left permanent molars of the maxillary arch (MA) of the patient, at least one of the rings (3) also constituting the distal element of a distalization assembly (12) comprising at least two elements, A2) At least one symmetrical pair of anterior retention arms (8) which bears against the palatal surface of teeth anterior to the right and left molars to which the first pair of rings (3) are fixed right and left;A3) A second symmetrical pair of posterior retention arms (6), each retention arm (6) being formed of two distinct segments with a first segment coupled to a ring (3) of the first pair of rings (3) and a second segment coupled to the central spreader (2), which first and second segments are associated by a joint (7).