12 results about "Orthodontic archwire" patented technology

The invention belongs to the technical field of new material detection, and discloses an orthodontic correction arch wire friction corrosion test system, which comprises a controller, a mechanical excitation device and an electrochemical workstation, and is characterized in that the controller controls the electrochemical workstation to apply polarization pulses to form an ion sheath for neutralizing friction charges; the method comprises the following steps: firstly, carrying out mechanical damage and electrochemical response on the surface of a material, then controlling a mechanical excitation device to apply single instantaneous mechanical scratch, immediately triggering an electrochemical workstation after the scratch is finished, and recording an electrochemical relaxation transient process of spontaneous repassivation of the surface of the material in a static environment without mechanical interference. The technical problem that the dynamic repairing capacity of the material cannot be accurately evaluated due to signal aliasing in an existing continuous friction test is solved, and the obtained data is no longer a fuzzy average value but a clear dynamic fingerprint containing rich physical mechanisms.

The invention relates to the technical field of orthodontics, in particular to a buccal side embedded canine tooth traction guide plate and a traction method thereof.The traction guide plate comprises a fixing end and a traction end, the fixing end is of a rectangular structure, the fixing end is fixed to an orthodontic bracket and an orthodontic arch wire on rear teeth through metal ligature wires, and the traction end is connected with the metal ligature wires. A traction end is mounted on the side, close to the embedded teeth, of the fixed end, the traction end is of a bent arc-shaped structure, a first traction position and a second traction position are arranged on the traction end, and the traction end is connected with a traction site bonded to the embedded canine teeth through an elastic rubber chain so as to pull the embedded canine teeth; according to the invention, the arc-shaped traction end with the first traction position and the second traction position is designed, the first hook is utilized to realize inclined movement of the embedded canine from the embedded position to the target area in the first stage, and the plurality of second hooks are utilized to realize vertical positioning and fine position adjustment of the teeth in the second stage; the accuracy and controllability of a tooth moving path are improved, and the treatment period is shortened.

The utility model provides a non-invasive anterior tooth depressing correction device for realizing anterior tooth adduction, which is used for applying depressing force downwards through deformation force of the device so as to restrain vertical extension of anterior teeth, and comprises a frame, a first end fixing buckle, a second end fixing buckle, a first elastic ring, a second elastic ring and a fixing part, the first end fixing buckle and the second end fixing buckle are connected to the two ends of the frame respectively and used for being fixed to an orthodontic arch wire. The fixing part is arranged in the middle of the frame, the first elastic ring is arranged on the first side of the frame and located between the first end fixing buckle and the fixing part, and the second elastic ring is arranged on the second side of the frame and located between the second end fixing buckle and the fixing part.

An apparatus and method for bending or shaping orthodontic archwires of other medical devices into a complex, patient individual shape is described. The apparatus comprises of two moveable, compact, manipulators with, in total, at least one revolute joint defining at least one rotation axes and at least one prismatic joints defining at least one translation axes; Gripping tools are provided on the manipulators.

The application discloses an orthodontic arch wire evaluation method based on coplanar isogonal vectors, and relates to the field of orthodontic arch wire bending evaluation. The application is based on a set of bending point information of a theoretical orthodontic arch wire curve after spatial transformation, a set of bending point information of an actual orthodontic arch wire curve after spatial transformation, judges the isogonal point distance of the orthodontic arch wire, then combines the judgment of the isogonal vector angle and the maximum included angle between the coplanar isogonal vector group of the orthodontic arch wire and a base vector, and establishes an orthodontic arch wire evaluation method based on coplanar isogonal vectors. The application effectively improves the efficiency of the parameterized evaluation of the orthodontic arch wire, realizes the quantitative evaluation of the orthodontic arch wire by calculating the isogonal point distance of the actual orthodontic arch wire curve, the isogonal vector angle and the maximum included angle between the coplanar isogonal vector group of the orthodontic arch wire and the base vector.

The utility model relates to the field of orthodontics, and provides an orthodontic clamp which comprises a clamp handle. The forceps beak is connected with the forceps handle, the forceps beak is provided with a pair of opposite clamping faces, the pair of clamping faces are used for clamping an orthodontic arch wire, and the pair of clamping faces are arranged to be of matched step structures so that the orthodontic arch wire can be bent to form a step curve. According to the arrangement, the forcep beaks of the orthodontic forceps are designed to be step-shaped, and an orthodontic doctor can directly realize forming of a step curve in the mouth by applying force once, so that the problems of tooth torsion, extension, pressing, inward and outward entering and the like are solved. The orthodontic arch wire can be directly operated in the mouth without dismounting the orthodontic arch wire, the defects of time waste and the like caused by operation outside the mouth are avoided, the operation steps are simplified, the operation efficiency is improved, the operation convenience is improved, and the treatment experience of a patient is improved.

This utility model discloses an orthodontic appliance with easy retention, including an orthodontic archwire. Multiple appliances are mounted on the archwire, and each appliance includes an appliance base. Elastic clips are fixedly connected to both side walls of the appliance base. Multiple grooves are formed on the front side of the appliance base, and multiple protrusions are fixedly connected to the front side of the appliance base. An appliance support block is fixedly connected to the back side of the appliance base, and an archwire groove for placing the archwire is formed on the side wall of the appliance support block. This utility model, through the synergistic effect of the protrusion and groove structure of the appliance base and the elastic clips, forms a mechanical fit with the tooth surface, greatly enhancing the retention force between the appliance and the teeth, effectively reducing loosening and displacement of the appliance in the oral cavity, and improving the stability and accuracy of orthodontic treatment.

The invention discloses a bending parameter determination method for orthodontic arch wire bending planning, and relates to the technical field of orthodontics, and the method comprises the following steps: obtaining tooth micro-motion data and occlusal force data of a target object; performing space-frequency domain joint processing on the tooth micro-motion data and the occlusal force data to generate a micro-motion time sequence; and performing adaptive segmentation on the micro-motion time sequence according to the tooth micro-motion data, and performing mathematical modeling in an adaptive segmentation result according to the tooth micro-motion data to generate micro-motion segmentation features. According to the scheme, the sliding window feature analysis is performed on the micro-motion time sequence of the tooth micro-motion data, and the change points are identified in combination with the adaptive threshold sequence, so that the candidate segmentation points are automatically generated, the local density calculation is performed in the neighborhood of the candidate segmentation points, and whether the effective segments are formed or not is judged according to the preset judgment threshold, and the accuracy of the tooth micro-motion data is improved. Therefore, self-adaptive segmentation is completed, and local mutation and discontinuity of tooth position micro-motion can be accurately captured.

The present application provides a kind of orthodontic arch wire forming cutting device, including machine frame, the machine frame is provided with by first motor driven wire feeder, by second motor driven variable diameter component, by third motor drive eccentric wheel, the machine frame is transversely provided with wire tube in the left and right sides of the wire feeder, the machine frame is transversely slidably fitted with horizontal moving piece, first connecting rod is hinged between the horizontal moving piece and the eccentric wheel, the machine frame is elastically and slidably fitted with inclined block, and the inclined block is provided with cutting knife on the horizontal moving piece, the machine frame is provided with with the horizontal moving piece connection ration pouring mechanism.The present application has the advantages that: can automatically form dental arch wire, so that the dental arch wire is cut off and falls into the receiving frame, the ration driving assembly is driven once, after the repeated number of times, the ration driving assembly releases the lower cover plate, and the ration dental arch wire slides and pours, without manual counting.

An orthodontic bracket (10) comprising a body having a base for securing to an outer surface of a tooth and a vestibular portion for holding an orthodontic arch wire (13) extending in a generally mesial-distal direction, characterized in that the orthodontic bracket comprises a cavity (111) at least partially open on the base, the cavity (111) being configured to receive the orthodontic arch wire (13) from the base. The invention relates to an orthodontic appliance comprising a base (11) having a cavity (111) for accommodating an adhesive material which opens into the tooth when the base is fixed to the outer surface of the tooth and which, upon curing, forms a holder for an orthodontic appliance, and a separating rib protruding from the base, placed on the outer contour of the cavity (111) and within the extension thereof, the device comprises a cavity (111), a vestibular portion (114) arranged to separate the adhesive material intended to be received in the cavity (111) from the adhesive material intended to be received on the rest of the substrate, and a bent groove (114) on the vestibular portion, transverse to the vestibular portion, opposite the cavity (111).

The invention discloses a multifunctional accessory assembly for orthodontics and an invisible correction system. The multifunctional accessory assembly for orthodontics comprises an accessory body and an anti-overflow strip, the accessory body is provided with a bonding bottom surface and a smooth raised outer surface; an adaptive groove is formed in the bonding bottom surface, and when the body is bonded to the surface of the tooth, the adaptive groove is closed to form a functional channel; and the outer surface is not provided with wing-shaped protrusions and is used for being tightly attached to the invisible orthodontic appliance. And the anti-overflow strip is arranged in the adaptive groove in advance, prevents the adhesive from overflowing during bonding, and is drawn out after bonding to form a clean hollow channel. According to the invention, an orthodontic arch wire or a towing hook can penetrate through the functional channel to carry out auxiliary fixed correction, and free switching between an invisible correction mode and a fixed correction mode can be realized without grinding off accessories, so that the retention force of invisible correction is ensured, the damage to enamel caused by repeated disassembly of the accessories is avoided, and the clinical operation is simplified.

The invention discloses an orthodontic arch wire bending automatic calibration system and method based on a U-shaped standard part, and belongs to the field of orthodontic medical instrument manufacturing. According to the method, a U-shaped standard part with a specific geometric topology is adopted, and high-precision calibration is realized through a double-layer geometric leveling process including parallelism and coplanarity adjustment in combination with left and right U-shaped mirror image calibration based on an operator coordinate system. The system supports a factory and user dual-calibration mode, and adopts a database which takes the wire diameter, the material, the U-shaped inner diameter and the bending direction as four-dimensional process identification for parameter management, so that the uniqueness and traceability of a parameter group are ensured. The problem that systematic geometric control over a U-shaped structure is insufficient in the prior art is solved, the bending precision and consistency of the orthodontic arch wire and the long-term stability of equipment are remarkably improved, the parallelism precision and the coplanarity precision are improved by more than 50% through tests, and the bilateral symmetry consistency is improved by about 70%.