14 results about "Arch form" patented technology

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.

The present invention relates to a posterior chamber phakic IOL (1) having an inherent arch height (89A) independent of its external diameter (81), and a method for manufacturing such an IOL (1).

The utility model discloses an inverted arch formwork anti -floating device, it includes inverted arch formwork block, extrusion board: the inverted arch formwork block sets up at the downside of extrusion board, the upside of extrusion board is fixedly connected with square block no.

The utility model discloses a muscle function training device, including deep coincidence appliance and opening and closing appliance, deep coincidence appliance includes first enclosure and first biteplate, first enclosure is the arch that matches the dental arch, first biteplate is provided in the central position of the inside of first enclosure, the width of first biteplate is less than the width of first enclosure, and the width of first biteplate is less than the width of first enclosure. The first biteplate can only be occluded by anterior teeth and cannot be occluded by posterior teeth; the opening and closing appliance comprises a second enclosure and two second biteplates, the second enclosure is in an arch shape matched with the dental arch, and the two second biteplates are symmetrically arranged at the two ends of the inner side of the second enclosure, so that the second biteplates can only be occluded by the rear teeth and cannot be occluded by the front teeth. According to the muscle function training device disclosed by the utility model, special training of deep folding or opening and closing can be carried out according to the actual condition of a patient, and the correction and training effects are improved.

The present invention concerns a bite-type orthodontic device comprising an arched (2) elastic main body, in a single body, comprising: an occlusal end wall (5) of arched shape comprising an outer arched perimeter and an inner arched perimeter; - at least one of: • an arched outer wall (10), projecting from the occlusal wall (5) along said outer perimeter; • an arched inner wall (11), projecting from the occlusal wall (5) along said inner perimeter; characterized by the fact that each inner (10) and / or outer (11) wall has a pair of notches (20) positioned in such a way as to divide said wall into a central zone 25 of said arch, also called the premaxilla zone, and two peripheral zones (30) of said arch, also called the maxilla zones.

An occlusal seating device for orthodontic aligners, the body of which consists of two semi-autonomous arches, namely an upper arch (1) and a lower arch (2), which have spine-like interdental projections (3). The arches are interconnected in the rear distal part through pillars (4) and in the front by a flexible fusion. On the body of the seating device or at the ends of the spine-like interdental projections (3) buffer pressure points (6) are located for the application of a seating stick or an extraoral vibration source. Between the upper arch (1) and the lower arch (2) inter-arch vestibular connections (7) are located, the course of which is vestibularly convex. The body of the occlusal seating device has a shape complementary to the occlusal part of the upper and lower teeth of the patient with an invisible orthodontic aligner fitted.

An archform configured to move a patient's teeth using non-sliding mechanics. The archform can include a loop between two bracket connectors that spans a blocked-out tooth between two teeth. One or more of the bracket connectors can include a reinforced shoulder to provides increased structural integrity to the connection between the bracket connector and the loop. The archform can include a second loop between the two connectors that is gingivally or occlusally positioned relative to other loop.

Provided is a method for generating an orthodontic teeth alignment shape for the orthodontic treatment of a patient. According to the present invention, there is provided a method for generating an orthodontic teeth alignment shape, the method including the steps of: acquiring a patient's teeth shape information; extracting specific points of respective teeth within a given range of at least one of the patient's upper and lower jaws, based on the acquired teeth shape information; comparing the patient's arch form produced by connecting the specific points to one another with a plurality of standard arch forms stored in a database; selecting the standard arch form that is most similar to the patient's arch form from the plurality of standard arch forms stored in the database, based on the comparison result; and generating the orthodontic teeth alignment shape based on the selected standard teeth alignment form.

The invention relates to an invisible correction device for bidirectional jaw regulation and control. Comprising an upper jaw appliance body and a lower jaw appliance body, the upper jaw appliance body comprises a first body part, a first protruding part and an arch expanding part which are integrally formed, and a first guiding inclined face is arranged behind the first protruding part; the lower jaw appliance comprises a second body part and a second convex part which are integrally formed, and a second guide inclined surface is arranged in front of the second convex part; the first guide inclined surface and the second guide inclined surface are attached to each other when the user occludes the jaw, and the first lug boss and the second lug boss jointly guide the functional retreat of the lower jaw; the arch expanding part is provided with an arch structure attached to the palate of a user, the upper surface of the arch structure abuts against the palate of the user and acts on dental crowns on the two sides in the transverse direction, expanding force is provided for the left side and the right side at the same time, and therefore the maxillary dental arch is expanded. Through the integrated and complete-cycle correction system, the limitations of overlong treatment course, poor correction experience, jaw bone and dentition control separation and the like in the existing two-stage correction mode are overcome.

The application discloses a steel pipe arch bridge arch rib support-free segmental arch forming method, which comprises the following steps: S1, hoisting each arch joint to an installation position, temporarily consolidating two arch joints symmetrically arranged in the transverse bridge direction to form an arch rib unit G i ; S2, hingedly connecting two adjacent arch rib units G i ; S3, connecting a lifting device with the arch rib unit G i , simultaneously arranging the sliding support at the rear end of the arch rib unit G i and the arch rib unit G i+1 , and arranging a pushing device at the rear end of the arch rib unit G i+1 ; S4, lifting the rear end of the arch rib unit G i to a design height by the lifting device, and synchronously pushing the rear end of the arch rib unit G i+1 by the pushing device; S5, welding and fixing the hinge connection position of the arch rib unit G i and the arch rib unit G i+1 ; S6, moving the lifting device to the hinge connection position of the next arch rib unit, and repeating steps S3 to S5 until the arch rib is formed. The application can reduce construction difficulty, risk and construction cost in the arch forming stage, and is suitable for arch forming construction of a large-span arch bridge with a large rise.

The utility model discloses a conversion fixture for false tooth processing, which belongs to the technical field of dental medical instruments and comprises an arch-shaped block fixedly connected with a clamping groove of the fixture, one end, far away from the clamping groove, of the arch-shaped block is fixedly connected with a positioning groove, and the positioning groove is fixedly connected with a processing material; the arch-shaped block comprises an arc-shaped end and a straight end, the arc-shaped end is fixedly connected with the clamping groove, and the straight end is fixedly connected with the positioning groove; the arc-shaped end is fixedly connected with an angle positioning block, and the angle positioning block abuts against the edge of the clamping groove so as to limit the angle of the arc-shaped block. According to the utility model, the processing material and the clamp are connected through the arch-shaped block, so that the functionality and the stability of the clamp are improved, the utilization rate of the processing material is also improved, the production cost is reduced, and the processing efficiency and the processing precision are improved.