Orthodontic draw hook for bodily movement of teeth and orthodontic device

Abstract

The invention discloses an orthodontic draw hook for bodily movement of teeth and an orthodontic device. The orthodontic draw hook comprises a hook body, a base part and a retention part, wherein the hook body, the base part and the retention part are columnar, and the retention part is inserted into a vertical pipe in a tooth bracket in a plugging way; two ends of the base part are vertically connected with the hook body and the retention part respectively to form a step shape; the base part is positioned on a horizontal step surface, and a hook is arranged at the top end of the hook body; the lower end of the retention part is a deformation end which is subjected to annealing treatment, and the deformation end penetrates the vertical pipe to be bent. According to the orthodontic draw hook, the two ends of the base part are vertically connected with the hook body and the retention part respectively to form the step shape, the retention part is inserted into the vertical pipe in the tooth bracket in a plugging way to fix a draw hook, and the base part is clung to the upper part of the bracket. When the hook at the top end of the hook body is subjected to drawing force in one direction, the action point of the drawing force closes to the center of resistance of target teeth, so that the teeth fixed by the bracket generate a bodily movement effect, and the bodily movement of the target teeth is realized.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to an orthodontic traction hook capable of moving teeth as a whole and an orthodontic device using the traction hook. Background technique [0002] Tooth, jaw, and craniofacial deformities caused by congenital or acquired factors often require orthodontic treatment. The traction hook is an important part of the oral appliance as a carrier for applying the orthodontic force. [0003] The fixed appliances used in daily life also include brackets, buccal tubes, arch wires and implant nails. Brackets and buccal tubes are respectively bonded to the surface of the crown; the arch wire passes through the brackets or buccal tubes on different crowns to connect them, as a force device for aligning teeth and a "track" during tooth movement ”; while the application of implant nails can effectively control the movement of the target teeth. According to the different places where t...

AI Technical Summary

Problems solved by technology

Since the anchorage implant screw is usually placed in the alveolar bone of the buccal side of the upper and lower jaw, the implant screw as a fixed point is not at the same level as the stress point of the target crown, and its position is more biased towards the gum than the usual traction hook. The direction of the teeth will be subjected to obvious gingival force, which will inevitably produce the above-mentioned side effects of tilting movement, which will have a negative impact on orthodontic treatment

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