A sliding cover type orthodontic bracket with variable arch wire slot

Abstract

The invention discloses a sliding cover type orthodontic bracket with variable archwire slot, which comprises a bracket main body and a sliding cover. The bracket main body is provided with an archwire slot and a limiting mechanism, and the limiting mechanism includes a driving part and a The occupancy member is arranged in the archwire slot, the drive part is provided with an elastic column that is in transmission connection with the occupancy member; the inner side wall of the sliding cover is provided with a groove for forcing the elastic column to deform elastically; the opening and closing of the sliding cover enables The groove changes the degree of elastic deformation of the elastic column, so that the elastic column drives the space-occupying member to move in the gingival and maxillary direction, so as to reduce or restore the archwire accommodation space of the archwire slot. In the present invention, by setting a limit mechanism, the cover body drives the limit mechanism to adjust the arch wire accommodation space of the arch wire groove. When the cover is closed, the limit mechanism reduces the arch wire accommodation space in the arch wire groove and reduces the When the cover is opened, the arch wire slot restores the original size of the arch wire accommodation space, so that there is enough space to put in or take out the arch wire.

Description

technical field [0001] The invention relates to the field of dental orthodontic treatment equipment, in particular to a sliding cover type orthodontic bracket with variable arch wire slots. Background technique [0002] Orthodontic brackets are generally used in orthodontic treatment to move one or more teeth in a patient's dentition from an initial position to a desired position, and elastic archwires are usually used to connect the brackets for growing the teeth toward the desired position. Apply force over time. [0003] However, there is generally a problem in the existing orthodontic brackets: the size of the arch wire is generally smaller than the size of the arch wire slot. It is difficult for the arch wire to enter / exit the slot; and the size of the arch wire is smaller than the size of the arch wire slot, which will inevitably leave a gap between the inner wall of the arch wire slot and the arch wire, which directly affects the accurate expression of the bracket pr...

AI Technical Summary

Problems solved by technology

[0003] However, there is generally a problem in the existing orthodontic brackets: the size of the arch wire is generally smaller than the size of the arch wire slot. It is difficult for the arch wire to enter / exit the slot; and the size of the arch wire is smaller than the size of the arch wire slot, which will inevitably leave a gap between the inner wall of the arch wire slot and the arch wire, which directly affects the accurate expression of the bracket preset data and affects the correction. Treatment and effect

This patent application requires the square wire extrusion roller to enter the archwire slot, which will inevitably cause pressure and damage to both the tooth and the bracket itself

Furthermore, the continuous pressure of the shrapnel makes it inconvenient to take out the arch wire

That is to say, this patent application also has the technical problem of being inconvenient to put in or take out the arch wire

Moreover, in this patent, only when the size of the archwire is larger than the distance between the rollers (effective groove size), the roller can work effectively. For the case where the size of the archwire is smaller than the distance between the rollers (effective groove size), the roller will fail

[0008] Therefore, there is no orthodontic bracket that reasonably solves the above-mentioned technical problems at present.

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