Zero-clearance bracket used for orthodontics

Abstract

The invention relates to a zero-clearance bracket used for the orthodontics. The zero-clearance bracket used for the orthodontics comprises a bracket body, wherein the bracket body comprises a bottomplate and a foundation support; one side, which is far away from the bottom plate, of the foundation support is provided with an upper spacing wing and a lower spacing wing; on one side, which is faraway from the bottom plate, of the foundation support, an arch wire groove used for placing a correction arch wire is arranged between the upper spacing wing and the lower spacing wing; the foundationsupport is provided with a movable groove of which the length direction is vertical to the length direction of the arch wire groove; the movable groove communicates with the arch wire groove; in themovable groove, a pressing block abutted against the correction arch wire is arranged; and a ligation wire used for tightly pressing the pressing block is jointly sheathed to the upper spacing wing and the lower spacing wing. Through the above arrangement, the pressure of the ligation wire tightly presses the pressing block to the direction of the correction arch wire, and the pressing block reduces a gap between the correction arch wire and the arch wire groove so as to improve a torque and correction force expression effect of the correction arch wire in a correction process. In addition, utilization of fixing parts is reduced, so that the zero-clearance bracket can be more easily operated in the narrow space in the oral cavity, the foreign matter feeling of a user is not obvious, and the comfort level of the user is improved.

Description

technical field [0001] The invention relates to the technical field of orthodontic brackets, in particular to an orthodontic zero-gap bracket. Background technique [0002] At present, when doctors use orthodontic appliances in clinical practice, common brackets and self-ligating brackets are commonly used. The bracket body is bonded to the tooth surface, and the orthodontic archwire passes through the bracket body. The archwire slot on the top. Ordinary brackets use ligature wires or rubber ligature rings to fix the orthodontic archwires in the archwire grooves of the bracket body, while self-locking brackets rely on sliding or rotating bracket covers, bolt covers or elastic clips to correct the archwires. It is fixed in the groove of the arch wire, so that the force of the orthodontic arch wire drives the bracket body to exert force on the teeth, so as to achieve the effect of oral orthodontics. [0003] Because a series of sizes of orthodontic archwires are used in the ...

AI Technical Summary

Problems solved by technology

However, on the one hand, self-ligating brackets are larger than ordinary brackets, especially when used on the lingual side, and the foreign body sensation of self-ligating brackets is strong; on the other hand, the space on the lingual side is limited, and screws are used to limit the correction archwire. The feasibility of the method is poor, it is difficult for doctors to operate, and the cost is also high, so there is room for improvement

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