Tooth orthodontic appliance, accessory device and method for manufacturing tooth orthodontic appliance

Abstract

The invention provides a tooth orthodontic appliance reserved with a tooth rapid movement channel, an accessory device for realizing tooth rapid movement and a method for manufacturing the corresponding tooth orthodontic appliance. On one hand, the tooth orthodontic appliance can make necessary restrictions on tooth movement, and on the other hand, also can realize tooth rapid movement with controllable freedom degree. Therefore, the tooth orthodontic appliance not only can efficiently correct teeth, and also cannot increase the time and the cost of repeatedly designing or processing the orthodontic appliance.

Description

technical field [0001] The present invention generally relates to the field of oral clinical orthodontics, and in particular, the present invention relates to a dental appliance and an accessory device capable of realizing rapid movement of teeth, and a method for manufacturing the dental appliance. Background technique [0002] Dental deformity is one of the three major diseases of the oral cavity and has a high prevalence rate. The traditional orthodontic methods mostly use fixed brackets that are bonded to the teeth. The disadvantage is that the steel wires are exposed, which affects the appearance. At the same time, because the orthodontics are glued to the teeth for a long time, they cannot be removed during the whole orthodontic process. Oral hygiene is difficult to maintain well, and it is easy to breed plaque to cause tooth demineralization and discoloration; and the doctor must manually adjust the appliance on a regular basis during the treatment process. The treatm...

AI Technical Summary

Problems solved by technology

However, during the use of clear aligners, its shortcomings and limitations in some special types of tooth movement are gradually exposed, which limits the further promotion and application of clear aligners

For example, the twisting of canines and bicuspids is a common type of dental malocclusion. Since the cross-sectional shape of the crowns of canines and bicuspids is mostly circular or elliptical, the elastic deformation of the invisible aligner It is often difficult for the force of the crown to fully act on the crown itself or the bonding accessories, resulting in low orthodontic efficiency and affecting the curative effect

Moreover, due to the mechanical elasticity of the material and the design principle of the clear aligner, the amount of correction designed in each step is relatively limited, which also affects the correction effect of the clear aligner.

[0004] At present, only some methods of conventional fixed brackets can be used to correct this kind of misalignment such as twisted canines and bicuspids, for example, applying equal and directional Opposite force couples, but in this way there is no effective control over the direction or amount of movement of the teeth

Although it is possible to temporarily move the teeth rapidly, for the realization of the overall orthodontic solution, it is necessary to repeatedly perform model scanning, three-dimensional reconstruction and other work, which will lead to an increase in orthodontic time and economic costs.

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