Shell-shaped dental instrument, tooth correction system and design method and preparation method of shell-shaped dental instrument

Abstract

The invention provides a shell-shaped dental instrument, which comprises a first shell-shaped body for at least partially accommodating maxillary teeth and a second shell-shaped body for at least partially accommodating mandibular teeth, the first shell-shaped body is convexly provided with a first convex part towards the jaw facing direction in an area between canine teeth and molars, and the first convex part is used for guiding and adjusting the relation between the upper jaw and the lower jaw; the second shell-shaped body is convexly provided with a second convex part in the jaw aligning direction in an area between canine teeth and molars, and the second convex part is used for adjusting the relation between the upper jaw and the lower jaw in a matched manner; a first reinforcing component is arranged on the first convex part, a second reinforcing component is arranged on the second convex part, and the outer surface of the first reinforcing component and the outer surface of the second reinforcing component are of concave-convex matched structures. When the first shell-shaped body interacts with the second shell-shaped body, the first reinforcing component and the second reinforcing component slide relatively to guide the upper jaw and the lower jaw to a preset occlusion position, and the invention further provides a tooth correction system, a dental instrument design method and a preparation method.

Description

technical field [0001] The invention belongs to the technical field of dental orthodontics, and more precisely relates to dental invisible orthodontic technology, in particular to a shell-shaped dental instrument, a dental orthodontic system, a design method and a preparation method of the dental instrument. Background technique [0002] At present, in the technical field of orthodontic treatment, functional orthodontic treatment is a conventional treatment method for malocclusion symptoms in children and adolescents with deciduous teeth and replacement teeth. Twin-Block orthodontic technology is a conventional treatment method. Compared with the "flat guide" effect of traditional functional appliances, the double-jaw plate orthodontic technology uses two raised solid jaw pads to transfer a certain amount of occlusal force. It is transmitted to the dentition and jaw, and then achieves the purpose of adjusting the relative position of the upper and lower jaws. [0003] Since...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the existing invisible Twin-Block appliances are formed by pressing film, and most of the raised jaw pads are hollow structures. In this way, during the use of patients, on the one hand, it will cause the two jaw pads to occlude after multiple bites. , Deformation occurs due to insufficient rigidity. If the patient continues to use the deformed invisible Twin-Block appliance, it will lead to: (1) The correction is not strong enough to reach the preset occlusal position, and the subsequent correction steps cannot be carried out normally; (2) ) The direction of the predetermined force will be changed, and the unexpected force will cause the teeth to move in the unexpected direction, and finally destroy the entire orthodontic plan

On the other hand, the protruding jaw pads of the two cavity structures may be directly bitten by the patient during use and cannot continue to be used. At this time, it is necessary to re-press the film to make the invisible aligner required by the patient in this step. In this case , will lead to an increase in the cost of orthodontic treatment and lengthen the treatment period. At the same time, during the period when the patient is waiting for the production of a new invisible aligner, due to the interruption of treatment, the teeth may not be subject to the constraints of the corrective force. Unexpected movement may occur. Invisible aligners are also unable to match teeth that have moved and may eventually lead to a restart of orthodontic treatment

Furthermore, in view of the unpredictable and undesired force generation, the jaw pads will slide in the buccal-lingual direction during use, and the upper and lower jaws cannot accurately reach the preset occlusal position, which will cause the problem of jaw deviation

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