Method, cutting method and cutting device for determining maxillofacial cutting path of appliance

Abstract

A method for determining the maxillofacial cutting path of an appliance, comprising the steps of: establishing an occlusal relationship between an upper jaw model and a lower jaw model; determining the occlusal surface to be removed according to the occlusal relationship, and obtaining the occlusal surface to be removed according to the occlusal relationship Occlusal apex; the cutting path of the cutting edge of the occlusal surface to be removed is determined according to the occlusal apex. Determine the occlusal surface to be removed and the occlusal vertices included in the occlusal surface by establishing an occlusal relationship, automatically fit the cutting path according to the occlusal vertex, and automatically identify and determine the trajectory that needs to be cut. Laser cutting provides the basis for cutting; when preparing the appliance for concave deformity correction, the cut appliance can effectively fix the relative position between the upper and lower jaws when it cooperates with the opposing jaw. For the application of germination aid, the occlusal surface of the tooth that needs to be sprouted is cut accordingly, which is helpful for the export of germination.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for determining a maxillofacial cutting path of a George appliance appliance, a cutting method and a cutting device. Background technique [0002] Malocclusion refers to the congenital genetic factors or acquired environmental factors during the growth and development of children, such as diseases, bad oral habits, tooth replacement disorders, etc., and can also be caused by trauma, periodontal disease and other reasons after growth and development. Such as irregular arrangement of teeth, abnormal occlusal relationship between the upper and lower dental arches, abnormal size, shape and position of the jaw, facial deformities, etc. The formation factors and mechanisms of malocclusion are complex, and the occurrence process may be caused by a single factor and a single mechanism, or it may be the result of multiple factors or multiple mechanisms. Divided from the ...

AI Technical Summary

Problems solved by technology

[0003] Invisible orthodontic appliances are chosen by more and more people because they are comfortable to wear, can be removed and worn, and are beautiful. Wearing invisible orthodontic appliances during orthodontic treatment requires that they fit closely with the teeth and cooperate with the attachments attached to the teeth for orthodontic treatment. And this kind of invisible orthodontic appliance has a strong wrapping ability for teeth. For teenagers who wear it during the dental replacement period, because it is easy to have missing teeth, during the production process of the invisible orthodontic appliance, this missing part wraps the surface of the gums and wears invisible. Orthodontic appliances take a long time, which is not conducive to the growth of erupted teeth

In addition, when the upper and lower jaws are treated at the same time and the upper and lower jaws need to be coordinated to complete the treatment, since the invisible dental appliance is made of polymer materials, it is easy to produce relative sliding when the upper and lower jaws cooperate, which is not conducive to the establishment of a stable relationship between the upper and lower jaws, especially for When the maxillary teeth are equipped with a jaw pad, the stability of the relative position between the jaw pad and the lower jaw is poor

The current method of making incisions on invisible orthodontic appliances is to manually cut the holes on the braces according to the cutting requirements, but this method has a large human factor, and the differences in individual production lead to uncertainty in the cutting results Sexual factors, the results of the cutting trajectory cannot be effectively controlled

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