Wuxi Ea Medical Instruments Technologies Limited

Ketuo Zhou

Jian Li

Meng Wang

Lei Huang

In one aspect of the present application, a dental appliance for isolating jaws from facial muscles is provided, the dental appliance is substantially in the shape of an elongated plate curved according to dental arches, and is received between the jaws and the facial muscles when it is worn, the dental appliance comprises: buccal shields located at both ends of the dental appliance and configured to isolate posterior teeth from facial muscles; and labial bumpers located in the middle of the dental appliance and configured to isolate anterior teeth from facial muscles, wherein the buccal shields and the labial bumpers form an integral piece.

Dental appliance

In one aspect, the present application provides a method of fabricating a shell-shaped repositioner for repositioning teeth from a first tooth arrangement to a second tooth arrangement, comprising: obtaining a first 3D digital model representing the first tooth arrangement, a second 3D digital model representing the second tooth arrangement and information of restrictions on anchorage force bearing of a first tooth among the teeth; modifying the second 3D digital model based on the first 3D digital model, the second 3D digital model and the information of restrictions on anchorage force bearing of the first tooth, to obtain a third 3D digital model; and controlling an apparatus using the third 3D digital model to fabricate the shell-shaped repositioner.

Shell-shaped tooth repositioner and fabrication method thereof

The present application discloses a method for numerically simulating orthodontic effect of an orthodontic appliance. The method comprising: providing a numerical dental model representing a patient's dental tissues, wherein the numerical dental model comprises mechanical parameters and geometrical parameters of the patient's dental tissues; providing a numerical orthodontic appliance model representing an orthodontic appliance, the orthodontic appliance corresponding to an expected orthodontic state, and the numerical orthodontic appliance model comprising mechanical parameters and geometrical parameters of the orthodontic appliance; combining the numerical orthodontic appliance model with the numerical dental model to simulate wearing of the orthodontic appliance on the patient's dental tissues; calculating orthodontic change after the wearing of the orthodontic appliance on the patient's dental tissues, based on the mechanical parameters and geometrical parameters included in the numerical orthodontic appliance model and the numerical dental model respectively; and assessing the orthodontic effect of the numerical orthodontic appliance model based on the orthodontic change.

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Wuxi, China

Ketuo Zhou