Abstract: Disclosed are a shell-shaped dental instrument and a shell-shaped dental appliance set including at least one shell-shaped dental instrument. The shell-shaped dental instrument includes a shell-shaped body having a plurality of tooth receiving cavities. The shell-shaped body includes a screen block, and the screen block includes a blocking portion disposed on a labial side and/or a buccal side of the shell-shaped body and being protruded in a direction away from teeth, and a contact portion connected with the blocking portion, where the blocking portion is configured to be in contact with labial muscle and/or buccal muscle during wearing of the shell-shaped dental instrument, such that force exerted by the labial muscle and/or the buccal muscle on the blocking portion is at least partially transmitted to gingiva through the contact portion.

Abstract: A shell-like orthodontic appliance includes a shell-like body provided with a cavity accommodating a plurality of maxillary teeth. A sagittal adjustment portion is provided at a lingual side in an anterior region of the shell-like body. The sagittal adjustment portion is configured to adjust a maxillomandibular position relationship while at least to partially offset deformation of the shell-like body caused by occlusion, and the sagittal adjustment portion is at least partially connected to the lingual side in the anterior region of the shell-like body. The sagittal adjustment portion has a geometric structure configured to stabilize a maxillomandibular occlusion relationship and reduce a deformation of the shell-like body caused by occlusion while to adjust positions of teeth in a mandibular anterior region relative to a maxilla upward to target occlusion positions in a sagittal direction.

Abstract: An orthodontic appliance and uses thereof are disclosed. The first orthodontic appliance includes a shell-like body at least having a geometric structure allowing at least one tooth in a posterior region to move in a distal direction. The shell-like body is further provided with an auxiliary anchoring portion capable of absorbing a reaction force generated by the at least one tooth in the posterior region while moving in the distal direction. Provided between the shell-like body and the auxiliary anchoring portion is an auxiliary transmitting portion used for aiding transmission of the reaction force generated by the at least one tooth in the posterior region while moving in the distal direction.

Abstract: The present disclosure provides a dental orthodontic appliance and a design method and a manufacturing method thereof. The dental orthodontic appliance includes a shell-like body, and the shell-like body is provided with a plurality of cavities for accommodating maxillary teeth, and the shell-like body is further provided with an upper palatal arch that reshapes a form of a dental arch. Two ends of the upper palatal arch are respectively and partially connected to positions of gingival margins or positions adjacent to the gingival margins on ligual sides in posterior regions of left and right sides of the shell-like body. When the shell-like body interacts with teeth, the upper palatal arch can induce buccolingual lateral amplification of maxillary palatal suture bone deposition by means of deformation, and teeth in the posterior regions move laterally buccolingually under an action of the shell-like body.

Abstract: Some embodiments of the present application disclose an auxiliary orthodontic device for a shell-like dental appliance. The auxiliary orthodontic device including: a functional component and a retaining component provided separately from the functional component. The retaining component is connected to the functional component, at least one of the functional component and the retaining component passes through a shell-like dental appliance, the functional component is retained on the shell-like dental appliance, and the functional component is provided on an outer surface of the shell-like dental appliance. The auxiliary orthodontic device for a shell-like dental appliance provided by the present application enables a shell-like dental appliance and an auxiliary device to be assembled together easily and stably, and a corresponding auxiliary device can be selected and used based on orthodontic requirements, thereby achieving a corresponding orthodontic function.