An intra-oral device comprising upper and lower jaw applicators, the upper jaw applicator comprising upper left and upper right components, and the lower jaw applicator comprising lower left and lower right components; a transverse adjustment mechanism for simultaneously adjusting a distance between the upper left and upper right components, and the lower left and lower right components wherein the transverse adjustment mechanism comprises: a threaded rod having one end portion engageable with the upper left and lower left components, and another end portion engageable with the upper right and the lower right components.

An intra-oral device comprising upper and lower jaw applicators, the upper jaw applicator comprising upper left and upper right components, and the lower jaw applicator comprising lower left and lower right components; a transverse adjustment mechanism for simultaneously adjusting a distance between the upper left and upper right components, and the lower left and lower right components wherein the transverse adjustment mechanism comprises: a threaded rod having one end portion engageable with the upper left and lower left components, and another end portion engageable with the upper right and the lower right components.

A mandibular positioning facial retrognathism orthodontic system and a design method thereof are disclosed. The orthodontic system includes a maxillary shell-like dental appliance having a shell-like body, a protrusion portion protruding toward an opposite jaw is disposed at a posterior area corresponding to the shell-like body, a traction portion is disposed at a labial side of the shell-like body, and a retaining portion configured for fastening with a retaining attachment is disposed at the posterior area corresponding to the shell-like body. The protrusion portion is engaged with the posterior area of a mandibular for occlusal reconstruction, so that mandibular incisors are aligned with maxillary incisors. The design method is a design method for the mandibular positioning facial retrognathism orthodontic system, which can provide a treatment-specific orthodontic system, thereby achieving treatment of mandibular positioning facial retrognathism.

A mandibular positioning facial retrognathism orthodontic system and a design method thereof are disclosed. The orthodontic system includes a maxillary shell-like dental appliance having a shell-like body, a protrusion portion protruding toward an opposite jaw is disposed at a posterior area corresponding to the shell-like body, a traction portion is disposed at a labial side of the shell-like body, and a retaining portion configured for fastening with a retaining attachment is disposed at the posterior area corresponding to the shell-like body. The protrusion portion is engaged with the posterior area of a mandibular for occlusal reconstruction, so that mandibular incisors are aligned with maxillary incisors. The design method is a design method for the mandibular positioning facial retrognathism orthodontic system, which can provide a treatment-specific orthodontic system, thereby achieving treatment of mandibular positioning facial retrognathism.

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.

Aspects of a distalizer and method of assembling a distalizer are provided. The distalizer comprises an arm including a mesial element at one end of the arm, a ball member at another end of the arm, and a distal element which encloses the ball member without deformation of the distal element. The mesial element has a first base for attachment to a canine or bicuspid, and the distal element has a second base for attachment to a molar. To assemble the distalizer, the arm with the mesial element and the ball member is provided, and the ball member is enclosed in the distal element without deformation of the distal element. Alternatively, the mesial and distal elements are additively manufactured simultaneously with the arm including the ball member, and the ball member is enclosed in the distal element without deformation of the distal element during the additive manufacturing.

The invention relates to an apparatus for training the muscular, sensorimotor and neurophysiological systems of the temporomandibular joint and for positioning and guiding the lower jaw relative to the upper jaw,

wherein the apparatus (100) comprises at least two modules (120, 130) which lie against one another in the region of a comparatively large-area separating-sliding plane (110) without teeth or tooth fissures or comparable shapes obstructing the sideways movement of the modules relative to one another along the separating-sliding plane (110), wherein at least one of the two modules (120, 130) is designed as an upper jaw module (120) which has a plurality of recesses (124) for the teeth (221) of the upper jaw (220), said recesses approximately forming an arch, and a first smooth sliding surface (123), and at least one of the two modules (120, 130) is designed as a lower jaw module (130) having a plurality of recesses (134) for the teeth (231) of the lower jaw (220) and a second smooth sliding surface (133),

wherein the smooth planar first and second sliding surfaces of the modules (123; 133) have a good planarity, a low roughness, with RZ preferably below 5 micrometers, and/or a very low frictional resistance, so that along the separating-sliding plane (110) a laterally sliding planar and flat guided sliding movement in two spatial directions and/or a rotation about the axis perpendicular to the separating-sliding plane (110) can take place.

The invention relates to an apparatus for training the muscular, sensorimotor and neurophysiological systems of the temporomandibular joint and for positioning and guiding the lower jaw relative to the upper jaw,

wherein the apparatus (100) comprises at least two modules (120, 130) which lie against one another in the region of a comparatively large-area separating-sliding plane (110) without teeth or tooth fissures or comparable shapes obstructing the sideways movement of the modules relative to one another along the separating-sliding plane (110), wherein at least one of the two modules (120, 130) is designed as an upper jaw module (120) which has a plurality of recesses (124) for the teeth (221) of the upper jaw (220), said recesses approximately forming an arch, and a first smooth sliding surface (123), and at least one of the two modules (120, 130) is designed as a lower jaw module (130) having a plurality of recesses (134) for the teeth (231) of the lower jaw (220) and a second smooth sliding surface (133),

wherein the smooth planar first and second sliding surfaces of the modules (123; 133) have a good planarity, a low roughness, with RZ preferably below 5 micrometers, and/or a very low frictional resistance, so that along the separating-sliding plane (110) a laterally sliding planar and flat guided sliding movement in two spatial directions and/or a rotation about the axis perpendicular to the separating-sliding plane (110) can take place.

An elongated member is used to create tension to move teeth en masse to correct Class II and Class III malocclusions. The elongated member has a constant force spring that, when stretched, provides tension along the elongated member. A mesial end of the elongated member is attached to a bridge assembly which is attached to a row of teeth, and a distal end of the elongated member is attached to an anchor. The spring member provides a constant tension which moves the bridge assembly, and hence the row of teeth, a precalibrated distance.

An elongated member is used to create tension to move teeth en masse to correct Class II and Class III malocclusions. The elongated member has a constant force spring that, when stretched, provides tension along the elongated member. A mesial end of the elongated member is attached to a bridge assembly which is attached to a row of teeth, and a distal end of the elongated member is attached to an anchor. The spring member provides a constant tension which moves the bridge assembly, and hence the row of teeth, a precalibrated distance.