An orthodontic device and methods thereof for correcting an arrangement of teeth are provided. The orthodontic device includes a plurality of brackets for attaching to teeth; a plurality of spring anchoring units, wherein each of the plurality of spring anchoring units is attached to one of the plurality of brackets; and a spring having a tension, two-dimensional longitudinal deformability and two-dimensional rotational deformability, wherein the spring is attached to each spring anchoring unit, wherein the tension is zero prior to attaching the plurality of brackets to the teeth, wherein further the tension is greater than zero immediately after attaching the plurality of brackets to the teeth, wherein further the tension is zero when the plurality of brackets is attached to the teeth and in an optimal position.

An improved edgewise orthodontic bracket is disclosed. In one embodiment, a bracket has a single pair of opposing T-shaped tie wings which define an archwire slot therebetween. Notches are provided on each of the mesial and distal sides of the center leg of each T-shaped tie wing for selectively receiving a ligating device. The notches are defined in the gingival/occlusal edges of the tie wings and comprise sloped portions that extend labially towards the archwire slot. Convex sidewall portions and convex floor portions are provided in the archwire slot adjacent to the notches. The body of the bracket is interconnected to a base that may includes a continuous series of characters that serve as texturing to facilitate bonding of the bracket with a tooth. A discontinuous perimeter rail may be used at the edge of the base.

The present disclosure is directed, at least in part, to a self ligating orthodontic bracket system that includes a rotatable member for securing an archwire within a slot of a bracket. Embodiments of the orthodontic bracket system disclosed herein include a bracket body containing the archwire slot as well as tie wings for attaching various orthodontic devices (e.g., elastomeric bands) to the bracket. The rotatable member is rotatable in a first direction (e.g., counter clockwise) relative to a body of the bracket for securing or locking the archwire within the slot, and for rotating in an opposite direction (e.g., a clockwise direction) relative to the bracket body for unsecuring or unlocking the archwire so that it is substantially unrestrained from exiting the slot. Other embodiments include an orthodontic appliance and method of producing and using the same, and preferably employed in a lingual orthodontic system, that includes friction reducing features between an interior of an archwire slot portion of the appliance and an archwire placed within the archwire slot.

A lingual bracket includes a bracket base (1), a bracket wing (2), and a spring (3), the bracket base (1) has an upper surface with an end provided with a fixed wing (11) and the other end provided with an auxiliary tube (12), and a bottom face provided with a non-skid bonding face (13); the bracket wing (2) has an insertion leg (21) and a wing portion (22), and can be positioned on the fixed wing (11) by the spring (3) sleeved on the insertion leg (21); a longitudinal groove (111) is provided along a central axis of the fixed wing (11) of the bracket base (1), and a transverse groove (112) is provided at a rear end face of the fixed wing (11); and the insertion leg of the bracket wing (2) has the width equivalent to that of the longitudinal groove (111), and can be placed in the longitudinal groove (111), a joint of the insertion leg (21) and the wing portion (22) is provided with a wide extension part (23), and when the insertion leg (21) is placed in the longitudinal groove (111) and pushed forward by the spring (3), the wide extension portion (23) can be interposed into the transverse groove (112) to form a positioning structure. The two crisscrossed grooves in the bracket base (1) are utilized to form the constraint for the bracket wing (2), enabling the features of an ingenious design, a simple structure, easy machining, and a convenient clinical operation.

This disclosure generally describes an extended buccal tube which is used in connection with braces for the teeth. The extended buccal tube accommodates an arch wire of a sufficient length to allow space to be created between one or more teeth while retaining the arch wire within a tube of the extended buccal tube. As space is created and the arch wire slides through the extended buccal tube, an overall length of the arch wire may be monitored through one or more windows in the extended buccal tube. Tooth pads on extended buccal tube may be rotatable by up to 20 in two axes for fitment purposes. When space has been created between the one or more teeth, extended buccal tube may be cut along scoring lines to separate teeth that were bonded together by the extended buccal tube.

An orthodontic device for use in a dental brace for advancing eruption of a tooth, the device comprising a body including abase for bonding to the tooth, an arm extending away from the body, and a wire receiving portion disposed on the arm in a position offset from the body, the wire receiving portion being arranged for receiving part of a brace wire on an axis which in use extends substantially across the tooth.

The invention relates to a bracket for correcting the position of a tooth, comprising a bracket base of a bracket body, which bracket base can be fastened to a tooth, and which bracket body has a slot, extending in the mesiodistal direction, and also a fourth slot portion that narrows by a predetermined amount in a predetermined region, so as preferably to form a snug fit for an inserted archwire, wherein the fourth slot portion is designed running in the longitudinal direction substantially parallel to the bracket base.