An orthodontic bracket is provided, including a main body, a cover, and an elastic spring element. The main body has an archwire slot configured to receive an archwire. The cover is hingedly connected to the main body, and the cover can be moved between an open position and a closed position. The open position exposes the archwire slot and the closed position covers the archwire slot. The elastic spring element is disposed in the main body, coupled to the cover and the main body, and configured to generate a force that moves the cover into the open position.

An orthodontic bracket with an adjustable hook designed to facilitate bending. The orthodontic bracket includes a bracket body mountable to a tooth and an adjustable hook extending from the bracket body, the adjustable hook comprising a stem base structure a bend region extending from the stem base structure, a neck region extending from the bend region, and a head extending from the neck region. In some embodiments, the adjustable hook has a length, L.sub.1, measured from a bottom portion of the stem base structure to the head, and a length, L.sub.2, measured from a bottom portion of the neck region of the hook stem to a free end of the head, wherein L.sub.2 is greater than or equal to 60% of L.sub.1.

The present disclosure provides a self-ligating bracket, a double-wing spacing adjustable bracket and a dental appliance. The self-ligating bracket includes: a bracket base plate; a first end of a first elastic support is connected to the bracket base plate; a bracket body is a hollow structure, a second end of the first elastic support is connected to a distal end of the bracket body, and the distal end of the bracket body is provided with a gap and the distal end of the bracket body is expanded radially by the second end of the first elastic support; and a position-limited member is movable in an axial direction of the bracket body, and the position-limited member is sleeved on an outside of the bracket body for overcoming expansive force provided by the elastic supports and making the bracket body contract along a radial direction.

A bracket system for orthodontic appliances including a bracket combinatorial library having a plurality of brackets each interchangeably fixedly mountable to each of a plurality of teeth within a dentition group in a dental arch, whereby the plurality of brackets can be configured to provide incremental variation in tipping force moments, in-out force moments, and torqueing force moments over the entire useful range of orthodontic mechanics, allowing an orthodontic practitioner to prescribe a combination of tipping force moments, in-out force moments, and torqueing force moments unique for each tooth in relation to the plurality of teeth of a patient.

An apparatus and a related pair of elements and methods are for aligning or positioning teeth. The apparatus is configured to be worn in a mouth of a wearer and further configured to be supported on the teeth of the wearer, and has elements arranged to be distributed along a set of the teeth and at least one engager member for engaging the elements for moving one or more of the teeth. In such embodiments, at least one pair of the elements can be engaged such that when in use, at least one part of one of the elements in the pair bears against at least one part of the other of the elements in the pair.

A self-ligating bracket for orthodontics, includes: a groove for receiving an archwire; a slide which can be displaced between a closed position in which it bridges the groove and an open position in which the groove is open; and a locking element which can hold the slide both in its closed position and in its open position. In the gingival and/or in the occlusal wall, a recess is open towards the slide in which the locking element is inserted which is directed against the slide. The locking element is displaceably guided in the recess and has elastically or elastomerically bendable tines which, when the slide is pushed over the convex end of the locking element, are displaced deeper into the recess, thereby being elastically or elastomerically bent and thereby building up a restoring force.

The disclosure relates to an orthodontic bracket including a ligating member mountable to a bracket body, the ligating member moveable between an open and closed position over an archwire slot. The orthodontic bracket includes a channel formed between the bracket body and the ligating member, and a resilient biasing member extending into the channel, the biasing member interacting with the ligating member to retain the ligating member in either the open or closed position.

A self-ligating bracket and a clip for a self-ligating bracket include a first clip arm and a second clip arm. The first arm terminates in a mesial arm, a distal arm, and a middle arm. The clip is moveable between an open position in which the arch wire slot is accessible and a closed position in which the arch wire slot is occluded. The second clip arm extends past the first, second, and third arms of the first clip arm. The self-ligating bracket includes a bracket body with an arch wire slot and the second clip arm positioned lingually of the arch wire slot.

An orthodontic appliance, includes a main body having an archwire groove and a movable part, and further includes a fixing structure for fixing the movable part at least in the closed position. The fixing structure includes an elastic member and a movable element which are located in one of the main body or the movable part. The movable element includes at least one protruding end, which is received in another of the main body and the movable part, the movable element cooperates with the elastic member to fix the movable part at least in the closed position, and the movable element acquires a moving space by squeezing the elastic member. During the opening and closing of the movable part, the wear-resistant movable element replaces the elastic element to cause friction with the movable part, which improves the wear resistance and service life of the appliance.

An orthodontic self-ligating bracket for orthodontic treatment of maloccluded teeth. The bracket includes a bracket body, a bracket door, and a spring mechanism retained by the bracket door. The bracket body has a base on the bottom side of the bracket body that is contoured to attach to a surface of a tooth, a bracket slot on the top side of the bracket body extending in a mesiodistal direction and configured to releasably retain an archwire, and a bracket groove on the top side of the bracket body extending in an occlusogingival direction towards the bracket slot. The spring mechanism includes one or more springs that are configured to contact the bracket door and the bracket body. The bracket door can thus be retained by and slidably engage the bracket body between an open position and a closed position. One or more additional active spring members may also be provided.