A method of manufacturing customized ceramic labial/lingual orthodontic brackets by digital light processing, said method comprises measuring dentition data of a profile of teeth of a patient, wherein measuring dentition data is performed using a CT scanner or intra-oral scanner, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model on a computer, designing a 3D CAD bracket structure model for a single labial or lingual bracket structure, importing the 3D CAD bracket structure model into a Digital Light Processing (DLP) machine, directly producing the bracket by layer manufacturing.

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.

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.

A system is directed to repositioning teeth and includes a first three-dimensional image showing an initial position in which a plurality of teeth are unaligned, and a second three-dimensional image shows a final position in which the plurality of teeth are aligned. The system also includes a plurality of structural domes for respective attachment to the plurality of teeth, the plurality of structural domes being customized and formed based on at least one of the first three-dimensional image and the second three-dimensional image. Each chair-side fabricated dome has at least one internal tunnel that is unaligned with an adjacent internal tunnel in the initial position. A continuous wire is inserted through each internal tunnel of the plurality of structural domes and applies a force to the plurality of structural domes such that adjacent internal tunnels are in alignment with each other in the final position.

An orthodontic bracket can include a bracket body. The bracket body can include an outer body. The bracket body can also include an inner body coupled to the outer body. The orthodontic bracket can include a bracket base configured to couple to a tooth. The inner body of the outer body is disposed between the outer body and the bracket base.

In an embodiment, the present disclosure relates to a segmental distalization device that includes an elongate bar having a distal end and a mesial end, a distal base on the distal end of the elongate bar, a mesial base on the mesial end of the elongate bar, and an attachment member attached to at least one of the elongate bar, the distal base, and the mesial base. In some embodiments, the attachment member is operable to connect the segmental distalization device to an anchor via an elastic connector.

A method of manufacturing customized ceramic labial/lingual orthodontic brackets by digital light processing, said method comprises measuring dentition data of a profile of teeth of a patient, wherein measuring dentition data is performed using a CT scanner or intra-oral scanner, based on the dentition data, creating a three dimensional computer-assisted design (3D CAD) model of the patient's teeth using reverse engineering, and saving the 3D CAD model on a computer, designing a 3D CAD bracket structure model for a single labial or lingual bracket structure, importing the 3D CAD bracket structure model into a Digital Light Processing (DLP) machine, directly producing the bracket by layer manufacturing.

An orthodontic bracket extension system for orthodontic braces, the orthodontic bracket extension system including a plurality of bracket base extensions each having an aperture in which a corresponding one of a plurality of bracket base can be disposed to increase a bracket bonding surface area for greater securement of each of the plurality of brackets to each of a corresponding plurality of teeth.

The present invention represents a qualitative technique modification of the self-uprighting bracket technique. The present invention overcome the drawbacks of the prior art by providing an orthodontic bracket assembly having a base with rotatable body engaging the archwire and removable plate inserted into the base to retain the archwire. In addition, the removable plate can allow or prevent the rotation of the rotatable body depending on the different stages of the treatment.

An orthodontic bracket for coupling an archwire with a tooth. The orthodontic bracket including a ceramic injection molded (CIM) bracket body including an archwire slot that is configured to receive the archwire therein. The CIM bracket body including a polycrystalline ceramic. A coating of alumina or silicon dioxide is in continuous and direct contact with at least the surfaces of the archwire slot. The orthodontic bracket is characterized by unexpectedly high torque strength. The ceramic injection molded (CIM) bracket body may include a polycrystalline ceramic having a grain size distribution characterized by an average grain size in the range of larger than 3.4 μm to about 6 μm such that the orthodontic bracket is also characterized by unexpectedly high fracture toughness. A method of making the orthodontic bracket includes injection molding a bracket using a ceramic powder, sintering the molded bracket, and coating the ceramic injection molded bracket.