A pearl to be placed on a tooth for an orthodontic treatment and a method of manufacturing a pearl to be placed on a tooth for an orthodontic treatment, the pearl having a surface, the surface formed of a first surface and a second surface, the first surface being destined to be in contact with a tooth and the second surface being opposite to the first surface, wherein the second surface does not include any sharp corner.

An orthodontic correction device is provided, including a shell having a number of teeth receiving cavities configured to receive teeth of a dental arch of a patient. A first elastic member holding feature is formed on one side of the shell and corresponds to an undercut region of a tooth of the dental arch. A first orthodontic elastic member is coupled to the first elastic member holding feature and extends to the interior of the shell to engage with the undercut region of the tooth, thereby enhancing the retention of the orthodontic correction device on the dental arch.

A sliding molar distalizer is provided. The distalizer features a canine attachment bracket, a molar tube, and a rod connected to the bracket and having an engagement end for engaging the molar tube. A hook formed on a portion of the rod receives an elastic for imparting distalization force directly on the distalizer towards the molar tube. An orthodontic tube formed on the attachment bracket holds an archwire that passes through premolar brackets. A buccal push flange lever is formed at a distal portion of the rod for imparting force on the molar tube.

A dental apparatus for achieving molar distalization, comprising a bracket for mounting on opposing molar teeth of a dental arch, and a dental arch wire. One end of the arch wire passes through one of a first bracket and the other end of the arch wire passes through the other of a second bracket. A worm gear adjustably fixes the position of each end of the arch wire within the bracket.

The invention relates to a dental orthosis, which includes a body having an inner surface and an outer surface, the body being arranged to homothetically cover a portion of a dental crown, an attachment having a gap and engaging with no degree of freedom with the outer surface of the body. The outer surface of the body advantageously includes a regular protrusion, the protrusion being arranged to constitute the attachment by material shrinkage, the body and protrusion being made as a single part.

Orthodontic brackets are disclosed. An orthodontic bracket is formed such that the body and mesh portions are formed integrally in one piece, and the tooth-side mounting surface includes bonding elements that have an undercut angle to the mounting surface. The bonding elements can further include geometry to facilitate the spreading of bonding material. In some aspects, the bracket can also comprise elements for wire-mounting and aligner tray interaction. A system and methods of treatment are further disclosed. The bracket can be customized for an individual patient.

A method for determining orthodontic brackets in order to use standard brackets or a combination of standard and custom brackets. The method determines which teeth in a digital 3D model of teeth have surfaces that will virtually fit to a base of a standard bracket within a tolerance. For those teeth that will virtually fit to one of the standard brackets, each of the teeth are associated with the corresponding standard bracket for later placement of the brackets on the surfaces of the patient's teeth. The method also identifies the teeth in the digital 3D model of teeth that will not virtually fit to a standard bracket, and brackets with custom bases can be designed and made for those teeth.

Dental braces according to one embodiment of the present invention comprise: wires for straightening teeth; a coating agent coated on the outer surfaces of the wires; and fixing parts for fixing the wires, coated with the coating agent, on the surfaces of the teeth and fixing the wires such that the wires can move along the longitudinal direction of the wire. A wire positioning unit applied to the surface of the tooth comprising a body and a slot configured to receive the wire.

A sliding molar distalizer is provided. The distalizer features a canine attachment bracket, a molar tube, and a rod connected to the bracket and having an engagement end for engaging the molar tube. A hook formed on a portion of the rod receives an elastic for imparting distalization force directly on the distalizer towards the molar tube. An orthodontic tube formed on the attachment bracket holds an archwire that passes through premolar brackets. A buccal push flange lever is formed at a distal portion of the rod for imparting force on the molar tube.

A method of treating a maxillary deficiency in a patient in need thereof comprises coupling a first bone anchor to the buccal surface of the maxilla of the patient, coupling a second bone anchor to the buccal surface of the maxilla of the patient, attaching a device to the first bone anchor and the second bone anchor, and applying an expansion force through the device to the maxilla. A device comprises a facebow and a lateral attachment portion, coupled to the facebow. The facebow includes a first extra-oral attachment portion and a second extra-oral attachment portion, configured to be coupled to an external anchorage or protraction device, a first intra-oral attachment portion, configured to be coupled to a first bone anchor, and a second intra-oral attachment portion, configured to be coupled to a second bone anchor. The device may be coupled to an external anchorage or protraction device.