Systems, methods, and devices for improved orthodontic treatment of a patient's teeth are provided herein. A method may include determining a movement path to move one or more teeth from an initial arrangement to a target arrangement, determining an appliance geometry for an orthodontic appliance comprising a shell and one or more integrally formed components, wherein the shell comprises a plurality of teeth receiving cavities shaped to move the one or more teeth from the initial arrangement to the target arrangement, and generating instructions for direct fabrication of the orthodontic appliance, wherein the instructions are configured to cause direct fabrication of the shell using a first material and direct fabrication of the one or more integrally formed components using a second, different material.

The present disclosure provides multi-material orthodontic appliances useful for expanding a palate or arch of a patient, and, in some case, moving one or more teeth of the patient from a first to a second location according to a treatment plan. Further provided herein are methods for producing and using such multi-material orthodontic appliances on an individualized basis where each appliance is tailored to the specific treatment requirements of a patient.

The present disclosure provides multi-material orthodontic appliances useful for expanding a palate or arch of a patient, and, in some case, moving one or more teeth of the patient from a first to a second location according to a treatment plan. Further provided herein are methods for producing and using such multi-material orthodontic appliances on an individualized basis where each appliance is tailored to the specific treatment requirements of a patient.

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 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.

A device for cranial restructuring, by the expansion, compression, or flexure of a cranial structure located between first and second anchor points, includes: a force generator configured to generate force; a first anchor attachment to the first anchor point; a second anchor attachment to a second anchor point; a hydraulic force transmitting structure, connected to the force generator, to transmit the generated force to the anchors thereby putting the cranial structure in tension, compression or flexure. Another device for cranial restructuring includes: a head support, having a head-receiving portion; a force generator to generate force which is periodic; a first anchor attachment to the first anchor point; a force transmitting structure, connected to the force generator, which transmits the periodic force to the anchor in a restructuring direction; wherein the head support includes: a restriction to prevent or restrict movement of the user's head when the periodic force is applied.

A device for cranial restructuring, by the expansion, compression, or flexure of a cranial structure located between first and second anchor points, includes: a force generator configured to generate force; a first anchor attachment to the first anchor point; a second anchor attachment to a second anchor point; a hydraulic force transmitting structure, connected to the force generator, to transmit the generated force to the anchors thereby putting the cranial structure in tension, compression or flexure. Another device for cranial restructuring includes: a head support, having a head-receiving portion; a force generator to generate force which is periodic; a first anchor attachment to the first anchor point; a force transmitting structure, connected to the force generator, which transmits the periodic force to the anchor in a restructuring direction; wherein the head support includes: a restriction to prevent or restrict movement of the user's head when the periodic force is applied.

The present invention provides a tooth moving device, effective for distalizing a posterior tooth or a canine, and also capable of being applied for distalizing not only a maxillary but also mandibular posterior tooth or canine. A tooth moving device 1 of the present invention comprises: a track part 6 extending along a teeth alignment on a maxillary palatal side, or on a maxillary or mandibular buccal side; a sliding part 13 slidably attached to the track part 6; an anchoring part 2 attached at a position close to a distal end relative to the sliding part 13; and an elastic part 14, one end of which is held by the sliding part 13 and the other end of which is held at a position close to the distal end relative to the sliding part 13, and which biases the sliding part 13 toward the distal end 5.

The present invention provides a tooth moving device, effective for distalizing a posterior tooth or a canine, and also capable of being applied for distalizing not only a maxillary but also mandibular posterior tooth or canine. A tooth moving device 1 of the present invention comprises: a track part 6 extending along a teeth alignment on a maxillary palatal side, or on a maxillary or mandibular buccal side; a sliding part 13 slidably attached to the track part 6; an anchoring part 2 attached at a position close to a distal end relative to the sliding part 13; and an elastic part 14, one end of which is held by the sliding part 13 and the other end of which is held at a position close to the distal end relative to the sliding part 13, and which biases the sliding part 13 toward the distal end 5.

Methods and systems are provided repositioning teeth of a patient, which employ at least one appliance specific to the patient for placement in the patient's mouth during use. The at least one appliance includes a polymeric shell having a cavity shaped to receive teeth of the upper jaw of the patient. The polymeric shell is integral to a polymeric segment shaped to cover the hard palate of the upper jaw of the patient. The geometry and material properties of the shell is configured such that the appliance adjusts position of the teeth of the upper jaw of the patient during use. The geometry and material properties of the segment is configured such that the appliance adjusts position of the hard palate of the upper jaw of the patient during use. Additionally or alternatively, one or more appliances can be configured to contact the teeth of the lower jaw and a mandibular bone portion disposed below the gingiva of the teeth of lower jaw and adjust position of the teeth and the mandibular bone portion of the lower jaw of the patient during use.