Improvement is required in many aspects in order to enhance a treatment effect by reliably applying necessary orthodontic force for moving teeth. The present invention provides a mouthpiece type removable orthodontic appliance including a base portion (10), and a fitting portion (20) provided on the base portion. The base portion (10) is a thin plate formed of an inelastic material and extending along the shape of an occlusal surface of a dental arch of a jaw on which the orthodontic appliance is fitted. The fitting portion (20) includes a movement member (30, 40) to be fitted on a tooth intended to be moved, and a gripping member (50, 60) to be fitted on a tooth unintended to be moved. The movement member includes an orthodontic tooth surface pad pair including two orthodontic tooth surface pads conforming to a post-movement position and state of a tooth crown surface of the intended tooth, and an orthodontic resilient member for applying an orthodontic force and a gripping force to the tooth surface pad pair. The gripping member includes a gripping tooth surface pad pair including two gripping tooth surface pads for covering a tooth crown surface of the unintended tooth, and a gripping resilient member for applying a gripping force to the gripping tooth surface pad pair.

Improvement is required in many aspects in order to enhance a treatment effect by reliably applying necessary orthodontic force for moving teeth. The present invention provides a mouthpiece type removable orthodontic appliance including a base portion (10), and a fitting portion (20) provided on the base portion. The base portion (10) is a thin plate formed of an inelastic material and extending along the shape of an occlusal surface of a dental arch of a jaw on which the orthodontic appliance is fitted. The fitting portion (20) includes a movement member (30, 40) to be fitted on a tooth intended to be moved, and a gripping member (50, 60) to be fitted on a tooth unintended to be moved. The movement member includes an orthodontic tooth surface pad pair including two orthodontic tooth surface pads conforming to a post-movement position and state of a tooth crown surface of the intended tooth, and an orthodontic resilient member for applying an orthodontic force and a gripping force to the tooth surface pad pair. The gripping member includes a gripping tooth surface pad pair including two gripping tooth surface pads for covering a tooth crown surface of the unintended tooth, and a gripping resilient member for applying a gripping force to the gripping tooth surface pad pair.

An advanced (or supercoil) spring is disclosed herein. While the advanced spring can include any suitable feature, in some cases, it includes a coil spring having multiple external coils that define a portion of an inner lumen of the coil spring. In some such case, the coil spring further includes a first internal coil that extends at least partially into the inner lumen of the coil spring. In some cases, the external coils and the first internal coil are each made of, and comprise part of, one single continuous spring wire. In some cases, the coil spring includes a tension spring such that surfaces of adjacent external coils contact each other, and such that the first internal coil is disposed within a portion of the inner lumen defined by the adjacent external coils, when the coil spring is at rest. Additional implementations are discussed herein.

A system for correcting class III malocclusions is disclosed. The system may include a maxilla appliance having tooth receiving cavities shaped to receive teeth of the maxilla and a first coupling for receiving an elastic. The system may also include a mandibular appliance having tooth receiving cavities shaped to receive teeth of the mandible. In some embodiments, the system includes a class III corrective appliance having a first mount shaped to engage with the mandibular arch of the patient and having a second coupling shaped to receive the elastic.

A system for correcting class III malocclusions is disclosed. The system may include a maxilla appliance having tooth receiving cavities shaped to receive teeth of the maxilla and a first coupling for receiving an elastic. The system may also include a mandibular appliance having tooth receiving cavities shaped to receive teeth of the mandible. In some embodiments, the system includes a class III corrective appliance having a first mount shaped to engage with the mandibular arch of the patient and having a second coupling shaped to receive the elastic.

Maxillary and mandibular appliances can be mounted to a user's upper and lower jaws. The appliances can include a palatal pad, buccal tubes, hamular notch tubes, and an anterior deprogrammer. The various portions of the appliances can provoke beneficial reactions by muscles in the tongue and jaw area, massage the same muscles, or provide other beneficial effects.

The present disclosure provides method, computing device readable medium, and devices for dental appliances with repositioning jaw elements. An example of a method can include identifying a misaligned jaw of a patient from a virtual image of the patient’s jaw, providing a treatment plan for the patient including a virtual model of a dental appliance having a first shell and a second shell configured to reposition at least one tooth of the parent, and adjusting the position of the repositioning jaw elements on the first shell and the second shell to comply with a number of constraints. The virtual model of the dental appliance including repositioning jaw elements on the first shell and the second shell configured to move a position of the misaligned jaw of the patient,

The present disclosure provides method, computing device readable medium, and devices for dental appliances with repositioning jaw elements. An example of a method can include identifying a misaligned jaw of a patient from a virtual image of the patient’s jaw, providing a treatment plan for the patient including a virtual model of a dental appliance having a first shell and a second shell configured to reposition at least one tooth of the parent, and adjusting the position of the repositioning jaw elements on the first shell and the second shell to comply with a number of constraints. The virtual model of the dental appliance including repositioning jaw elements on the first shell and the second shell configured to move a position of the misaligned jaw of the patient,

Methods of planning dental treatments are provided. In some embodiments, a method includes determining a plurality of stages for incremental repositioning of a patient's teeth. The method can include determining, for at least one stage, a shape of a corresponding dental appliance body, and generating instructions for direct fabrication of the dental appliance body. The dental appliance body can include a support formed in a tooth-receiving cavity, one or more coupling structures formed proximate to the support, and an attachment formed proximate to the one or more coupling structures. The dental appliance body can be configured to align the attachment to a predetermined location on a tooth. The one or more coupling structures can be configured to release the attachment with removal of the dental appliance body from the tooth.

Methods of planning dental treatments are provided. In some embodiments, a method includes determining a plurality of stages for incremental repositioning of a patient's teeth. The method can include determining, for at least one stage, a shape of a corresponding dental appliance body, and generating instructions for direct fabrication of the dental appliance body. The dental appliance body can include a support formed in a tooth-receiving cavity, one or more coupling structures formed proximate to the support, and an attachment formed proximate to the one or more coupling structures. The dental appliance body can be configured to align the attachment to a predetermined location on a tooth. The one or more coupling structures can be configured to release the attachment with removal of the dental appliance body from the tooth.