Tooth attachments are provided comprising one or more convex surfaces for engagement by a surface of an orthodontic appliance. Polymeric shell appliances are provided in which the polymeric shell appliances are configured to provide one or more activation forces to facilitate tooth movement. The polymeric shell appliances may comprise one or more tooth receiving cavities. The polymeric shell appliances may further comprise an engagement portion with a surface configured to engage a convex attachment surface in order to apply a tooth moving force.

An automated procedure for correcting teeth misalignment in orthodontics using the steps of Generating a 3D digital model of a jaw having the misaligned teeth. Processing the 3D model to generate a corrective plan. Designing a set of corrective elements capable of applying corrective forces to the misaligned teeth through elastic forces. Designing a set of attachments that react to the corrective forces. identifying locations for applying the attachments to the surfaces of the teeth; Bonding the attachments to the identified locations. Rescanning the jaw of the patient and generating a final 3D model of the jaw with aligned teeth. Fabricating the corrective element in accordance with geometry of the final 3D model of the jaw. Applying the corrective element to the teeth wherein. Removing the attachments. A second 3D scan can be made to determine errors, and finite element analysis may be used to determine force vectors.

An automated procedure for correcting teeth misalignment in orthodontics using the steps of Generating a 3D digital model of a jaw having the misaligned teeth. Processing the 3D model to generate a corrective plan. Designing a set of corrective elements capable of applying corrective forces to the misaligned teeth through elastic forces. Designing a set of attachments that react to the corrective forces. identifying locations for applying the attachments to the surfaces of the teeth; Bonding the attachments to the identified locations. Rescanning the jaw of the patient and generating a final 3D model of the jaw with aligned teeth. Fabricating the corrective element in accordance with geometry of the final 3D model of the jaw. Applying the corrective element to the teeth wherein. Removing the attachments. A second 3D scan can be made to determine errors, and finite element analysis may be used to determine force vectors.

The present invention pertains to a photocurable composition for a 3D printer for producing a transparent orthodontic device. A photocurable composition for a 3D printer can be provided, which has excellent physical properties such as thermal properties, strength, elastic modulus, and tensile elongation, and when used in a patient-customized transparent orthodontic device, the orthodontic device can reduce the pain felt by patients and can enhance orthodontic correction effectiveness due to being closely fitted to the dental structure. Moreover, a 3D-printed transparent orthodontic device can be produced which can be restored to the original shape thereof even when deformed from use.

Described is a vibrating device for delivering energy to at least a portion of a dental appliance. The vibrating device may be inserted into a biting element or attached to a biting element to apply vibrations to the dental appliance to aid in aligning a user's teeth.

Described is a vibrating device for delivering energy to at least a portion of a dental appliance. The vibrating device may be inserted into a biting element or attached to a biting element to apply vibrations to the dental appliance to aid in aligning a user's teeth.

A method and system for optimizing stiffness of an orthodontic archwire for a tooth malocclusion of a patient with a computer system, the method including: constructing a model of a patient's teeth in the computer system; inputting material properties of the archwire to the computer system; and determining an adjusted stiffness of a first section of the orthodontic archwire, the first section associated with the tooth malocclusion of the patient. In some cases, the adjusted stiffness may be determined based on different variables associated with the patient's teeth, which may include at least one of interbracket distance, malocclusion magnitude, bracket slot size, wire size, teeth size or extent of stiffness modification of the archwire.

A method and system for optimizing stiffness of an orthodontic archwire for a tooth malocclusion of a patient with a computer system, the method including: constructing a model of a patient's teeth in the computer system; inputting material properties of the archwire to the computer system; and determining an adjusted stiffness of a first section of the orthodontic archwire, the first section associated with the tooth malocclusion of the patient. In some cases, the adjusted stiffness may be determined based on different variables associated with the patient's teeth, which may include at least one of interbracket distance, malocclusion magnitude, bracket slot size, wire size, teeth size or extent of stiffness modification of the archwire.

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.

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.