Abstract: Methods of fabricating orthodontic alignment devices. First forces may be applied to teeth of a digital model to simulate movement of the teeth from one stage of an ordered sequence of stages to a next stage. The first forces may include one or more unwanted forces that move one or more teeth of the digital model in an unwanted direction. One or more forces may be applied to the palate of the digital model that results in second forces applied to the teeth of the digital model to replace or offset the one or more unwanted forces. A shape for the orthodontic alignment device may be determined based on the first and second forces applied to the teeth and in combination with the one or more forces applied to the palate of the digital model. An orthodontic alignment device may be fabricated based on the determined shape.

Abstract: Methods and apparatuses for increasing the effectiveness dental appliances in gripping and manipulating teeth. These methods and apparatuses may include one or more (e.g., a series of) dental appliances that may include a radial grip that improves the contact and allows the application of normal and friction forces between a patient's teeth and aligner without disrupting the fit of the overall aligner.

Abstract: A dental attachment placement device comprises a plurality of articulated registration elements shaped for placement on a plurality of teeth, which can facilitate placement, accommodate tooth movement, and improve alignment of the registration elements with the teeth, so as to accurately position an attachment for placement. The plurality of registration elements may comprise one or more attachment supports and one or more retention supports extending from the plurality of registration elements. A dental attachment can be removably coupled to the attachment support. The plurality of registration elements and attachment supports may be located on opposing sides of one or more teeth in order to maintain placement prior to adhering the attachment to the tooth. In some embodiments, each of the plurality of registration elements comprises a tooth registration surface shaped to engage the tooth with a specific position and orientation for accurate positioning of the attachment.

Abstract: A set of stabilizer aligners includes an upper stabilizer aligner for an upper dental arch of a patient and a lower stabilizer aligner for a lower dental arch of the patient. The upper stabilizer aligner comprises a first set of cavities that conform to a dentition of the upper dental arch and a first set of stabilizing features. The lower stabilizer aligner comprises a second set of cavities that conform to a dentition of the lower dental arch and a second set of stabilizing features. Stabilizing features in the second set of stabilizing features are configured to contact opposing stabilizing features in the first set of stabilizing features. The upper stabilizer aligner and the lower stabilizer aligner prevent jaw movement of the patient while the upper stabilizer aligner is worn on the upper dental arch, the lower stabilizer aligner is worn on the lower dental arch, and the upper stabilizer aligner is engaged with the lower stabilizer aligner.

Abstract: A storage case for dental appliances can include a lid and a base that form an enclosed cavity to receive the dental appliance. The storage case can include a hinge to couple the lid to the base and hold the lid in partially opened and opened predetermined positions with respect to the base. In some variations, the storage case may include one or more drainage holes to facilitate the removal of liquids from within the storage case. The storage cases may also include tactile feedback indicating that the lid is opening and/or closing.

Abstract: A system for correcting malocclusions may include a maxillary appliance having tooth receiving cavities shaped to receive teeth of a maxilla and a first elastic coupling at gingival line of the maxillary appliance. The first elastic coupling may be configured for receiving an elastic. The system may also include mandibular appliance having tooth receiving cavities shaped to receive teeth of a mandible. The system may also include a corrective appliance having a first coupling configured to be coupled to the mandibular appliance at a first location on a first side of incisors of a patient and a second coupling configured to be coupled to the mandibular appliance on a second side of the incisors, and having an arm extending from the corrective appliance towards the gingival line of the maxillary appliance and being shaped to receive the elastic.

Abstract: A system for correcting malocclusions may include a maxillary appliance having tooth receiving cavities shaped to receive teeth of a maxilla and a first elastic coupling at gingival line of the maxillary appliance. The first elastic coupling may be configured for receiving an elastic. The system may also include mandibular appliance having tooth receiving cavities shaped to receive teeth of a mandible. The system may also include a corrective appliance having a first coupling configured to be coupled to the mandibular appliance at a first location on a first side of incisors of a patient and a second coupling configured to be coupled to the mandibular appliance on a second side of the incisors, and having an arm extending from the corrective appliance towards the gingival line of the maxillary appliance and being shaped to receive the elastic.

Abstract: A method may include identifying a jaw position of a misaligned jaw of a patient from the virtual image of the patient's jaw and providing a treatment plan. The treatment plan may include tooth repositioning forces and jaw repositioning forces. The method may also include virtually modeling application of jaw repositioning forces between a first repositioning jaw element and a second repositioning jaw element to obtain a virtual model of the application of the jaw repositioning forces on the virtual model of the patient's jaw, identifying one or more constraints limiting the application of the jaw repositioning forces to the misaligned jaw, and adjusting the first repositioning jaw element and the second repositioning jaw element to accommodate the one or more constraints.

Abstract: A dental attachment placement device comprises a plurality of articulated registration elements shaped for placement on a plurality of teeth, which can facilitate placement, accommodate tooth movement, and improve alignment of the registration elements with the teeth, so as to accurately position an attachment for placement. The plurality of registration elements may comprise one or more attachment supports and one or more retention supports extending from the plurality of registration elements. A dental attachment can be removably coupled to the attachment support. The plurality of registration elements and attachment supports may be located on opposing sides of one or more teeth in order to maintain placement prior to adhering the attachment to the tooth. In some embodiments, each of the plurality of registration elements comprises a tooth registration surface shaped to engage the tooth with a specific position and orientation for accurate positioning of the attachment.

Abstract: 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 patient, 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.

Abstract: Apparatuses and methods for assessing a dental x-ray image and predicting tooth eruption and/or exfoliation. The apparatuses may use one or more trained neural networks to assess a patient's x-rays as well as dental measurements determined from the patient's x-rays to predict approximately when a permanent tooth may erupt to replace a baby tooth. The neural networks may be trained using a data training set of x-ray images and accompanying dental measurement data.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present disclosure provides methods, computing device readable medium, and devices for dental appliances with repositioning jaw elements. An example of a method can include moving at least one tooth with a dental appliance having a first shell configured to receive a plurality of teeth of a patient's upper dentition and separating an upper dentition of a patient from a lower dentition of the patient utilizing the dental appliance. The dental appliance may interface a first surface of a first repositioning jaw element of the first shell with a second surface of a second repositioning jaw element of a second shell of the dental appliance. The dental appliance separates occlusal surfaces of the plurality of teeth of the patient's upper dentition from occlusal surfaces of the plurality of teeth of the patient's lower dentition as the patient moves to a fully engaged sagittal jaw position.

Abstract: Apparatuses and methods for customized retainers to prevent relapse. In particular, described herein are customized retainers, and methods and apparatuses for making customized retainers that specifically reenforce and prevent movement of one or more teeth having a higher likelihood of relapse following completion of an orthodontic treatment plan.

Abstract: 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, and 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 patient. 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.

Abstract: 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 patient, 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.