Abstract: A series of orthodontic aligners may be produced by a process including receiving a first position of at least one tooth of a patient for a first treatment stage of plurality of orthodontic treatment stages, determining a movement vector magnitude and direction for moving the at least one tooth from the first position towards a second position, analyzing a surface of the at least one tooth of the patient based on the determined movement vector, designing a first orthodontic aligner of the series of orthodontic aligners based on the analysis of the surface of the at least one tooth of the patient so that a physical orthodontic aligner, when in position on teeth of the patient at the first treatment stage, moves the at least one tooth from the first position towards the second position along the determined movement vector, and fabricating the physical orthodontic aligner.

Abstract: A method for fabricating an oral appliance may include forming, using a 3D additive manufacturing process, a polymeric shell having a plurality of teeth engaging structures shaped to engage the teeth of the patient and forming, using the 3D additive manufacturing process, a force generating component coupled to the plurality of teeth engaging structures, the force generating component may be configured to generate a force in response to a stimulus in order to reposition one or more teeth of the patient. The polymeric shell, the plurality of teeth engaging structures, and the force generating component may include a sequentially polymerized plurality of layers directly fabricated together using the 3D additive manufacturing process.

Abstract: A method of three-dimensional (3D) printing includes heating a photo-curable material and extruding the photo-curable material from a nozzle to form a first layer of an object according to a digital file, wherein the first layer has a first shape specified by the digital file, and wherein the first shape has a first minimum line width based on a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the digital file or an additional digital file to cure a portion of the first layer, wherein the cured portion of the first layer has a second shape, wherein the second shape may comprise features that are smaller than the first shape.

Abstract: A series of patient-customized orthodontic aligners may be produced by a process including receiving a digital model of a patient's tooth, determining a force system for eliciting a tooth movement, and designing a patient-customized attachment configured to engage at least one of the series of patient-customized orthodontic aligners when worn by a patient and apply a repositioning force to the patient's tooth corresponding to the force system. The process may also include designing the at least one of the patient-customized orthodontic aligners to engage the patient-customized attachment when worn by the patient, the at least one of the patient-customized orthodontic aligners having a shape customized responsive to the attachment, the digital model and the force system. The process may also include fabricating the series of patient-customized orthodontic aligners including the at least one of the patient-customized orthodontic aligners.

Abstract: A dental appliance for positioning a patient's teeth includes a removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to directly receive at least some of the patient's teeth and apply a resilient positioning force to the patient's teeth. The appliance includes a hard polymer layer having a hard polymer layer elastic modulus disposed between a first soft polymer layer having a first soft polymer layer elastic modulus and a second soft polymer layer having a second soft polymer layer elastic modulus. The hard polymer layer elastic modulus is greater than each of the first soft polymer layer elastic modulus and the second soft polymer layer elastic modulus. At least one of the first soft polymer layer and the second soft polymer layer has a flexural modulus of greater than about 35,000 psi.

Abstract: Systems for fabricating orthodontic appliances are provided. In some embodiments, a system includes a build platform configured to receive a polymerizable composition, the polymerizable composition including a first polymerizable component and a second polymerizable component, the polymerizable composition characterized by an initial ratio of the first polymerizable component to the second polymerizable component.

Abstract: A method of anonymizing clinical data may include receiving a three-dimensional model of representation data corresponding to a body part. The representation data may include a clinically relevant region and an anonymization region. The method may also include extracting, from the representation data, clinical representation data corresponding to the clinically relevant region of the representation data and generating artificial representation data corresponding to the anonymization region of the representation data. The method may also include creating, based at least on the clinical representation data and the artificial representation data. The anonymized representation data may substantially preserve the clinically relevant region.

Abstract: Systems, methods, and computer-readable media for managing customer contact based on context. Specifically, a provider in a provider network associated with provisioning a specific product to a specific user can be identified. Context information related to the provider provisioning one or more products in relation to one or more workflows for provisioning the one or more products through the provider network can be accessed. A model can be applied based on the context information to identify circumstances associated with a likelihood that the provider will contact an enterprise of the provider network with respect to provisioning of the specific product to the specific user. As follows, performance of one or more remedial actions through the enterprise to address the provider contacting the enterprise can be facilitated based on the circumstances associated with the likelihood that the provider will contact the enterprise of the provider network.

Abstract: An intraoral scanner system includes an intraoral scanner having an imaging device and a sensing face, and a computing device, communicatively coupled to the intraoral scanner. The computing device receives a first intraoral images of a three-dimensional intraoral object of a patient generated by the intraoral scanner corresponding to an intraoral scanning of the three-dimensional intraoral object of the patient. The computing device registers a first intraoral image of the first intraoral images relative to a second intraoral image of the first intraoral images using a model of the three-dimensional intraoral object that existed prior to the intraoral scanning.

Abstract: A dental scanning system comprises an intraoral scanner and one or more processors. The intraoral scanner comprises one or more light projectors configured to project a pattern (comprising a plurality of pattern features) on a surface of a dental object, and two or more cameras configured to acquire one or more sets of images, wherein each set of images comprises at least one image from each camera, and wherein each image includes at least a portion of the projected pattern. The processors are configured to determine one or more image features within each set of images, solve a correspondence problem within each set of images such that points in 3D space are determined based on the image features, wherein said points form a solution to the correspondence problem, and wherein the correspondence problem is solved for groups of pattern features, and generate a digital 3D representation of the dental object using the solution to the correspondence problem.

Abstract: The present disclosure provides methods, devices, and systems for the bonding of attachments for use with dental appliances. For instance, an attachment template tray system may include a template body and a light source tray. Electronic circuitry of the light source tray may be configured to activate, based on a signal from a sensor assembly, radiation source(s) of the light source tray when the light source tray is within a threshold distance of the template body. The template body may include an orthodontic attachment with a release layer covering an engagement surface. Radiation sources of the light source tray may be configured to emit a first range of wavelengths of light for curing a light curable adhesive coating on the orthodontic attachment and a second range of wavelengths of light for degrading the release layer.

Abstract: Systems, methods, and devices for post-processing additively manufactured objects are disclosed herein. In some embodiments, a method includes receiving a plurality of additively manufactured objects having excess material thereon. The method can include removing the excess material from the plurality of additively manufactured objects by rotating the plurality of additively manufactured objects. The method can also include adjusting an environmental temperature while rotating the plurality of additively manufactured objects according to a dynamic temperature profile that facilitates removal of the excess material from the plurality of additively manufactured objects. The dynamic temperature profile can include (a) a first temperature configured to decrease a viscosity of the excess material, and (b) a second temperature configured to increase a stiffness of the plurality of additively manufactured objects.

Abstract: An intraoral scanning system comprises an elongate handheld wand with a probe at a distal end, a structured light projector configured to project a uniform structured light pattern onto an object, a plurality of cameras configured to capture points of the uniform structured light pattern projected onto the object by the structured light projector, and one or more processors. The one or more processors are configured to determine a correspondence between projected points in the uniform structured light pattern generated by the structured light projector and captured points of the uniform structured light pattern captured by the plurality of cameras viewing the uniform structured light pattern projected onto the object, and to use triangulation and the determined correspondence to determine three-dimensional points in space associated with the captured points of the uniform structured light pattern captured by the plurality of cameras.

Abstract: A system for tooth shade imaging in dental treatment may include one or more processors and memory having instructions that when executed by the one or more processors may cause the system to receive scan data of a patient's dentition, determine that a tooth of interest for shade capture is within a field of view of a shade capture device, capture a first shade of the tooth of interest before tooth preparation, capture a second shade of the tooth of interest after tooth preparation, generate a digital model of the tooth of interest after tooth preparation, and model a third shade resulting from placing a prosthetic on the tooth of interest after tooth preparation using the digital model of the tooth of interest after tooth preparation including the second shade and a digital model of the prosthetic.

Abstract: A method may include receiving a digital model of a dental appliance, the digital model may have a plurality of caps. Each cap of the plurality of caps may represent a set of contact points on a tooth. The digital model may have a plurality of links. Each link of the plurality of links may represent a connection between a plurality of caps. The method may include generating a relaxed model of a dental appliance using the digital model of the dental appliance. The method may also include generating a deformed model of the dental appliance using the digital model of the dental appliance and transforming the relaxed model to the deformed model to generate a plurality of parameters for moving the teeth of the patient towards a target tooth arrangement.

Abstract: An intraoral device for use in treating a sleep apnea condition may include an intraoral device body, a first advancement structure configured to be coupled to a first jaw of a patient, and an intraoral actuator coupled to the first advancement structure. The intraoral actuator may be configured to displace a lower jaw of the patient from a first position to a second position in order to treat the sleep apnea condition. Displacing the lower jaw of the patient may include advancing the lower jaw from the first position to the second position with the first intraoral actuator acting against the first advancement structure. The intraoral actuator may displace the lower jaw of the patient based at least in part on data from at least one sensor.

Abstract: Intraoral scanning systems configured to perform computer-implemented methods for identifying dental features. The methods may include engaging a trained machine learning network to identify one or more dental features in one or more regions of a patient's dentition. Each of the dental features may be present in at least one of multiple records. Each of the records may include multiple images of the patient's dentition and may be taken with a different imaging modality. The confidence score may be determined or adjusted using a 3D model of the patient's dentition. The confidence score may be determined or adjusted based on the region of the patient's dentition within each record. The methods may include displaying an indicator of each dental feature that has a confidence score that is above a threshold on the 3D model of the patient's dentition, and modifying the display as a user adjusts the threshold.

Abstract: An intraoral scanner comprises a housing, a light source for generating light, an optics system for focusing the light, a detector for detecting returning light reflected off an intraoral object, and a focus shifting mechanism configured to shift a focal plane of the optics system. The optics system is configured such that, after having passed through the optics system, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.

Abstract: Methods and systems (including software) for creating a treatment plan to align a patient's teeth using a plurality of removable aligners to be worn in sequential stages. These methods and systems may generate a plurality of potential treatment plan variations. Each variation may be optimized to best address the user's treatment goals, as well as approximating as closely as possible an ideal or target final position.