Abstract: Systems and methods for generating a three-dimensional (3D) model of a user's dental arch based on two-dimensional (2D) images include a model training system and a model generation system where the model training system is configured to receive a plurality of data packets of a training set, identify, a plurality of correlation points between 2D training images and a 3D training model of the respective dental arch for each data packet, and generate a machine learning model configured to generate 3D models of dental arches from 2D images of the dental arches. The model generation system is configured to receive one or more 2D images of a dental arch of a user obtained by a portable device of the user, and generate a 3D model of the dental arch of the user by applying the one or more 2D images of the dental arch to the machine learning model.

Abstract: An apparatus includes a toothbrush head having a stem, an appliance brush, and a body configured to be releasably coupled with either one of the toothbrush head and the appliance brush. The body includes an extension and at least a portion of a side of the extension is configured to be covered by the stem when the toothbrush head is coupled with the body. The appliance brush is configured to couple to the extension when the toothbrush head is not coupled with the body.

Abstract: A method includes sending a dental impression kit to a patient including dental trays of different sizes. The method includes receiving one or more dental impressions created using one or more dental trays having been selected by the patient from the plurality of dental trays, providing treatment plan data and a size indication to a provider computing device, receiving a communication approving the treatment plan, and manufacturing a plurality of dental aligners specific to the patient and being configured to reposition one or more teeth of the patient.

Abstract: A cleaning device includes a body, a cover, a germicidal lamp, and a vibration mechanism. The body includes a cavity configured receive a fluid, a first dental appliance, and a first portion of a second dental appliance. The cover is coupled to the body and configured to selectively move between an open position and a closed position. The cover includes two holes that can each retain the second dental appliance so the first portion of the second dental appliance is positioned within the cavity and a second portion of the second dental appliance is positioned external to the cavity and the cover. The germicidal lamp is coupled to the cover and configured to provide a sanitizing light to the first dental appliance and the first portion of the second dental appliance positioned within the cavity. The vibration mechanism is configured to vibrate the body and the dental appliances.

Abstract: A method includes receiving, by a computing system, a plurality of digital models corresponding to a plurality of dental aligners each configured to move one or more teeth based on one or more treatment plans; analyzing, by the computing system, a geometric characteristic of the plurality of digital models; preparing, by the computing system, the plurality of digital models for manufacturing the plurality of dental aligners by adding one or more support structures to at least one digital model of the plurality of digital models based on the analysis; forming, via additive manufacturing, the plurality of dental aligners including at least one dental aligner with the one or more support structures; receiving, by a laser system, the at least one dental aligner; and cutting, by the laser system, the one or more support structures from the at least one dental aligner.

Abstract: Systems and methods for generating a 3D model of a dentition are disclosed herein. A method includes generating a first 3D model of a dentition. The dentition includes a model tooth in a first position. The method includes receiving a digital representation comprising a patient tooth. The patient tooth corresponds to the model tooth of the first 3D model. The method includes determining a virtual camera parameter associated with the digital representation. The method includes adjusting the virtual camera parameter to determine a 3D position of the corresponding patient tooth. The method includes moving the model tooth of the first 3D model from the first position to a second position. The second position corresponds to the 3D position of the corresponding patient tooth. The method includes generating a second 3D model comprising the model tooth of the first 3D model in the second position.

Abstract: A method includes receiving representations of a first set of dental impressions including a first dental impression of an upper dental arch of a user and a second dental impression of a lower dental arch of the user having been created using contents from an initial dental impression kit sent to the user, identifying a defective dental impression, sending a retake dental impression kit to the user where the retake dental impression kit includes a set of dental trays consisting of dental trays corresponding to the dental arch associated with the defective dental impression, receiving representations of a second set of dental impressions of the dental arch associated with the defective dental impression, and manufacturing, based on the second set of dental impressions, a plurality of dental aligners specific to the user and being configured to reposition one or more teeth of the user.

Abstract: A whitening light includes a mouthpiece having a light array arranged along the mouthpiece for directing light onto an exposed portion of teeth of a user. The whitening light includes a rear portion comprising a first power source communicably coupled to the light array and a first charging mechanism configured to receive power transferred from a second charging mechanism located on a case for the whitening light. The first power source includes a rechargeable battery charged by the second charging mechanism to a power output sufficient to power the whitening light to emit light configured to whiten teeth upon selection of a button on the rear portion of the whitening light to commence a treatment session, to emit the light for a predetermined duration corresponding to a duration of the treatment session, and to automatically switch the light array to an off-setting following expiration of the predetermined duration.

Abstract: A distributed system includes one or more servers configured to provide computing devices access to portals hosted by the one or more servers, where the portals include a patient intake portal accessible by a first computing device located at an office of an intake dentist or orthodontist, and an approving portal accessible by a second computing device remote from the first computing device. The distributed system includes a dental aligner fabrication system including a fabrication computing device and dental aligner fabrication equipment. The patient intake portal is configured to provide a plurality of status updates to the intake dentist or orthodontist regarding a status of the patient, where the plurality of status updates include an indication that the dental aligners have been sent to the patient.

Abstract: A 3D scanning toolkit to perform operations that include: accessing a first data stream at a client device, wherein the first data stream comprises at least image data; applying a bit mask to the first data stream, the bit mask identifying a portion of the image data; accessing a second data stream at the client device, the second data stream comprising depth data associated with the portion of the image data; generating a point cloud based on the depth data, the point cloud comprising a set of data points that define surface features of an object depicted in the first data stream; and causing display of a visualization of the point cloud upon a presentation of the first data stream at the client device.

Abstract: An apparatus includes a toothbrush head configured to brush teeth, an appliance brush configured to brush a dental appliance, and a body configured to be releasably coupled with either one of the toothbrush head and the appliance brush such that the appliance brush and the toothbrush head are interchangeable. The body includes a vibration component configured to vibrate the toothbrush head or the appliance brush head when coupled with the body. When the appliance brush is coupled with the body, a greater portion of the body is exposed than when the toothbrush head is coupled with the body.

Abstract: A method may include generating a 2D blank that can form a 3D dental aligner via thermoforming. The 2D blank may include a first material that includes a first discontinuity. The 2D blank may include a second material integrally formed within the first discontinuity. The first material may have a higher stiffness than the second material. The method may include thermoforming the 2D blank to form the 3D dental aligner having variable stiffness.

Abstract: A method includes sending a dental impression kit to a user including dental trays of different sizes including a first set of dental trays having a first size and a second set of dental trays having a second size, a base putty, and a catalyst putty, where the base putty and the catalyst putty are mixable to form a putty mixture for creating dental impressions. The method includes receiving dental impressions created using the first set of dental trays, the first set of dental trays having been selected by the user based on a fit of a first dental tray of the first set on a dental arch of the user relative to a fit of a second dental tray of the second set, and manufacturing a plurality of dental aligners specific to the user and being configured to reposition one or more teeth of the user.

Abstract: Systems and methods for identifying tooth correspondences are disclosed. A method includes receiving a digital representation including patient teeth, and identifying a tooth outline from the digital representation. The method includes retrieving a 3D mesh including model teeth. The method includes projecting a first mesh boundary onto a patient tooth and modifying the first projected mesh boundary to match the first tooth outline. The method includes identifying a first tooth point on the first tooth outline that corresponds with a first mesh point on the first projected mesh boundary. The method includes mapping the first tooth point to the 3D mesh. The method includes determining that the first and second tooth points correspond to a common 3D mesh point. The method includes modifying at least one of the digital representation or the 3D mesh based on determining the tooth points correspond to the common 3D mesh point.

Abstract: Systems and methods for identifying tooth keypoints are disclosed. A method includes receiving digital representations comprising patient teeth, and identifying a first tooth outline from a first digital representation and a second tooth outline from a second digital representation. The method includes retrieving a 3D mesh comprising model teeth. The method includes projecting a first mesh boundary onto a patient tooth and modifying the first mesh boundary to match the first tooth outline. The method includes identifying a first tooth point on the first tooth outline that corresponds with a first mesh point on the first mesh boundary. The method includes mapping the first tooth point to the 3D mesh. The method includes determining that the first and second tooth points correspond to a common 3D mesh point. The method includes designating the first tooth point as a keypoint. The method includes modifying a digital representation based on the keypoint.

Abstract: A distributed system includes one or more servers configured to provide computing devices access to portals hosted by the one or more servers, where the portals include a patient intake portal accessible by a first computing device located at an office of an intake dentist or orthodontist, and an approving portal accessible by a second computing device remote from the first computing device. The distributed system includes a dental aligner fabrication system including a fabrication computing device and dental aligner fabrication equipment. The patient intake portal is configured to provide a plurality of status updates to the intake dentist or orthodontist regarding a status of the patient, where the plurality of status updates include an indication that the dental aligners have been sent to the patient.

Abstract: A device for repositioning a patient's teeth includes a shell having a shape corresponding to the patient's teeth and including an inner surface, where the inner surface is configured to engage with the patient's teeth. The device also includes at least one region of the inner surface having a higher frictional coefficient than a remaining portion of the inner surface, and where the at least one region is configured to apply a force to at least one tooth of the patient's teeth, wherein the at least one region comprises a local variation in geometry relative to a remainder of the inner surface.

Abstract: A method of cutting a dental aligner includes identifying, for each tooth of a plurality of teeth of a model representative of a dentition of a user, a first point and a second point based on a line around tooth (LAT) for the tooth, determining a distance between the first point and a cut plane based on a characteristic of the dentition where the distance for a first is different than the distance for a second tooth, identifying a plurality of points on a first LAT of the first tooth based on the first cut plane and a plurality of points on a second LAT of the second tooth based on the second cut plane, and defining a cut line based on the plurality of points on the first LAT and the plurality of points on the second LAT.

Abstract: Systems and methods for intraoral scanning include determining, by an appointment management system, a condition that dental impressions have not been received from a user within a threshold time period where the user was provided with an in-home dental impression kit, generating and communicating a message to the user based on the condition where the message prompts the user to schedule an appointment at an intraoral scanning site, receiving a request to schedule an appointment at the intraoral scanning site where the intraoral scanning site has an intraoral scanner configured to conduct an intraoral scan of a mouth of the user, and conducting the intraoral scan using the intraoral scanner at the intraoral scanning site where the intraoral scan generates three-dimensional data of the mouth of the user.

Abstract: A method includes receiving, by a model generation engine, an image of a dental arch of a user, executing, by the model generation engine, a machine learning model that is trained to receive the image and output a representation of the image, where in at least one iteration during training, the machine learning model determines a difference between one or more features extracted from an iteration of the representation of the image and a corresponding one or more features extracted from the image, and the method further includes outputting, by the model generation engine, an output representation of the image.