Abstract: Described herein are systems and methods for marking models for dental aligner fabrication. A method for producing a physical model of teeth including a three-dimensional marking includes receiving a first digital model of teeth in an alignment position and selecting a location for marking a physical model of the teeth in the alignment position with a three-dimensional marking, the physical model to be fabricated based on the first digital model. The method also includes generating a second digital model of the teeth in the alignment position based on the first digital model, the second digital model representing the physical model and including the three-dimensional marking at the marking location, and using a three-dimensional fabrication method to fabricate the physical model including the three-dimensional marking from the second digital model.

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: Systems and methods include determining, by an appointment management system, a condition that an appointment to conduct an intraoral scan at an intraoral scanning site has been missed by a user, automatically generating a message to the user indicating that an at-home dental impression kit can be sent to the user based on determining that the appointment has been missed, and transmitting the automatically generated message to a communications device associated with the user.

Abstract: Technologies for merging three-dimensional models of dental impressions include a computing device that generates multiple three-dimensional models that are each indicative of a dental impression of a user's dental arch. The models may be generated by scanning the dental impressions. The computing device determines whether a model is indicative of the complete anatomy of the user's arch and, if not, merges multiple models with a merge strategy to generate a merged model. The models may be merged by aligning geometry of the models, selecting geometry from one of the models using the merge strategy, and generating the merged model that includes the selected geometry. The merge strategy may include selecting from the model associated with the dental impression that includes the most detail of the user's anatomy or selecting from the model with the greatest depth.

Abstract: A fixture plate includes a base having a contact face configured to support a dental model having a model identifier on a bottom surface. A bore extends through the base to one or more channels formed in the contact face and that extend from the bore. A viewing port extends through the base and has a transparent material inserted therein to seal the viewing port at the contact face. The viewing port and the transparent material enable the model identifier to be accessed from underneath the contact face when the dental model is on the contact face. A protrusion extends from the contact face and is configured to interface with an aperture of the dental model to retain the dental model in a specific orientation. The channels are configured to provide a suction force applied through the bore to hold the dental model against the contact face.

Abstract: A method of cutting a dental aligner includes identifying a gingival line in a model representative of a user's dentition where the gingival line is an interface of a teeth portion and a gingival portion of the model, generating a plurality of points in the gingival portion of the model where each point of the plurality of points is generated at a threshold distance from the gingival line, generating a cut line that intersects at least some of the points of the plurality of points, and controlling a cutting system to cut the dental aligner along the cut line.

Abstract: A method for analyzing a quality of a dental aligner includes receiving, by a processor, a digital dental aligner generated based on a fabricated dental aligner. The method also includes analyzing, by the processor, the digital dental aligner to identify a quality characteristic of the fabricated dental aligner. The method also includes flagging, by the processor, the fabricated dental aligner based on the identified quality characteristic.

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 generation system that receives one or more images of a dental arch of a user. The model generation system generates a point cloud based on the images of the dental arch of the user. The model generation system generates a 3D model of the dental arch of the user based on the point cloud. A dental aligner is manufactured based on the 3D model of the dental arch of the user. The dental aligner is specific to the user and configured to reposition one or more teeth of the user.

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 computing device for dental impression scan merging includes a processor configured to generate a first model and a second model including a first and second plurality of geometric faces indicative of a first and second dental arch of a user. The processor generates a first point cloud of the first model and a second point cloud of the second model. The processor aligns the first point cloud and the second point cloud. The processor merges the first and second model to generate a merged model where merging the first and second model is based on the alignment of the first point cloud and the second point cloud.

Abstract: A system comprising a scanning device is operable by a user to scan teeth of the user to acquire images of the teeth. The scanning device comprises a camera operable to acquire the images, a guide configured to orient the camera with respect to the teeth to facilitate acquisition of the images, and a server system configured to receive the images acquired by the scanning device and to develop a treatment plan for the user based on the received images.

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: An apparatus includes a toothbrush head configured to brush teeth and a body releasably coupled with the toothbrush head. The body includes a vibration component configured to vibrate the toothbrush head, and an element configured to operate the vibration component. The apparatus includes an appliance brush interchangeable with the toothbrush head and configured to brush a dental appliance.

Abstract: A storage case for a dental appliance includes a storage portion, a cover, and a location device. The storage portion includes a compartment that is configured to hold a dental appliance of a user. The cover is coupled to the storage portion and configured to selectively move between an open position and closed position. The cover permits access to the compartment when in the open position and restricts access to the compartment when in the closed position. The location device includes a communications device and a speaker. The speaker is configured to generate a sound based on the communications device receiving a signal from a mobile device of the user.