3Shape A/s

The present disclosure is to a computer-implemented method for flattening a digital 3D mesh representing a dental object. The method comprises obtaining the digital 3D mesh. The method comprises determining a circumferential mesh boundary in the digital 3D mesh, wherein the mesh boundary comprises multiple boundary vertices surrounding multiple inner vertices. The method comprises determining a target shape with a circumferential target boundary, wherein the target shape is planar. The method comprises for each vertex of the boundary vertices, performing coherent mapping to an anchor point on the target boundary corresponding to the respective vertex. The method comprises for each vertex of the boundary vertices, translating the respective boundary vertex to its corresponding anchor point on the target boundary. The method comprises flattening the inner vertices to the target shape to generate a flattened mesh based on the anchor points.

An intraoral scanning system (100) is disclosed that includes an intraoral scanning device (102) configured to acquire first and second light information reflected from a dental object (101). The system (100) further includes processors connected to the intraoral scanning device (102), with at least one of the processors being a remote computer (104). The processors may be configured to determine, in real-time, surface information from the first light information; generate a three-dimensional (3D) surface model (108) of the dental object (101) using the surface information; and determine internal information from the second light information. A wireless communication interface (106) communicates between the device (102) and the remote computer (104) over a wireless communication protocol including a first and a second wireless network protocol. The surface information is transmitted via the first wireless network protocol while the internal information is transmitted via the second wireless network protocol.

A computer-implemented method is disclosed, the method comprising receiving, by a mobile application, a diagnostic intraoral scan data of a patient's oral situation, wherein the diagnostic intraoral scan data comprises a digital 3D dental model (101) of the patient's oral situation, a quantitative data for at least two dental conditions associated with the patient's oral situation, a qualitative data for the at least two dental conditions, and a mesh overlay for each of the at least two dental conditions. The mesh overlay is configured, when applied to the digital 3D dental model (101), to visualize the quantitative data and the qualitative data on the digital 3D dental model. The method further comprises generating, by the mobile application, an individual dental profile (300) for the patient based on the quantitative data and the qualitative data, obtaining, by the mobile application, metadata (400) associated with the at least two dental conditions, wherein the metadata (400) is curated based on the individual dental profile (300) and displaying, in a user interface (100) of the mobile application, the digital 3D dental model (101) with the applied mesh overlay, and further displaying the metadata (400).

The present disclosure provides techniques for displaying a user interface associated with a dentition (110). Method (1000) for displaying the user interface includes receiving (1002) scan data (204A) associated with the dentition of a patient (112), generating (1004) a three-dimensional (3D) model of the dentition based on the scan data, determining (1006) anomaly data associated with the dentition based on the 3D model, generating (1008) first interface data (308A) associated with a first user interface (310A) based on the 3D model and/or the anomaly data, and outputting (1010) the first user interface based on the first interface data. The first user interface comprises user-selectable interface elements. Each of the user-selectable interface elements is selectable to generate an anomaly view (702) of the dentition, such that the anomaly view indicates a corresponding dental anomaly within the 3D model.

According to an embodiment, an intraoral scanning system is disclosed. The intraoral scanning system may comprise an intraoral scanning device configured to acquire light information reflected from a dental object during a scanning session, one or more processors operably connected to the intraoral scanning device, and at least one of the one or more processors includes a client device and one or more servers. The one or more processors are configured to determine surface information from the light information, and generate a three-dimensional (3D) surface model of the dental object using the surface information, a wireless communication interface configured to transmit via a first wireless communication protocol a unique identifier of the intraoral scanning device, and wherein the client device is configured to receive the unique identifier via the first wireless communication protocol, and a wireless connection is established between the client device and the intraoral scanning device via the one or more servers upon a confirmation of the unique identifier by the client device.

A computer-implemented method for comparing, in a user interface of a mobile application, a digital 3D dental model of a patient's oral situation to a user's oral situation is disclosed. The method comprises receiving, in the user interface (800), a selection of a dental condition of the at least two dental conditions, displaying buttons (602, 603, 604) representative of digital 3D dental models available for comparison, wherein the buttons comprise a first button (602) associated with a first digital 3D dental model (601) representative of a patient's oral situation at a first point in time and a second button (603) associated with a second digital 3D dental model representative of a patient's oral situation at a second point in time. The method further comprises receiving, in the user interface (800), a selection of the first button (602), and in response, displaying the first digital 3D dental model (601) in a first area (804) of the user interface (800), such that the displayed first digital 3D dental model (601) visualizes the selected dental condition corresponding to the first point in time. Further, the method comprises arranging, in the user interface (800), a camera button (802) configured, when engaged, to activate a front camera (801) of a mobile device hosting the mobile application, detecting engaging of the camera button (802) by a user, and in response, activating the front camera (801), displaying, in a second area (803) of the user interface (800), a camera stream from the front camera (801) such that the user, when facing the front camera (801), may compare the user's dental situation to the first digital 3D dental model (601).

A computer-implemented method for comparing digital 3D dental models of a patient's oral situation in a user interface (600) of a mobile application is disclosed, the method comprising receiving, in the user interface (600) of the mobile application, a selection of a dental condition of the at least two dental conditions, displaying buttons (602, 603, 604) representative of digital 3D dental models available for comparison, wherein the buttons comprise a first button (602) associated with a first digital 3D dental model (601) representative of a patient's oral situation at a first point in time and a second button (603) associated with a second digital 3D dental model representative of the patient's oral situation at a second point in time. The method further comprises receiving, in the user interface (600), a selection of the first button (602), and in response, displaying the first digital 3D dental model (601) in the user interface (600), such that the displayed first digital 3D dental model (601) visualizes the selected dental condition corresponding to the first point in time. Further, the method comprises launching a compare mode of the mobile application by detecting a drag command performed by a user of the mobile application, the drag command comprising a drag motion, in the user interface (600), from a compare button (606) to the second button (603), and in response to the drag command, displaying a transition from the first digital 3D dental model (601) to the second digital 3D dental model, wherein the second digital 3D dental model visualizes the selected dental condition corresponding to the second point in time.

Disclosed is a computer-implemented method for automatically designing a dental restoration for placing in a dentition of a patient, the method comprising the steps of: obtaining digital three-dimensional (3D) surface data representing a surface of the dentition of the patient in 3D space, wherein the surface comprises a preparation surface configured to receive the dental restoration; pre-processing the 3D surface data to generate a discretized 3D model comprising granularity elements defining a discretized representation of at least a part of the 3D surface data, wherein the at least a part of the 3D surface data comprises the preparation surface; pre-processing the discretized 3D model to generate an encoded representation of the discretized 3D model, wherein the encoded representation comprises the granularity elements, and each granularity element is encoded with at least distance information from the point to at least one functional surface; processing the encoded representation by using a trained model configured to process the encoded representation; receiving an output of the processing from the trained model, wherein the output comprises at least a part of the dental restoration; and automatically designing the dental restoration based on the received output.

Disclosed is a computer-implemented method comprising the steps of obtaining first data representing a surface of a dental object, wherein the first data is three-dimensional (3D) surface data; obtaining first augmentation data indicating an estimated presence of a second set of dental conditions in the second data; obtaining second data representing an internal volume of the dental object; obtaining second augmentation data indicating an estimated presence of a second set of dental conditions in the second data; obtaining a user input indicative of a desired inspection site of the dental object; determining a part of the first data corresponding to the desired inspection site; determining a part of the second data corresponding to the desired inspection site; rendering, in a graphical-user interface (GUI), a first view comprising the part of the first data corresponding to the desired inspection site and rendering with a visual indication of at least a part of the first augmentation data corresponding to the desired inspection site; and rendering, in the GUI, a second view comprising the part of the second data corresponding to the desired inspection site with a visual indication of at least a part of the second augmentation data corresponding to the desired inspection site.

Disclosed is a computer-implemented method comprising the steps of obtaining first data representing a surface of a dental object, wherein the first data is three-dimensional (3D) surface data; obtaining first augmentation data indicating an estimated presence of a second set of dental conditions in the second data; obtaining second data representing an internal volume of the dental object; obtaining second augmentation data indicating an estimated presence of a second set of dental conditions in the second data; obtaining a user input indicative of a desired inspection site of the dental object; determining a part of the first data corresponding to the desired inspection site; determining a part of the second data corresponding to the desired inspection site; rendering, in a graphical-user interface (GUI), a first view comprising the part of the first data corresponding to the desired inspection site and rendering with a visual indication of at least a part of the first augmentation data corresponding to the desired inspection site; and rendering, in the GUI, a second view comprising the part of the second data corresponding to the desired inspection site with a visual indication of at least a part of the second augmentation data corresponding to the desired inspection site.