Abstract: A processing device receives first intraoral scan data of a first segment of a dental site and second intraoral scan data of a second segment of the dental site that does not stitch to the first intraoral scan data of the first segment of the dental site. The processing device generates a first virtual model of the first segment using the first intraoral scan data, and further generates a second virtual model of the second segment using the second intraoral scan data. The processing device arranges a spatial relationship of the first virtual model and the second virtual model.

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

Abstract: A scanning system comprises a handheld intraoral scanner configured to capture scan data of a dental site when operated in a scan mode, a computing device to generate a virtual 3D model of the dental site from the captured scan data; and a display to display the virtual 3D model. The scanner comprises one or more input devices configured to provide manual interaction with the computing device, where: a first type of activation of the one or more input devices causes the scanning system to enter the scan mode; and a second type of activation of the one or more input devices causes the scanning system to enter a second mode, wherein the computing device is to present a menu comprising menu options on the display while the scanning system is in the second mode, and wherein the scanner is usable to select among the presented menu options.

Abstract: A processing device receives a first intraoral image of a first region of a dental site and a second intraoral image of a second region of the dental site during an intraoral scan session. The processing device determines that the first intraoral does not overlap with the second intraoral image. The processing device registers the first intraoral image to the second intraoral image in a three-dimensional space according to a historical template, wherein the historical template is a virtual model of the dental site as generated from additional intraoral images taken during a previous intraoral scan session.

Abstract: A processing device receives a first virtual 3D model and a second virtual 3D model, each comprising one or more teeth of a patient. The processing device compares the first virtual 3D model to the second virtual 3D model and determines, as a result of the comparing, a difference between the first virtual 3D model and the second virtual 3D model at a dental site comprising a tooth of the one or more teeth. The processing device determines whether the difference comprises a first type of change to the tooth that is indicative of tooth wear or a second type of change to the tooth that is indicative of tooth movement associated with orthodontic treatment. Responsive to determining that the first difference comprises the first type of change to the first tooth, the processing device generates a first indicator of the tooth wear for the tooth.

Abstract: A method includes receiving first intraoral scan data of an intraoral site, the first intraoral scan data having been generated at a first time, receiving second intraoral scan data of the intraoral site, the second intraoral scan data having been generated at a second time that is later than the first time, and analyzing the second intraoral scan data of the intraoral site relative to the first intraoral scan data of the intraoral site. The method further includes identifying an area of interest (AOI) based on the analyzing and removing data for the AOI from at least one of the first intraoral scan data, the second intraoral scan data, or a three-dimensional (3D) model of the intraoral site generated from the first intraoral scan data and the second intraoral scan data.

Abstract: A method includes: displaying to a display a first indication of a first segment of a patient's oral cavity to be scanned; receiving a first user input via a hand held intraoral scanning device; causing the hand held intraoral scanning device to enter a scan mode; receiving one or more intraoral scans of the first segment; generating a three-dimensional (3D) model of the first segment based on the one or more intraoral scans; displaying to the display the 3D model of the first segment; receiving a second user input via the intraoral scanning device after receiving the one or more intraoral scans of the first segment; and displaying to the display an overlay including a first element corresponding to third user input for navigating to a next segment and a second element corresponding to fourth user input for navigating to a previous segment.

Abstract: Processing logic makes a comparison between first image data and second image data of a dental arch and determines a plurality of spatial differences between a first representation of the dental arch in the first image data and a second representation of the dental arch in the second image data. The processing logic determines that a first spatial difference is attributable to scanner inaccuracy and that a second spatial difference is attributable to a clinical change to the dental arch. The processing logic generates a third representation of the dental arch that is a modified version of the second representation, wherein the first spatial difference is removed in the third representation, and wherein the third representation comprises a visual enhancement that accentuates the second spatial difference.

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

Abstract: Processing logic makes a comparison between first image data and second image data of a dental arch and determines a plurality of spatial differences between a first representation of the dental arch in the first image data and a second representation of the dental arch in the second image data. The processing logic determines that a first spatial difference is attributable to scanner inaccuracy and that a second spatial difference is attributable to a clinical change to the dental arch. The processing logic generates a third representation of the dental arch that is a modified version of the second representation, wherein the first spatial difference is removed in the third representation, and wherein the third representation comprises a visual enhancement that accentuates the second spatial difference.

Abstract: A processing device receives an intraoral image of a first intraoral site. The processing device selects a portion of the intraoral image that depicts a portion of the first intraoral site. The processing device locks at least the portion of the intraoral image. The processing device may then generate a model comprising the first intraoral site based at least in part on the locked intraoral image, wherein the portion of the intraoral image is used for a first region of the model, and wherein data from one or more additional intraoral images that also depict the portion of the first intraoral site is not used for the first region of the model.

Abstract: A method includes receiving first intraoral scan data of an intraoral site, the first intraoral scan data having been generated at a first time, receiving second intraoral scan data of the intraoral site, the second intraoral scan data having been generated at a second time that is later than the first time, and analyzing the second intraoral scan data of the intraoral site relative to the first intraoral scan data of the intraoral site. The method further includes identifying an area of interest (AOI) based on the analyzing and removing data for the AOI from at least one of the first intraoral scan data, the second intraoral scan data, or a three-dimensional (3D) model of the intraoral site generated from the first intraoral scan data and the second intraoral scan data.

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

Abstract: Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.

Abstract: Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.

Abstract: Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.

Abstract: Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.

Abstract: A method includes receiving first scan data of an intraoral site and generating a three-dimensional (3D) model comprising the intraoral site. A user selection of a portion of the 3D model is received, and the portion of the 3D model is locked. After locking the portion of the 3D model, second scan data of the intraoral site is received. The 3D model is then updated with the second scan data, wherein a first portion of the second scan data that also depicts the locked portion of the 3D model is not used for updating the 3D model, and wherein a second portion of the second scan data is used for updating the 3D model, the second portion of the second scan data being combined with the first scan data to account for discrepancies of overlapping data between the first scan data and the second scan data.

Abstract: A method includes receiving first scan data of an intraoral site and generating a three-dimensional (3D) model comprising the intraoral site. A user selection of a portion of the 3D model is received, and the portion of the 3D model is locked. After locking the portion of the 3D model, second scan data of the intraoral site is received. The 3D model is then updated with the second scan data, wherein a first portion of the second scan data that also depicts the locked portion of the 3D model is not used for updating the 3D model, and wherein a second portion of the second scan data is used for updating the 3D model, the second portion of the second scan data being combined with the first scan data to account for discrepancies of overlapping data between the first scan data and the second scan data.

Abstract: A processing device receives a first intraoral image of a first region of a dental site and a second intraoral image of a second region of the dental site during an intraoral scan session. The processing device determines that the first intraoral does not overlap with the second intraoral image. The processing device registers the first intraoral image to the second intraoral image in a three-dimensional space according to a historical template, wherein the historical template is a virtual model of the dental site as generated from additional intraoral images taken during a previous intraoral scan session.