A method and system for identifying a gum line of a tooth model, a device, and a storage medium are disclosed. The method includes:extracting a plurality of feature points from the tooth model based on a curvature algorithm, pre-processing each of the feature points, and outputting a contour point group (S1); obtaining a target reference line from a pre-stored reference line pool withthe target reference line being matched witha shape parameter of the tooth model (S2); fitting the target reference line based on the contour point group by iterative operation, to generate a fitting reference line (S3); and performing smoothing processing on the fitting reference line by using a dimensionality reduction algorithm, to output the gum line (S4).

A method and system to automate an administration and restoration generation process that includes forming a spline along a jaw, proposing potential interdental gaps, weighting the potential interdental gaps to obtain one or more delimiters, automatically proposing tooth number probabilities, and computing a best fit tooth number distribution to generate a patient specific restoration.

Method and system for displaying an orthodontic related image including one or more image segments, selecting one or more movement indicators associated with a corresponding one or more of the image segments, and dynamically displaying a modified orthodontic related image based on the selected one or more movement indicators are provided.

A method for exporting a three-dimensional dental design model based on a three-dimensional dental library model (4) from an augmented reality application (6) which is adapted to visualize an image of the dental library model (4) rendered by a virtual camera with a preliminary pose and scale in a photo (2) of a face of a patient taken by a camera under a viewing axis to the face of the patient, the photo (2) including a mouth opening showing at least part of the present situation of the patient's dentition.

Disclosed herein are methods of manufacturing an oral appliance, the method comprising the steps of: a) importing into a computer aided design (CAD) computer program a digitized data set obtained from a three-dimensional scan of a patient's dentition; b) preparing a three-dimensional electronic model of the patient's dentition; c) subtracting the three-dimensional electronic model of the patient's dentition from an image of a solid block to obtain an appliance data set; and d) manufacturing a dental appliance in accordance with the appliance data set. Also disclosed are devices made by the above method, and methods of treating a condition, for example a sleep breathing disorder, by using a device made by the above method.

The invention relates to a method for constructing at least one dental prosthetic part or a bracket, with at least one adhesive surface, in which a 3D model is made of the dental prosthetic part. Recesses are constructed on the adhesive surface of the 3D model.

A method for analyzing a real dental situation of a patient. The method includes steps, as follows, in succession. At an updated instant, acquisition of an updated image representing a real dental scene as observed by an operator. Determination of a virtual dental scene as a function of the representation of the real dental scene on the updated image. Presentation of the virtual dental scene in transparent mode and overlaid on the real dental scene, or display of the updated image on a screen and presentation of the virtual dental scene overlaid with the representation of the real dental scene on the updated image displayed on the screen, in transparent mode or not on the representation.

Method for determining a manufacturing parameter for making an aligner with a desired aligner thickness using a thermoforming device operable for making the aligner by shaping a precursor aligner into the aligner using a mold representative of a dental archform, the method comprising: obtaining a 3D map associated with the dental archform; parsing the 3D map to determine a first property value and a second property value, the first property value being based on the 3D map and the second property value being derived from a 2D projection of the 3D map, and determining a thickness of the precursor aligner for obtaining the desired aligner thickness based on a ratio of the first property value and the second property value and a given value of an operating parameter of the thermoforming device; and sending instructions to the thermoforming device to make the desired aligner based on the determined operating parameter.

A method of reconstructing a gingival profile comprising generating, by a processor, a defined cross section of an arch form model extending through a tooth axis of a given tooth and a defined gingiva region; identifying within a tooth cross section profile of the defined cross section a set of reference points for generating a parametric curve defining at least a portion of the tooth cross section profile; generating the parametric curve based on the set of reference points; generating a first undefined cross section of the arch form model extending through the tooth axis of the given tooth and an defined gingiva region; constructing in the first undefined cross section, at least a portion of the parametric curve, thereby generating a first reconstructed gingival profile, and updating the arch form model with the first reconstructed gingival profile; and storing the arch form model including the reconstructed gingival profile.

A system for preparing a prescription for the use of one or more orthodontal correction devices, such as aligners, which allows for remote interaction and guidance by dental professionals with their patients. The aligner may include a sensor to detect when it is being worn for tracking compliance and determining when the next correction device within the prescription should replace the current correction device. A software application associated with the patient allows them to view and track their progress and to send data to their dental professional, and similarly the dental professional is alerted by the present invention when compliance issues or other issues may arise requiring intervention.