Automatic calibration of intraoral 3D scanner
Granted: November 12, 2024
Patent Number:
12143558
An intraoral scanner comprises one or more structured light projectors and two or more cameras, where each structured light projector projects a pattern of light onto an intraoral three-dimensional (3D) surface and the two or more cameras capture one or more sets of images, wherein each image includes at least a portion of the projected pattern of light. A processor solves a correspondence problem within a set of images of the one or more sets of images such that points in 3D space are…
Segmentation quality assessment
Granted: November 12, 2024
Patent Number:
12138137
A method for determining tooth numbers of teeth within a dental arch includes receiving a digital scan of a patient's dentition, detecting a cusp associated with at least one tooth in the digital scan, where the cusp is detected based at least in part on a radius of a surface of the cusp, matching a molar shape of the at least one tooth, and identifying the patient's molar tooth based on the molar shape.
Automatic generation of prosthodontic prescription
Granted: November 12, 2024
Patent Number:
12138013
A processing device may receive a plurality of intraoral scans of the patient that were generated by an intraoral scanner, determine a three-dimensional surface of at least a portion of one or more dental arch of the patient using the plurality of intraoral scans, automatically determine whether a restorative dental object is represented in at least one of the three-dimensional surface or one or more intraoral scans of the plurality of intraoral scans, and automatically generate a…
Rendering of post treatment smile image
Granted: November 5, 2024
Patent Number:
12133783
Embodiments may include: receiving a facial image comprising a 2D depiction of a person's teeth at a first arrangement; receiving a tooth model comprising a 3D depiction of the person's teeth at a second arrangement; obtaining color information from the facial image, wherein the color information represents a color scheme of the person's teeth at the first arrangement; and generating a photo-realistic two-dimensional depiction of the person's teeth at the second arrangement using the 3D…
Automatic determination of workflow for restorative dental procedures
Granted: November 5, 2024
Patent Number:
12133710
A method of generating a 3D model includes: determining a 3D surface comprising a preparation tooth using a first plurality of intraoral scans generated by an intraoral scanner at a first time; receiving one or more additional intraoral scans of the preparation tooth that were generated by the intraoral scanner at a second time; determining a change to one or more portions of the preparation tooth between the three-dimensional surface and the one or more additional intraoral scans;…
Nonlinear tooth modeling for orthodontic treatment
Granted: October 29, 2024
Patent Number:
12127906
A method for digital treatment planning may include defining a set of contact points on a tooth of a patient's dentition and a plurality of connections between pairs of the plurality of contact points. The plurality of connections may include Hookian stiffness parameters of a dental appliance between the plurality of contact points. The method may also include generating a relaxed model of a dental appliance using the plurality of contact points and the plurality of connections. The…
Systems and methods for the design and fabrication of provisional and permanent crowns
Granted: October 29, 2024
Patent Number:
12127898
A method for preparing a tooth crown may include generating a 3D model of an external surface of a patient's tooth and generating a 3D model of an external surface of a first crown based on the 3D model of the external surface of the patient's tooth. The method may also include preparing the patient's tooth to receive the first crown while generating the 3D model of the external surface. A 3D model of the prepared tooth my be generated. A 3D model of an internal surface of the first…
Dental diagnostics hub
Granted: October 29, 2024
Patent Number:
12127814
A method includes receiving intraoral scan data of an intraoral cavity of a patient; processing the intraoral scan data to determine, for each dental condition of a plurality of dental conditions, whether the dental condition is detected for the patient and a severity of the dental condition; and presenting indications of the plurality of dental conditions together in a graphical user interface (GUI), wherein the indications show, for each dental condition of the plurality of dental…
Orthodontic systems with elastic attachments
Granted: October 22, 2024
Patent Number:
12121412
Systems for orthodontic treatments are provided. In some embodiments, a system includes an attachment configured to be coupled to a tooth of a patient, the attachment having a first elasticity. The system can also include an orthodontic appliance having a shell with a plurality of teeth-receiving cavities shaped to reposition the patient's teeth from a first arrangement toward a second arrangement. The shell can have a second elasticity less than the first elasticity. The orthodontic…
Medical imaging data compression and extraction on client side
Granted: October 22, 2024
Patent Number:
12125581
Apparatuses and computer-implemented methods for compression and extraction of three-dimensional (3D) volumetric imaging data, including in particular medical and dental imaging data, that may receive the 3D volumetric image data and preparing compressed 3D volumetric image data for compression by analyzing a relevant region of the 3D volumetric image data. The method may further include compressing, into compressed 3D volumetric image data, the pre-processed static 3D volumetric image…
Systems and method for additive manufacturing of dental devices using photopolymer resins
Granted: October 15, 2024
Patent Number:
12115719
Strategies that reduce shrinkage and ultimately warping of parts that are directly fabricated from photopolymer resins. This increases the accuracy of directly fabricated parts, which is essential for patient specific applications. Implementing these strategies can reduce the need for directly fabricated parts to have supporting structures, which can reduce pre-processing and post-processing steps and facilitate an easier route for production level scale of additive manufacturing.
Cryptographically secured dental treatment planning
Granted: October 8, 2024
Patent Number:
12109091
A method of cryptographically secured digital dental treatment planning comprises: receiving, at an intraoral scanning system, an intraoral scan of a patient's dentition, wherein the intraoral scan comprises a three-dimensional (3D) surface representing the patient's dentition at a first arrangement; encrypting, at the intraoral scanning system, the intraoral scan to create a cryptographically secured dental record of the patient's dentition; decrypting, at a treatment planning system,…
Palatal expanders for controlling crown tipping
Granted: October 8, 2024
Patent Number:
12109090
Series of apparatuses for expanding a patient's palate (“palatal expanders”), including rapid palatal expanders, wherein a left tooth engagement region and a right tooth engagement region are configured to add anti-tipping torque to at least one tooth. Left and right tooth engagement regions may include lingual surfaces with at least one lingual protrusion. Left and right tooth engagement regions may have buccally rotated cavities.
Individualized orthodontic treatment index
Granted: October 8, 2024
Patent Number:
12109089
Systems, methods, and non-transitory computing device readable media for determining an individualized orthodontic treatment index. One embodiment includes generating a target dental model by modifying an initial dental model, graphically marking dental references on the target dental model including assigning contact points between adjacent first and second teeth of the target dental model, generating a treatment outcome dental model representing the patient's dentition after at least a…
Clinically relevant anonymization of photos and video
Granted: October 1, 2024
Patent Number:
12106845
The disclosed systems and methods for anonymizing clinical data may include receiving representation data corresponding to a body part. The representation data may include a clinically relevant region and an anonymization region. The method may include extracting, from the representation data, clinical representation data corresponding to the clinically relevant region of the representation data and generating artificial representation data corresponding to the anonymization region of…
Compact intraoral 3D scanner
Granted: September 24, 2024
Patent Number:
12097009
An apparatus for intraoral three-dimensional (3D) scanning comprises a light source, a spatial pattern, a beam splitter, an optical system comprising fewer than 10 lenses, a mirror, an image sensor, and a depth scanning module. The depth scanning module is configured to axially translate one or more lenses of the optical system in the optical axis to change a focus setting of the optical system, wherein the depth scanning module is configured to axially translate the one or more lenses…
3D printed composites from phase separated materials
Granted: September 24, 2024
Patent Number:
12098227
The present disclosure provides methods, systems, devices, and kits for creating composite materials from a single resin, the composite materials having multiple continuous phases. The disclosure includes a process to three-dimensionally print objects (e.g., orthodontic appliances) with composite properties. In some aspects, the composite properties are formed from a single formulation with components that, when processed, have hard and soft continuous phases. In some aspects, the…
Hybrid 3D printing with photo-curable materials
Granted: September 24, 2024
Patent Number:
12097655
A method of 3D printing comprises extruding one or more photo-curable materials from a nozzle to form a first layer that has a first shape specified by the one or more digital files, wherein the first shape corresponds to a first minimum line width that is based on, and narrower than, a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the one or more digital files to cure a portion of the first layer to create a first cured…
Palatal expanders and methods of designing palatal expanders
Granted: September 24, 2024
Patent Number:
12097086
A series of palatal expanders and methods of designing palatal expanders, including rapid palatal expanders, where outer occlusal surfaces of a palatal expander are shaped to conform to a geometry of corresponding teeth surfaces of the patient's lower jaw to provide occlusion between occlusal surfaces and the corresponding teeth surfaces.
Palatal expanders with breach regions
Granted: September 24, 2024
Patent Number:
12097085
Palatal expander systems and methods. A palatal expander includes a palatal region connecting tooth engagement regions, where the palatal region is configured to apply a lateral force across a patient's palate when the tooth engagement regions are worn over the patient's teeth. Attachment regions on buccal sides of the tooth engagement regions are shaped and sized to engage with dental attachments bonded to the patient's teeth. At least one breach region corresponding to a thinned region…
