A61C9/0086

System and method for generating a virtual mathematical model of the dental (stomatognathic) system

A method for forming a virtual 3D mathematical model of a dental system, including receiving DICOM files representing the dental system; identifying number and location of voxels of tissues of the dental system; combining the voxels of the tissues into voxels of organs of the dental system; combining the organs into the virtual 3D mathematical model of the dental system, wherein the virtual 3D mathematical models supports linear, non-linear and volumetric measurements of the dental system; and presenting the virtual 3D mathematical model to a user. The DICOM files can be cone beam or multispiral computed tomography, MRT, PET and/or ultrasonography. The tissues include enamel, dentin, pulp, cartilage, periodontium, and/or jaw bone. The organs include teeth, gums, temporomandibular joint and/or jaw. A size of the voxels is typically between 40 μm and 200 μm.

INTRAORAL 3D SCANNING WITH AUTOMATIC CHARTING
20230000600 · 2023-01-05 ·

A method for intraoral imaging generates one or more output imaging signals from an intraoral probe and acquires multimodal image content from intraoral surface locations according to tissue response from the one or more imaging signals and associates spatial coordinates to the acquired multimodal image content. A surface contour of the patient dentition is generated by stitching the acquired multimodal image content and preserving the association of spatial coordinates with the stitched multimodal image content. Tooth outlines for one or more teeth are generated from the generated surface contour and the generated outlines arranged as a dental chart representing a spatial ordering of the one or more teeth and of supporting gum tissue adjacent to the teeth. The dental chart is populated by analyzing the acquired multimodal image content and associating the analysis to positions on the dental chart according to the preserved association of spatial coordinates and is displayed.

METHOD AND APPARATUS FOR DETERMINING DEPTH AND HEALTH OF PERIODONTAL SULCUS
20230055910 · 2023-02-23 ·

A non-invasive method for determining a gingival pocket depth includes seating a photoacoustic probe tray in a subject's mouth; transmitting photonic energy transgingivally; receiving generated ultrasonic signals; determining and processing the time of flight between transmitting and receiving and a relative amplitude of the ultrasonic signals to the transmitted photonic energy to determine densities and a topography of the subject's dental anatomy; determining a repeatable reference point; and measuring the gingival pocket depth in relation to the repeatable reference point. A system includes a transducer tray a biogel-containing bite wafer seated within the transducer tray; a processor; a memory; a user interface; and a visual display. The transducer tray has at least one embedded pulsed laser source and at least one embedded ultrasonic sensor.

Dynamic virtual articulator for simulating occlusion of teeth

Disclosed is a computer-implemented method of using a dynamic virtual articulator for simulating occlusion of teeth, when performing computer-aided designing of one or more dental restorations for a patient, where the method includes the steps of: providing the virtual articulator including a virtual three-dimensional model of the upper jaw and a virtual three-dimensional model of the lower jaw resembling the upper jaw and lower jaw, respectively, of the patient's mouth; providing movement of the virtual upper jaw and the virtual lower jaw relative to each other for simulating dynamic occlusion, whereby collisions between teeth in the virtual upper and virtual lower jaw occur; wherein the method further includes: providing that the teeth in the virtual upper jaw and virtual lower jaw are blocked from penetrating each other's virtual surfaces in the collisions.

Image data Z-axis coverage extension for tissue dose estimation

A method for extending initial image data of a subject for dose estimation includes obtaining first image data of the subject for dose calculation, wherein the first image data has a first field of view. The method further includes obtaining second image data for extending the field of view of the first image data. The second image data has a second field of view that is larger than the first field of view. The method further includes extending the first field of view based on the second image data, producing extended image data.

METHOD AND SYSTEM FOR PROCESSING DENTAL PROSTHESES

A system and method for optimising the preparation of dental restorations is provided. The system comprises a dental restoration surface processing unit, a dental restoration assessment unit, a database comprising a treatment parameters database and a processing protocols database, a processor operationally coupled to said dental restoration surface processing unit and a protocol selector. The method treats a dental restoration surface using the system and according to one or more selected processing protocol.

INTRAORAL SCANNING USING A PRE-EXISTING MODEL
20220270340 · 2022-08-25 ·

An intraoral scanner system includes an intraoral scanner having an imaging device and a sensing face, and a computing device, communicatively coupled to the intraoral scanner. The computing device receives a first intraoral images of a three-dimensional intraoral object of a patient generated by the intraoral scanner corresponding to an intraoral scanning of the three-dimensional intraoral object of the patient. The computing device registers a first intraoral image of the first intraoral images relative to a second intraoral image of the first intraoral images using a model of the three-dimensional intraoral object that existed prior to the intraoral scanning.

DENTAL IMAGER AND METHOD FOR RECORDING PHOTOGRAPHIC IMPRESSIONS
20170215997 · 2017-08-03 ·

A dental imager includes an elongated handle with a rotatable head coupled to a distal end thereof and having a central platform with a plurality of arcuate scanning arms pivotally coupled thereto by a hinge. The arcuate scanning arms are of a shape and size for general deployment around a tooth and each include at least one scanner and a roller guide that comfortably rolls along the surface of the tooth or gums to bias the scanners a desired distance from the surface of the tooth, conducive for imaging thereof. In this respect, such a dental imager may be used in a process to scan and record the contours of an intraoral surface, the data of which may be used to create a digital three-dimensional surface impression printable by a 3D printer or the like.

METHOD AND APPARATUS FOR WIRELESS PORTABLE ULTRASOUND IMAGING

Presented is a wireless portable ultrasound acquisition system for dental imaging, having an ultrasound probe with a control switch connected through a cable to a portable ultrasound acquisition system that communicates wirelessly with a smart tablet or a phone display to display the ultrasound images. The system uses ultrasound signals to create images of alveolar bone structure and boundaries of enamel, dentin and gingiva of a patient.

Intraoral scanning using ultrasound and optical scan data
11341732 · 2022-05-24 · ·

First intraoral images of a first portion of a three-dimensional intraoral object are received. The first intraoral images correspond to an intraoral scan of the three-dimensional intraoral object during a current patient visit. A pre-existing model that corresponds to the three-dimensional intraoral object is identified. The pre-existing model is based on intraoral data of the three-dimensional intraoral object captured during a previous patient visit. A first intraoral image of the first intraoral images is registered to a first portion of the pre-existing model. A second intraoral image of the first intraoral images is registered to a second portion of the pre-existing model.