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公开(公告)号：US20240350101A1
公开(公告)日：2024-10-24
申请号：US18687366
申请日：2022-07-19
Applicant: DENTSPLY SIRONA Inc. , ISRONA DENTAL SYSTEMS GMBH
Inventor： Wolf BLECHER , Michael ELVERS
Abstract: A method in which: (a) a patient is positioned in an X-ray device; (b) a 3D scout image with reduced dose and with a predefined volume sizes and a predefined center of rotation is created; (c) on the 3D scout image, a practitioner marks the tooth (d) a software determines, based on the position of the enveloping geometry, the available centers of rotation and calculates, based on reference points of the enveloping geometry, the imaging positions; (e) based on the imaging positions, a center of rotation is selected; (f) the previously determined aperture positions and the detector regions to be irradiated are transmitted; (g) the high-resolution image is reconstructed and the newly acquired high-resolution information is superimposed in the 3D scout image; (h) the practitioner receives the 3D scout image for diagnosis and further use.
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公开(公告)号：US20230009790A1
公开(公告)日：2023-01-12
申请号：US17780107
申请日：2020-11-27
Applicant: DENTSPLY SIRONA Inc.
Inventor： Johannes ULRICI , Kai STANNIGEL , Wolf BLECHER
Abstract: A 3D X-ray device including an X-ray detector, an X-ray source and a computer. The X-ray detector and the X-ray source are moved about an object volume to be recorded on movement paths with a rotation of at least 185°. A number of X-ray projection images are recorded from different directions. X-rays irradiate the object volume in one of the irradiation directions and are captured by the detector. A 3D X-ray image of the object volume is calculated from the recorded X-ray projection images by a reconstruction method. The X-ray detector is arranged asymmetrically relative to a central axis through a center of rotation of the 3D X-ray device. A first fan beam and an opposite second fan beam rotated 180° form an overlap region. At least one X-ray filter is placed between the X-ray source and the object volume for attenuating an X-ray dose inside the overlap region.
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公开(公告)号：US20230346326A1
公开(公告)日：2023-11-02
申请号：US17779019
申请日：2020-11-27
Applicant: DENTSPLY SIRONA Inc.
Inventor： Wolf BLECHER
CPC classification number: A61B6/145 , A61B6/4435 , A61B6/587
Abstract: A method for determining the optimum relative position of at least one sensor and/or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The disclosure also relates to a sensor holder (1) for intraoral imaging including at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering device (4) for aligning at least one imaging device. The centering device (4) is at least indirectly in operative connection with the biting device (2) via at least one centering device holding portion (5).
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公开(公告)号：US20220133248A1
公开(公告)日：2022-05-05
申请号：US17601947
申请日：2020-04-17
Applicant: DENTSPLY SIRONA Inc. , SIRONA DENTAL SYSTEMS GYBH
Inventor： Wolf BLECHER , Franziska RIVERSA , Ulrich SCHULZE-GANZLIN , Kai LINDENBERG , Christian BECKHAUS
Abstract: The present invention relates to an apparatus (20) for real-time visualizing a movement of a lower jaw (12) versus an upper jaw (14) in a craniomaxillofacial area (16) of a patient (18) in dental diagnostics, comprising: an input interface (32) for receiving a two-dimensional image signal (26) of the craniomaxillofacial area of the patient from a camera (40) and a three-dimensional jaw model (28) of the craniomaxillofacial area of the patient being precalculated based on volume data; a registration unit (34) for registering the three-dimensional jaw model with the two-dimensional image signal in a first jaw position of the lower jaw versus the upper jaw and in a second jaw position of the lower jaw versus the upper jaw; an imaging unit (36) for generating a two-dimensional depth-view (30) of the craniomaxillofacial area from the three-dimensional jaw model based on the conducted registrations and the two-dimensional image signal, said two-dimensional depth-view including a structure underlying an image area of the two-dimensional image signal; and an output interface (38) for outputting the two-dimensional depth-view. The present invention further relates to a system (10) and method for real-time visualizing a movement of a lower jaw (12) versus an upper jaw (14) in a craniomaxillofacial area (16) of a patient (18) in dental diagnostics.
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