公开(公告)号：US11471117B2

公开(公告)日：2022-10-18

申请号：US15463325

申请日：2017-03-20

Applicant: DENTSPLY SIRONA Inc.

Inventor： Mark Abramovich ,  Aaron Bratslavsky ,  Charles Smith ,  Stan Mandelkern ,  Liang Hwang

IPC: A61B6/06 ,  A61B6/14 ,  A61B6/00 ,  A61B6/02 ,  A61B6/08 ,  G21K1/02

Abstract: Multiposition collimation devices and x-ray imaging systems, which include the multiposition collimation devices, are provided. The multiposition collimation device includes a collimator housing and a collimator plate constructed to at least partially block the passage of x-rays. The collimator plate is movable relative to the collimator housing to a first position, corresponding to a first x-ray detector size, and a second position, corresponding to a second x-ray detector size.

公开(公告)号：US20220284141A1

公开(公告)日：2022-09-08

申请号：US17635725

申请日：2020-08-21

Applicant: DENTSPLY SIRONA Inc.

Inventor： Christian STAHL ,  Daniel WEISS

IPC: G06F30/10 ,  G06F30/27 ,  B29C64/386 ,  B29C64/124 ,  B33Y50/00

Abstract: A method of determining the orientation of a 3D Model to be generated by an additive manufacturing apparatus having a vat for holding photocurable material; and a platform for holding the 3D object corresponding to the 3D model. The platform is relatively movable with respect to the vat and the method includes a step of defining the surface geometry of the 3D model and the surface geometry includes surface segments si.

公开(公告)号：US11432905B2

公开(公告)日：2022-09-06

申请号：US16031204

申请日：2018-07-10

Applicant: DENTSPLY SIRONA inc.

Inventor： Metin Ertugrul ,  Stefan Gobel

IPC: A61C1/12 ,  A61C1/18 ,  A61C1/06

Abstract: Dental hand piece, comprising a housing and a drive train with a coupling element for a drive, wherein the housing radially surrounds the drive train and wherein the housing has a first and a second housing end, and wherein the housing is held on the drive train on the first and on the second housing end. Between the first housing end and the coupling element is arranged a decoupling element, which is strictly springy or springy and damping in the axial direction, whereas the second housing end is braced rigidly against the drive train and the housing is braced with respect to the coupling element in the axial direction by means of the decoupling element.

公开(公告)号：US20220249216A1

公开(公告)日：2022-08-11

申请号：US17610231

申请日：2020-05-14

Applicant: DENTSPLY SIRONA INC.

Inventor： Martin PFLEIDERER

IPC: A61C19/04

Abstract: The present invention relates to an endodontic file clip (1) for an apex locator, comprising: a hollow body (2); a push button (3) movably linked to the body (2); a spring (4) pushing the push button (3) away from the body (2); an electrically conductive hook (5) movably arranged within the body (2) and partly protruding out of the tip (2a) of the body (2) and fixed to the push button (3) to securely attach an endodontic file (6) to the tip (2a) when the push button (3) is released towards the closed position, and disengage from the endodontic file (6) when the push button (3) is pressed towards the open position; characterized by further comprising: a detachment mechanism (7) for re-attachably detaching the push button (3), the spring (4) and the hook (5) from the body (2) for cleaning and disinfection in a dental washer disinfector, wherein the detachment mechanism (7) comprises a detachment slot (2c;2c′) in the body (2) which extends up to the tip (2a) and joins said hole, to allow manual detachment of the push button (3), the spring (4) and the hook (5) from the body (2) when the hook (5) is manually moved from said hole into the detachment slot (2c, 2c′).

公开(公告)号：US20220249211A1

公开(公告)日：2022-08-11

申请号：US17436805

申请日：2020-03-06

Applicant: DENTSPLY SIRONA inc. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： Ralf SUTTER ,  Christian EBERHARD ,  Leo SEIFERT

IPC: A61C17/02

Abstract: The present invention provides a treatment apparatus (1) for treating peri-implantitis. Treatment apparatus (1) is characterized by comprising: An application tip (2) that is adapted for insertion into the sub-gingival region between the screw fixture of a dental implant and the surrounding gingiva and/or bone, wherein the length of the application tip (2) is at least equal to the depth of the peri-implant pocket to be treated, and wherein the application tip (2) comprises one or more nozzles (3) for jetting pressurized sterile fluid (4) for removing the bacterial biofilms from the outer surface of the screw fixture of the dental implant in vivo; a handpiece (5) for holding and guiding the application tip (2); and a supply unit (6) for supplying pressurized sterile fluid (4) to the application tip (2).

公开(公告)号：USD957681S1

公开(公告)日：2022-07-12

申请号：US29704998

申请日：2019-09-09

Applicant: DENTSPLY SIRONA Inc.

Designer： Amy E. Jacobs-Carrozza ,  Brian D. Fritsch ,  Jordan T. Houck ,  John Patrick Homich

公开(公告)号：US11382840B2

公开(公告)日：2022-07-12

申请号：US17113380

申请日：2020-12-07

Applicant: DENTSPLY SIRONA, Inc.

Inventor： Kevin Wilkinson ,  Geoffrey Ndungu

IPC: A61K6/851 ,  A61L27/16 ,  A61L27/30 ,  A61L27/32 ,  A61K6/17 ,  A61K6/76 ,  A61K6/887 ,  A61C8/00 ,  A61C13/083 ,  C23C14/34 ,  C23C14/24 ,  A61C5/50 ,  A61C13/00 ,  C23C14/08 ,  B28B1/14 ,  B28B11/24 ,  C04B28/04 ,  C23C14/22 ,  C04B103/00 ,  C04B111/00

Abstract: A dental device is improved in its ability to produce hydroxyl apatite by having a layer of mineral trioxide aggregate (MTA) deposited thereon. A tile of MTA is prepared, heat treated and sintered to produce a micronized tile of MTA that can then be deposited by physical vapor depositions, hot isostatic pressing, molding or other conventional technique.

公开(公告)号：US20220202382A1

公开(公告)日：2022-06-30

申请号：US17605644

申请日：2020-04-23

Applicant: DENTSPLY SIRONA Inc. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： Michael ELVERS ,  Ulrich SCHULZE-GANZLIN ,  Stefan EICHNER

IPC: A61B6/14 ,  A61B6/00 ,  G06T7/00 ,  G06T7/11

Abstract: The invention relates to a device and a method for generating a panoramic layer image (1, 2) of an object (3) to be imaged, by employing a 2D panoramic X-ray device, wherein the object is imaged by projecting X-rays (6) generated by an X-ray source (7) through the object (3) in a projection direction (8) and recording said X-rays (6) with an X-ray detector (9), wherein several 2D X-ray projection images are continuously recorded from various imaging directions while the X-ray source (7) and the X-ray detector (9) move around the object (3), wherein at least one panoramic layer image (1, 2) is calculated from the recorded 2D X-ray projection images by means of a reconstruction method. The panoramic layer image (2) is calculated by selecting and employing at least one partial area (50, 52, 55, 57, 65) from at least two 2D X-ray projection images (51) in relation to an active sensor area (73).

公开(公告)号：US20220175500A1

公开(公告)日：2022-06-09

申请号：US17435420

申请日：2020-03-11

Applicant: DENTSPLY SIRONA Inc.

Inventor： Stefan FECHER ,  Lothar VÖLKL ,  Markus VOLLMANN ,  Andreas GEBHARDT

IPC: A61C13/00 ,  A61C13/08 ,  A61C13/083

Abstract: A blank for milling or grinding a dental article, the blank having a plate-shaped body adapted to be received in a blank holder of a CAM system, which plate-shaped body comprises one or more ceramic or glass ceramic blank portions and two or more through holes, wherein each through hole is contiguous with at least one of the ceramic or glass ceramic blank portions for receiving a working end of a milling or grinding tool of the CAM system.

公开(公告)号：US20220152915A1

公开(公告)日：2022-05-19

申请号：US17435597

申请日：2020-03-11

Applicant: DENTSPLY SIRONA inc.

Inventor： Thomas HASENZAHL

IPC: B29C64/124 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y30/00

Abstract: A stereolithography apparatus (1) for generating a three-dimensional object (2) from a photocurable substance (3), comprising: a vat (4) for storing the photocurable substance (3); and a platform (5) for supporting the three-dimensional object (2), wherein the platform (5) is movable relative to the vat (4); an optical unit (6) for sequentially projecting layered images towards the photocurable substance (3) for hardening the photocurable substance (3) deposited between the three-dimensional object (2) and the bottom of the vat (4); further comprising: an oscillation unit (7) adapted to horizontally oscillate the vat (4) concomitantly with the projection of the layered images with a substantially constant amplitude that is smaller than the pixel size of the layered images in the horizontal direction for preventing adhesion of the three-dimensional object (2) to the bottom of the vat (4).