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公开(公告)号:US20200268491A1
公开(公告)日:2020-08-27
申请号:US16800019
申请日:2020-02-25
Applicant: DENTSPLY SIRONA Inc.
Inventor: Vincent SHOTTON , Kevin WILKINSON
Abstract: Disclosed herein is a dental device for delivering fluid continuously while activated in an endodontic application. The dental device includes a hollow needle having a tip end and a connector portion; and a handle. One end of the handle is configured to be affixed to the connector portion of the hollow needle. The opposite end of the handle is capable of being attached to an endodontic handpiece or a sonic agitator for the activation. The connector portion includes at least one tube connector that is an integral part of the connector portion of the hollow needle or a plurality of openings on the connector portion to accommodate the hollow needle to a connector. The connector is a modular fluid delivery connector which is removable from the needle such that it can be reused.
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公开(公告)号:US10736712B2
公开(公告)日:2020-08-11
申请号:US15566226
申请日:2016-04-18
Applicant: DENTSPLY SIRONA inc.
Inventor: Metin Ertugrul , Siegfried Goisser , Stefan Gobel
IPC: A61C1/14 , A61B17/16 , B23B31/117 , B23B31/20
Abstract: The invention relates to a clamping device for clamping a cylindrical instrument shank, in particular, a dental instrument, the clamping device including a spring-loaded element for holding the instrument shank, a hollow shaft for transmitting a rotational movement, and a plunger, with the spring-loaded element being designed as a sleeve with a cylindrical wall, a first opening and a second opening; and the wall having cut-outs. The spring-loaded element, the shaft and the plunger have axes of rotation that are arranged coaxially; the shaft protrudes at least partially into the first opening of the spring-loaded element; and the plunger protrudes at least partially into the second opening of the spring-loaded element.
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公开(公告)号:USD879300S1
公开(公告)日:2020-03-24
申请号:US29645310
申请日:2018-04-25
Applicant: DENTSPLY SIRONA Inc.
Designer: Martin Pfleiderer , Moritz Manderscheid
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公开(公告)号:US10588830B2
公开(公告)日:2020-03-17
申请号:US15766382
申请日:2016-10-07
Applicant: DENTSPLY SIRONA Inc.
Inventor: Joachim E. Klee , Florian Szillat , Maximilian Maier , Helmut Ritter , Jacques Lalevee , Jean Pierre Fouassier , Fabrice Morlet-Savary , Celine Dietlin , Mariem Bouzrati-Zerelli , Christoph P Fik
Abstract: The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.
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公开(公告)号:US20190382304A1
公开(公告)日:2019-12-19
申请号:US16527122
申请日:2019-07-31
Applicant: DENTSPLY SIRONA Inc.
Inventor: Markus VOLLMANN , Irmgard WISSEL , Marcel MEEGDES , Carsten WIESNER
Abstract: The invention relates to a lithium silicate glass ceramic, which contains at least lithium disilicate as a crystal phase, and lithium aluminum silicate as further crystal phase. The lithium silicate glass ceramic in its initial composition contains Al2O3 at 1.5 to 3.5 percent by weight, and K2O at 0.6 to 1.8 percent by weight.
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公开(公告)号:US20190350817A1
公开(公告)日:2019-11-21
申请号:US16414986
申请日:2019-05-17
Applicant: DENTSPLY SIRONA Inc.
Inventor: Xiaoming JIN , Christos Angeletakis , Yi Liu , Joachim E. Klee , Christoph Weber , Xin Huo
IPC: A61K6/10 , C08F283/12
Abstract: A light-curable dental impression material comprising (a) a polymerizable polysiloxane resin composition comprising compounds of formula (I) E-(L1-Z)n-L2-E (I) (b) a particulate filler; and (c) a photoinitiator.
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公开(公告)号:US10449125B2
公开(公告)日:2019-10-22
申请号:US15951319
申请日:2018-04-12
Applicant: DENTSPLY SIRONA Inc.
Inventor: Joachim E. Klee , Helmut Ritter , Maximilliam Maier , Julia Gansel , Andreas Facher , Oliver Elsner , Sven Pohle
Abstract: A process for producing a water-soluble, hydrolysis-stable, polymerizable polymer, comprising a) a step of copolymerizing a mixture comprising (i) a first copolymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and (ii) a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary amino groups and a second polymerizable organic moiety, for obtaining an amino group containing copolymer; b) a step of coupling to the amino group containing copolymer a compound having a polymerizable moiety and a functional group reactive with an amino group of repeating units derived from the second copolymerizable monomer in the amino group containing copolymer obtained in the first step wherein the optionally protected amino group is deprotected, so that polymerizable pendant groups are linked to the backbone by hydrolysis-stable linking groups, and, optionally, a step of deprotecting the protected carboxylic acid group after step (a) or step (b), for obtaining a polymerizable polymer.
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公开(公告)号:US10438417B2
公开(公告)日:2019-10-08
申请号:US15614279
申请日:2017-06-05
Applicant: DENTSPLY SIRONA Inc.
Inventor: Ulf Willers
Abstract: The invention concerns a device (1) for editing a virtual 3-D model (2) of teeth (2.1, 2.2, 2.3, 2.4) positioned in a dental arch (9, 11) by means of a virtual tool (21, 22, 23, 24, 25, 26, 27, 28, 50). The tool (21, 22, 23, 24, 25, 26, 27, 28, 50) can be used on a first tooth (2.1, 2.3) of the 3-D model (2), whereby the corresponding application is carried out on a second mirrored tooth (2.2, 2.4), contralateral to the first tooth with respect to a plane of symmetry (12), that is, on the tooth on the other side of the plane of symmetry (12), which is positioned as a mirror image of the first tooth (2.1, 2.3) with respect to the plane of symmetry (12).
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公开(公告)号:US20190290190A1
公开(公告)日:2019-09-26
申请号:US16466316
申请日:2017-12-06
Applicant: DENTSPLY SIRONA inc.
Inventor: Volker RASCHE , Stefan WUNDRAK
IPC: A61B5/00 , A61B5/055 , A61B5/11 , A61B90/00 , A61B6/00 , A61C19/045 , G01R33/56 , G01R33/563
Abstract: Described is a method for detecting and displaying the movement of a temporomandibular joint which connects a lower jaw and an upper jaw by magnetic resonance imaging. A marker is secured to the lower jaw, a marker movement curve is generated using magnetic resonance imaging measurement data sets during a first measurement interval, during which the lower jaw is moved relative to the upper jaw, and a point which corresponds to a first position of the lower jaw relative to the upper jaw is ascertained on the movement curve. An image data set is generated during a second measurement interval, during which the temporomandibular joint is not moved, and a first model, which represents at least one part of the upper jaw and/or a temporal bone part that comprises the temporomandibular joint socket, and a second model, which represents at least one part of the lower jaw, are ascertained therefrom. A movement curve of the second model relative to the first model is calculated and displayed using the marker movement curve.
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公开(公告)号:US10386437B2
公开(公告)日:2019-08-20
申请号:US15517282
申请日:2015-10-07
Applicant: DENTSPLY SIRONA inc.
Inventor: Stefan Wundrak , Volker Rasche
IPC: G01R33/56 , G01R33/561 , G01R33/48 , G01R33/565
Abstract: Disclosed herein is a method for generating an MRI image in which a radial or spiral k-chamber path with a constant angular increment Psi is used to take an MRI image, the angular increment Psi being in the angular range of between 5-55 degrees or being in the corresponding supplementary angle Psi′ and is selected according to the formula PsiN,M=pi/(N+1/(M+tau−1)). Alternatively, for an angular increment Psi which deviates from the angle increment of the optimal distribution of n radial profiles Psiopt=180°/n, the minimum scanning efficiency of the angular increment Psi for n>21 profiles is greater than 0.95, the angular increment Psi is in an angular range of 5° to less than 68.7537°, in particular between 5-55 degrees or in the corresponding supplementary angle Psi′. Compared to the arrangement of the radial or spiral profile using the golden angle of 111.24°, the angle increments calculated according to the above formula lead to lower eddy current artifacts, for example during the use of a b-SSFP-pulse sequence.
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