公开(公告)号：US10407341B2

公开(公告)日：2019-09-10

申请号：US15717565

申请日：2017-09-27

Applicant: DENTSPLY SIRONA Inc.

Inventor： Markus Vollmann ,  Irmgard Wissel ,  Marcel Meegdes ,  Carsten Wiesner

IPC: C03C10/00 ,  A61C13/00 ,  C03B32/02 ,  C03C4/00 ,  C03C3/097

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.

公开(公告)号：US20190224081A1

公开(公告)日：2019-07-25

申请号：US15898933

申请日：2018-02-19

Applicant: DENTSPLY SIRONA INC.

Inventor： Hui LU ,  Xiaoming JIN ,  Joachim E. KLEE ,  Bernard KOLTISKO

IPC: A61K6/083 ,  A61K6/00 ,  C07D295/24

Abstract: A method of forming a dental composite includes photopolymerizing a dental composition. The dental composition includes a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical. The photopolymerizing forms the dental composite such that the dental composite has a flexural modulus of about 9500 MPa or greater and the polymerizable stable radical reduces shrinkage stress of the dental composite caused by the photopolymerizing by 10% or greater. A method of forming a dental composite composition includes combining a free-radically polymerizable (meth)acrylate resin, 75 percent by weight or greater of filler particles, and about 0.005 percent to about 5 percent by weight of at least one polymerizable stable radical to form the dental composite composition.

公开(公告)号：US20190175131A1

公开(公告)日：2019-06-13

申请号：US16215738

申请日：2018-12-11

Applicant: DENTSPLY SIRONA Inc.

Inventor： Frederick William DUEWER

IPC: A61B6/00 ,  G06T11/00 ,  A61B6/02 ,  A61B6/14

CPC classification number: A61B6/5205 ,  A61B6/025 ,  A61B6/14 ,  G06T11/006 ,  G06T11/008 ,  G06T2211/424 ,  G06T2211/436

Abstract: A method, apparatus, system, and computer program product for using an invalidity matrix, iterative reconstruction and reprojection to generate a two-dimensional image. The method includes acquiring projections through an a dental anatomy, calibrating the acquired projected images, estimating a geometry of the tomosynthesis system, determining an invalidity matrix for each acquired projection image, removing contributions of marker particles to the acquired projection images, constructing a starting volume for reconstruction, performing an iteration process for iteratively updating the starting volume, and reprojecting a final reconstructed volume to obtain a final two-dimensional image.

公开(公告)号：US20190167389A1

公开(公告)日：2019-06-06

申请号：US16269787

申请日：2019-02-07

Applicant: DENTSPLY SIRONA Inc.

Inventor： Paul Richard PIERSON ,  Fuming SUN ,  Richard James BENNETT ,  Robert J. PIERONI

IPC: A61C9/00 ,  A61C13/15

Abstract: Disclosed herein are a tissue management impression material and a method of application into the sulcus of a patient, whereby the tissue management impression material is a part of the final dental impression made when manufacturing a dental device, such as a crown.

公开(公告)号：US10299896B2

公开(公告)日：2019-05-28

申请号：US15628194

申请日：2017-06-20

Applicant: DENTSPLY SIRONA Inc.

Inventor： Benjamin J Sun ,  Dan Ammon

IPC: A61K6/08 ,  A61C13/00 ,  C08G18/73 ,  C08G18/75 ,  C08G18/10 ,  C08G18/28 ,  C08L75/04 ,  B33Y70/00 ,  B33Y80/00

Abstract: This invention designs and builds multiple layers (two layers or more) of various dental devices, specifically denture base or denture, where printed multiple layered denture base with teeth cavities to receive artificial denture tooth materials to form final dental devices, such as partial and full dentures. It can also print denture teeth. This invention also designs and prints multiple layers (two layers or more) of denture base with artificial denture teeth to form final dental devices, such as partial and full dentures. A method for manufacturing a layered denture is provided. The invention provides a multiple layered denture base materials for printing a denture base. The invention also provides a multiple layered denture tooth materials for printing artificial denture teeth. Highly shape adjustable or shape memory polymer layer(s) may be used in these multiple layered denture base forms. Different layer of material has different mechanical and physical properties to meet different need, which provide added benefits to the patients, dental professional and dental laboratory.

公开(公告)号：USD846125S1

公开(公告)日：2019-04-16

申请号：US29632998

申请日：2018-01-11

Applicant: DENTSPLY SIRONA Inc.

Designer： Kevin Wilkinson

公开(公告)号：US20190021957A1

公开(公告)日：2019-01-24

申请号：US16039861

申请日：2018-07-19

Applicant: DENTSPLY SIRONA INC.

Inventor： Amit JHA ,  Thomas C. SIMONTON

IPC: A61K6/00 ,  C08L33/02 ,  C08L5/08

Abstract: Described herein are dental compositions, more particularly water soluble dental varnish composition useful for effective fluoridation, in situ biomimetic remineralization and improved adhesion to enamel. The dental composition includes a hydrogel-forming polymer having cohesive properties to itself and adhesive properties to a dental enamel. The hydrogel forming polymer includes a water-soluble polymer and an adhesion promotor chemically and/or physically conjugated to the water-soluble polymer. The embodiments also provide methods of forming a hydrogel forming polymer and use of hydrogel forming polymer to prepare such dental composition.

公开(公告)号：US20180360411A1

公开(公告)日：2018-12-20

申请号：US15781353

申请日：2016-12-14

Applicant: DENTSPLY SIRONA inc.

Inventor： Ciamak ABKAI

IPC: A61B6/00 ,  A61B6/02 ,  A61B6/14 ,  A61C9/00 ,  G06T11/00

Abstract: Disclosed is a method for calibrating at least one 2D X-ray image of an object to be imaged, which is recorded by an X-ray device in that X-rays produced by an X-ray source radiate through the object and are recorded by an X-ray detector. An already existing 3D model of a structure of the object is compared to the 2D X-ray image, wherein an actual image positional relationship of the X-ray source and the X-ray detector relative to the object, and/or relative to one another, is determined for the 2D X-ray image.

公开(公告)号：US20180344581A1

公开(公告)日：2018-12-06

申请号：US15995714

申请日：2018-06-01

Applicant: DENTSPLY SIRONA Inc.

Inventor： Todd Patrick Berger ,  Adam Zachary Baratz ,  Sheridan Lynn Rose

IPC: A61K6/06 ,  A61K6/083 ,  A61K6/00

CPC classification number: A61K6/0041 ,  A61K6/0038 ,  A61K6/0235 ,  A61K6/024 ,  A61K6/025 ,  C08L5/00

Abstract: A dental composition comprising pre-reacted particulate mineral trioxide aggregate (MTA) dispersed in a hydrogel wherein the content of MTA in the composition is in the range of 20 to 50 percent by weight based on the total weight of the composition.

公开(公告)号：US10130444B1

公开(公告)日：2018-11-20

申请号：US15650045

申请日：2017-07-14

Applicant: DENTSPLY SIRONA Inc.

Inventor： Derek Heath

IPC: A61C5/02 ,  A61C5/42 ,  A61C5/50

Abstract: An endodontic instrument includes a plurality of flutes and a plurality of lands extending helically around a working portion. Each flute includes a curved concave flute surface, a pair of flute shoulders at the peripheral edges of the flute surface, a flute width defined by a distance between the flute shoulders, and a flute depth defined by a point of maximum depth between the flute shoulders. Each land is positioned between a pair of axially adjacent flutes and includes a curved concave land surface, a pair of land shoulders at the peripheral edges of the land surface, a land width defined by a distance between the land shoulders, and a land depth defined by a point of maximum depth between the land shoulders. The land width is less than the flute width and the land depth is less than the flute depth in the upper region of the working portion.