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    DENTAL VARNISH
    32.
    发明申请
    DENTAL VARNISH 有权

    公开(公告)号：US20220378668A1

    公开(公告)日：2022-12-01

    申请号：US17771846

    申请日：2020-10-30

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Amit JHA ,  Thomas SIMONTON

    IPC: A61K6/20 ,  A61K6/891 ,  A61K6/61

    Abstract: Described herein are dental treatment compositions, more particularly, a dental varnish composition useful in effective fluoridation, enhancement of remineralization the tooth enamel, and hypersensitivity through occlusion of dentine tubule. The dental varnish composition includes a hydrogel system and at least one fluoride source, wherein the dental varnish is water soluble. The hydrogel system includes at least one polyphenol having at least one phenol group, at least one polymer, and a metal ion. Described herein are also methods of making dental varnish composition in a single step and one pot synthesis.

    DENTAL COMPOSITION
    34.
    发明申请
    DENTAL COMPOSITION 有权

    公开(公告)号：US20220331209A1

    公开(公告)日：2022-10-20

    申请号：US17639998

    申请日：2020-09-10

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Joachim E. KLEE ,  Florian SZILLAT ,  Jacques LALEVÉE ,  Julie KIRSCHNER ,  Fabrice MORLET-SAVARY

    IPC: A61K6/887 ,  A61K6/62 ,  A61K8/20 ,  A61K8/46 ,  A61K6/19 ,  A61K6/40

    Abstract: The present invention is related to a dental composition comprising: (a) at least one polymerizable monomer having at least one ethylenically unsaturated group; (b) a radical initiator system comprising (i) a photosensitizer having an absorption maximum ranging from 400 nm to 800 nm; (ii) a coinitiator; and (iii) a compound of the following formula (1): wherein R1 and R2, which may be the same or different, independently represent a hydrogen atom, a C1-6 alkyl group, or a C1-6 alkoxy group; R3 and R4, which may be the same or different, independently represent a hydrogen atom, or a C1-6 alkyl group, or R3 and R4 may represent a bond so that the carbon atoms to which R3 and R4 are bonded are linked by a double bond; R5 and R6, which may be the same or different, independently represent a hydrogen atom, or a C1-6 alkyl group, or R5 and R6 may represent a bond so that the carbon atoms to which R5 and R6 are bonded are linked by a double bond; L represents a single bond or a group —CRH—, wherein R may be a hydrogen atom, a C1-6 alkyl group, or a C1-6 alkoxy group; n and m, independently are integers of 1 to 6.

    METHOD OF DETERMINING LAYER THICKNESSES OF 3D MODELS FOR ADDITIVE MANUFACTURING
    39.
    发明申请
    METHOD OF DETERMINING LAYER THICKNESSES OF 3D MODELS FOR ADDITIVE MANUFACTURING 有权

    公开(公告)号：US20220207829A1

    公开(公告)日：2022-06-30

    申请号：US17604471

    申请日：2020-04-24

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Christian STAHL ,  Daniel WEISS

    IPC: G06T17/20 ,  B29C64/393 ,  B33Y50/02 ,  A61C1/08

    Abstract: The present invention relates to a method of determining layer thicknesses (t) of a three-dimensional model (1) for generation with an additive manufacturing apparatus, the method comprising: a step of determining the layer thicknesses (t) according to an adaptive slicing algorithm in which the thickness of a layer (2) is calculated through a relation based on the inclination of the normal vectors (n) of the surface elements (s) of the 3D model (1) which at least partly enclose the layer (2) from a horizontal direction (x; y) the method being characterized by further comprising: a step of selectively imposing on at least one surface element (s) of the 3D model (1) a precision requirement out of one or more selectable different precision requirements which respectively differently alter in the determination step the relation with respect to the inclination of the normal vector (n) of the said at least one surface element (s) which allows, through the altered relation, the layer thickness (t) to obtain a value smaller or larger than the layer thickness (t) determined through the unaltered relation.

    PINK COLORED PRE-SINTERED OR FULLY-SINTERED BLANK
    40.
    发明申请
    PINK COLORED PRE-SINTERED OR FULLY-SINTERED BLANK 有权

    公开(公告)号：US20220183804A1

    公开(公告)日：2022-06-16

    申请号：US17549388

    申请日：2021-12-13

    Applicant: DENTSPLY SIRONA INC.

    Inventor： Stefan FECHER ,  Lothar VÖLKL ,  Daniel AMMON

    IPC: A61C13/00 ,  C04B35/48

    Abstract: The present invention is related to a pink colored pre-sintered or fully-sintered blank for use for the production of a dental restoration, such as a denture base of a full or a partial denture, a partial denture, or an implant supported denture, consisting of a ceramic material which comprises zirconium dioxide doped with yttrium oxide (Y2O3), calcium oxide (CaO), magnesium oxide (MgO) and/or cerium oxide (CeO2), wherein the pink colored blank comprises 2 to 25 wt %, preferably 4 to 17 wt %, and more preferably 5 to 12 wt %, erbium oxide.

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