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    Dental color tone adjustment material kit
    2.
    发明授权
    Dental color tone adjustment material kit 有权

    公开(公告)号：US09675527B2

    公开(公告)日：2017-06-13

    申请号：US15033193

    申请日：2014-10-28

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Hirotaka Kita ,  Eiichi Terakawa ,  Mizuko Oshita

    IPC: A61K6/083 ,  A61K6/04 ,  A61K6/00 ,  A61K6/02 ,  A61C5/70

    CPC classification number: A61K6/0017 ,  A61C5/70 ,  A61C5/77 ,  A61C13/0004 ,  A61K6/0002 ,  A61K6/0029 ,  A61K6/0052 ,  A61K6/0055 ,  A61K6/0094 ,  A61K6/0235 ,  A61K6/083 ,  C08L33/08 ,  C08L33/10

    Abstract: The present invention provides a dental color tone adjustment material kit that has improved properties in terms of surface drying and of discoloration after curing and that enables adjustment to a desired color tone. The present invention relates to a dental color tone adjustment material kit including: a primer composition (A) including an acid group-containing polymerizable monomer (a) and a volatile organic solvent (b); and a dental color tone adjustment material B including a polymerizable monomer (d), a polymerization initiator (e), particle aggregates (f) that are chain aggregates of ultrafine filler particles having an average primary particle diameter of 1 to 50 nm, titanium dioxide (g), and a pigment (h). The monomer (a) accounts for 0.05 to 45 weight % of the primer composition (A), and the organic solvent (b) accounts for 55 to 99.95 weight % of the primer composition (A). The monomer (d) includes a polyfunctional acrylate monomer (d1) and a volatile monofunctional (meth)acrylate monomer (d2), and the monomers (d1) and (d2) account for 88 weight % or more of the monomer (d). The content of the particle aggregates (f) is 5 to 20 parts by weight, and the content of the titanium dioxide (g) is 0.05 to 2 parts by weight, per 100 parts by weight of the total of the monomer (d) and the particle aggregates (f).

    Dental restorative composition
    5.
    发明授权
    Dental restorative composition 有权

    公开(公告)号：US09993394B2

    公开(公告)日：2018-06-12

    申请号：US15119053

    申请日：2015-02-17

    Applicant: KURARAY NORITAKE DENTAL INC.

    Inventor： Hirotaka Kita ,  Michiya Kawana ,  Eiichi Terakawa

    IPC: A61K6/08 ,  A61K6/02 ,  A61K6/083 ,  A61K6/027 ,  A61K6/00

    CPC classification number: A61K6/083 ,  A61K6/0005 ,  A61K6/0008 ,  A61K6/0052 ,  A61K6/027 ,  C08L33/10

    Abstract: Provided is a dental restorative composition that has good handling properties when in the form of a paste having yet to be cured and that has light diffusion ability and transparency when in the form of a cured product. The dental restorative composition includes a polymerizable monomer, a polymerization initiator, an inorganic filler (C) having an average particle diameter of 0.1 to 1 μm, an organic-inorganic composite filler (D) having an average particle diameter of 1 μm or more and less than 10 μm, and an organic-inorganic composite filler (E) having an average particle diameter of 10 to 50 μm. An absolute value of a difference between a refractive index (Cd) of the inorganic filler (C) and a refractive index (Ad) of a polymer of the polymerizable monomer is 0.01 or less, an absolute value of a difference between the refractive index (Ad) and one of a refractive index (Dd) of the organic-inorganic composite filler (D) and a refractive index (Ed) of the organic-inorganic composite filler (E) is 0.01 or less, and an absolute value of a difference between the refractive index (Ad) and the other of the refractive index (Dd) and the refractive index (Ed) is 0.03 or more.

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