Dental filing and restorative material kit

US9687421B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9687421-B2
Application numberUS-201414772604-A
CountryUS
Kind codeB2
Filing dateMar 10, 2014
Priority dateMar 19, 2013
Publication dateJun 27, 2017
Grant dateJun 27, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Provided is a dental filling and restorative material kit, including: a polymerizable composition (A) for a dentin restorative material for restoring a dentin portion; and a polymerizable composition (B) for an enamel restorative material to be layered on the dentin restorative material, in which the polymerizable composition (A) for a dentin restorative material and the polymerizable composition (B) for an enamel restorative material have different color tones, and in which a difference (n D a −n D b ) between a refractive index n D a of a polymer of a polymerizable monomer (a) in the polymerizable composition (A) for a dentin restorative material and a refractive index n D b of a polymer of a polymerizable monomer (b) in the polymerizable composition (B) for an enamel restorative material is 0.005 or more.

First claim

Opening claim text (preview).

The invention claimed is: 1. A dental filling and restorative material kit, comprising: a polymerizable composition (A) for a dentin restorative material for restoring a dentin portion; and a polymerizable composition (B) for an enamel restorative material to be layered on the dentin restorative material, wherein the polymerizable composition (A) for a dentin restorative material and the polymerizable composition (B) for an enamel restorative material have different color tones, wherein the polymerizable composition (A) comprises a polymerizable monomer (a) and 200 to 1900 parts by mass of a filler, with respect to 100 parts by mass of the polymerizable monomer (a), and the polymerizable composition (B) comprises a polymerizable monomer (b) and 200 to 1900 parts by mass of a filler, with respect to 100 parts by mass of the polymerizable monomer (b), wherein a difference (n D a −n D b ) between a refractive index n D a of a polymer of the polymerizable monomer (a) in the polymerizable composition (A) for the dentin restorative material and a refractive index n D b of a polymer of the polymerizable monomer (b) in the polymerizable composition (B) for the enamel restorative material is 0.005 or more, wherein contents of at least one element selected from the group consisting of water and an organic solvent is within the range of from 0 parts by mass to 1 part by mass with respect to 100 parts by mass of the polymerizable composition (A) for the dentin restorative material, and wherein contents of at least one element selected from the group consisting of water and an organic solvent is within the range of from 0 parts by mass to 1 part by mass with respect to 100 parts by mass of the polymerizable composition (B) for the enamel restorative material. 2. The dental filling and restorative material kit according to claim 1 , wherein the dental filling and restorative material kit consists of the polymerizable composition (A) for the dentin restorative material and the polymerizable composition (B) for the enamel restorative material. 3. The dental filling and restorative material kit according to claim 1 , wherein a 1-mm cured body of the polymerizable composition (A) for the dentin restorative material has a contrast ratio of from 0.55 to 0.75, and wherein a 1-mm cured body of the polymerizable composition (B) for the enamel restorative material has a contrast ratio of from 0.30 to 0.54. 4. The dental filling and restorative material kit according to claim 1 , wherein contents of both water as well as the organic solvent are within the range of 0 parts by mass to 1 part by mass with respect to 100 parts by mass of the polymerizable composition (A) for the dentin restorative material, and wherein contents of both water as well as the organic solvent are within the range of 0 parts by mass to 1 part by mass with respect to 100 parts by mass of the polymerizable composition (B) for the enamel restorative material. 5. The dental filling and restorative material kit according to claim 1 , wherein the polymerizable composition (A) does not comprise water, and wherein the polymerizable composition (B) does not comprise the organic solvent. 6. A dental filling and restorative material kit according to claim 1 , wherein the polymerizable composition (A) for the dentin restorative material comprises no water and no organic solvent, and wherein the polymerizable composition (B) for the enamel restorative material comprises no water and no organic solvent. 7. The dental filling and restorative material kit according to claim 1 , wherein the polymerizable composition (A) does not comprise water, and wherein the polymerizable composition (B) does not comprise water. 8. The dental filling and restorative material kit according to claim 1 , wherein the polymerizable composition (A) does not comprise the organic solvent, and wherein the polymerizable composition (B) does not comprise the organic solvent. 9. The dental filling and restorative material kit according to claim 1 , wherein the polymerizable composition (A) does not comprise the organic solvent, and wherein the polymerizable composition (B) does not comprise water.

Assignees

Inventors

Classifications

  • A61K6/16Primary

    Refractive index · CPC title

  • Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

  • Human Necessities · mapped topic

  • Human Necessities · mapped topic

  • A61K6/0005Primary

    Human Necessities · mapped topic

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Frequently asked questions

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What does patent US9687421B2 cover?
Provided is a dental filling and restorative material kit, including: a polymerizable composition (A) for a dentin restorative material for restoring a dentin portion; and a polymerizable composition (B) for an enamel restorative material to be layered on the dentin restorative material, in which the polymerizable composition (A) for a dentin restorative material and the polymerizable compositi…
Who is the assignee on this patent?
Toriyabe Chika, Akizumi Hironobu, Tokuyama Dental Corp
What technology area does this patent fall under?
Primary CPC classification A61K6/16. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jun 27 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).