Dental photopolymerizable composition and photopolymerization initiator

Patent metadata

Field	Value
Publication number	US-10639244-B2
Application number	US-201816175973-A
Country	US
Kind code	B2
Filing date	Oct 31, 2018
Priority date	Nov 14, 2017
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

A single-component dental photopolymerizable composition is provided that includes a (meth)acrylate compound, a vanadium compound, an α-diketone compound, and a tertiary aromatic amine compound.

First claim

What is claimed is:

1. A single-component dental photopolymerizable composition comprising:
a (meth)acrylate compound, a vanadium compound, an α-diketone compound, a tertiary aromatic amine compound, and a photopolymerization initiator,
wherein the dental photopolymerizable composition does not include a (meth)acrylate compound having an acid group, and does not include an organic filler, but includes an inorganic filler, and
wherein the dental photopolymerizable composition does not include an aryl borate compound.

2. The single-component dental photopolymerizable composition according to claim 1 , wherein a content of the vanadium compound in the single-component dental photopolymerizable composition is greater than or equal to 0.001 mass % and less than or equal to 1 mass %.

3. The single-component dental photopolymerizable composition according to claim 1 , wherein the single-component dental photopolymerizable composition is used as a composite resin for abutment construction.

4. The single-component dental photopolymerizable composition according to claim 1 ,
wherein the vanadium compound includes at least one of vanadium acetylacetonate, vanadyl acetylacetonate, and vanadyl stearate, and
wherein a content of the at least one of vanadium acetylacetonate, vanadyl acetylacetonate, and vanadyl stearate is greater than or equal to 0.02% by mass and less than or equal to 0.20% by mass with respect to 100% by mass of the (meth)acrylate compound.

5. The single-component dental photopolymerizable composition according to claim 1 ,
wherein the dental photopolymerizable composition is a paste, and
wherein a bending strength of a set product of the paste is greater than or equal to 170 MPa.

6. The single-component dental photopolymerizable composition according to claim 1 ,
wherein the dental photopolymerizable composition is a paste, and
wherein a bending elastic modulus of a set product of the paste is greater than or equal to 10 GPa.

7. The single-component dental photopolymerizable composition according to claim 1 ,
wherein the dental photopolymerizable composition is a paste, and
wherein an extrusion hardness of the paste is less than or equal to 20.5 kgf.

8. A single-component dental photopolymerizable composition consisting of:
a (meth)acrylate compound consisting of one or more kinds of (meth)acrylate not having an acid group;
one or more vanadium compounds;
an α-diketone compound;
a tertiary aromatic amine compound;
a filler consisting of an inorganic filler;
a polymerization inhibitor; and
a photopolymerization initiator.

9. The single-component dental photopolymerizable composition according to claim 1 , wherein the dental photopolymerizable composition does not include an acidic compound.

Assignees

• G C Dental Ind Corp

Inventors

• Ishizuka So
• Sakaguchi Yusuke
• Matsumoto Naofumi

Classifications

• A61K6/824

  comprising transition metal oxides · CPC title

• A61K6/62 Primary

  Photochemical radical initiators · CPC title

• A61C5/77

  Methods or devices for making crowns · CPC title

• C08F2800/20

  as weight or mass percentages · CPC title

• A61K6/80

  Preparations for artificial teeth, for filling teeth or for capping teeth · CPC title