Ion sustained-release dental resin temporary sealing material composition

Patent metadata

Field	Value
Publication number	US-9456964-B2
Application number	US-201514593241-A
Country	US
Kind code	B2
Filing date	Jan 9, 2015
Priority date	May 30, 2014
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A dental resin temporary sealing material composition that is excellent in adhesion to the tooth substance and removability of the hardened material and has a preventive function of releasing various ions including a fluoride ion is provided. The adhesion to cavity walls can be improved and, since there is little dimensional change during hardening, excellent sealability in a cavity can be attained.

First claim

The invention claimed is:

1. A dental resin temporary sealing material composition that is polymerizable, the dental resin temporary sealing material composition comprising:
(a) 44% to 64% by weight of a noncrosslinked (meth)acrylate polymer;
(b) 3% to 21% by weight of a filling material;
(c) 4% to 16% by weight of a monofunctional (meth)acrylate polymerizable monomer;
(d) 4% to 13% by weight of a hydrophilic polymerizable monomer;
(e) 0.1% to 5% by weight of a polymerization initiator; and
(f) 5% to 25% by weight of a plasticizer,
wherein the noncrosslinked (meth)acrylate polymer (a) is particulate, has a 50% average particle diameter in a range of 5 μm to 150 μm, and a weight-average molecular weight in a range of 50000 to 1500000, and
the hydrophilic polymerizable monomer (d) has solubility of 5% by weight or more in water at 23° C., and is at least one selected from the group consisting of 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 1,2-dihydroxypropyl (meth)acrylate, 1,3-dihydroxypropyl (meth)acrylate, 2,3-dihydroxypropyl (meth)acrylate, 2-hydroxypropyl-1,3-di(meth)acrylate, 3-hydroxypropyl-1,2-di(meth)acrylate, pentaerythritol di(meth)acrylate, 2-trimethylammoniumethyl (meth)acrylchloride, (meth)acrylamide, 2-hydroxyethyl (meth)acrylamide, and polyethylene glycol di(meth)acrylate, wherein a number of oxyethylene groups is greater than or equal to 9.

2. The dental resin temporary sealing material composition according to claim 1 ,
wherein a part or whole of the filling material (b) is ion sustained-release glass.

3. The dental resin temporary sealing material composition according to claim 2 ,
wherein the ion sustained-release glass sustained-releases a fluoride ion, and further sustained-releases at least one ion from among bivalent to tetravalent ions.

4. The dental resin temporary sealing material composition according to claim 2 ,
wherein the ion sustained-release glass sustained-releases a fluoride ion, and further sustained-releases at least one ion from among a strontium ion, an aluminum ion, and a borate ion.

Assignees

• Shofu Inc

Inventors

• Sadakane Yuji
• Ishikawa Katsura
• Nakatsuka Toshiyuki

Classifications

• A61K6/889 Primary

  Polycarboxylate cements; Glass ionomer cements · CPC title

• A61K6/77 Primary

  Glass · CPC title

• C08L33/06

  of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical · CPC title

• A61K6/0017

  Human Necessities · mapped topic

• A61K6/0091

  Human Necessities · mapped topic