Ion sustained-release dental resin temporary sealing material composition

摘要

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.

主权项

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.