申请人:KURARAY NORITAKE DENTAL INC.
公开号:US20170135909A1
公开(公告)日:2017-05-18
The present invention provides a dental cement that exhibits excellent adhesiveness to dentin and has high mechanical strength. The present invention relates to a multi-part dental cement containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); a hydrophobic crosslinkable polymerizable monomer (c); a chemical polymerization initiator (d); and a filler (e). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1):
where X is an optionally substituted, linear or branched C
1
to C
6
aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR
1
—, —CO—NR
1
—, —NR
1
—CO—, —CO—O—NR
1
—, —O—CO—NR
1
—, and —NR
1
—CO—NR
1
—, and R
1
is a hydrogen atom or an optionally substituted, linear or branched C
1
to C
6
aliphatic group.
本发明提供一种对牙本质具有良好粘附性并具有高机械强度的牙科水泥。本发明涉及一种含有多部分的牙科水泥,包括:一种不对称的丙烯酰胺-甲基丙烯酸酯化合物(a);一种含酸基的(甲基)丙烯酸聚合单体(b);一种疏水性交联聚合单体(c);一种化学聚合引发剂(d);和一种填料(e)。不对称的丙烯酰胺-甲基丙烯酸酯化合物(a)由以下一般式(1)表示:其中X是可选择取代的线性或支链的C1到C6脂肪族基团或可选择取代的芳香族基团,脂肪族基团可选择地被来自由—O—、—S—、—CO—、—CO—O—、—O—CO—、—NR1—、—CO—NR1—、—NR1—CO—、—CO—O—NR1—、—O—CO—NR1—和—NR1—CO—NR1—组成的至少一种连接基团中断,且R1是氢原子或可选择取代的线性或支链的C1到C6脂肪族基团。