| abstract |
Dental composition comprising an aqueous mixture containing n(i) a polymerizable acidic phosphoric acid ester monomer of the following formula (A):n nwherein na is an integer of from 1 to 10; R 1 represents a hydrogen atom or a moiety of the following formula (Y)n nwherein X independently represent an oxygen atom, a sulfur atom, or a group NR, wherein R may be a hydrogen atom, a C 1 - 6 alkyl group or an acyl group; L represents an ( a + b )-valent organic residue containing 1 to 20 carbon atoms and optionally including ether, thioether or amino groups or further acidic groups, whereby the carbon atoms comprise at least a + b carbon atoms selected from primary and secondary aliphatic carbon atoms, secondary alicyclic carbon atoms, and aromatic carbon atoms, each of said a + b carbon atoms linking a phosphate or 2-(oxaallyl) derivative group; b is an integer of from 1 to 10; nR 2 which may be the same or different, independently may be hydrogen, an allyl group or a moiety R 1 wherein b is 1; provided that at least one of R 1 and R 2 is not hydrogen; n n(ii) one or more polymerizable N-substituted alkyl acrylic or acrylic acid amide monomers; n(iii) an organic water-miscible solvent and/or water; n(iv) a polymerization initiator; n(v) an inhibitor and/or a stabilizer; n(vi) optionally an organic or inorganic acid; and n(vii) optionally a filler and/or a fluoride releasing compound. |