| abstract |
Novel (meth)acrylate monomers are provided having the general formulan n where n X isn n R is H, OH, CH₃, orn n R' is H or CH₃ n Z is Br or I, or a mixture of these substituents n m is 0 or 1 n n is 3 to 5 n p is 3 to 5 n and n t is 0 or 1, n with the proviso that when X is 0 then R is OH orn n and m is 1. n The monomers exhibit X-ray opacity and can be incorporated into denture base compositions based on polymethylmethacrylate. |