Patent ID: 7101942

Claim:
Dental material containing a cluster according to the general formula [(M 1 ) a (M 2 ) b O c (OH) d (OR) e (L-Sp-Z) f ] (I) in which M 1 , M 2 independently of each other, stand for a metal atom of the IIIrd or Vth main groups or the Ist to VIIIth sub-groups of the periodic table; R is an alkyl group with 1 to 6 carbon atoms; L is a co-ordinating group with 2 to 6 complexing centres; Sp is a spacer group or is absent; Z is a polymerizable group; a is a number from 1 to 20; b is a number from 0 to 10; c is a number from 1 to 30; d, e independently of each other, are in each case a number from 0 to 30; f is a number from 2 to 30, any charge of the cluster (I) present being neutralized by counterions, one or more further polymerizable components, and at least one filler.