A free-radically curable dental composition comprising a.) chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, b.) disiloxanes substituted by free-radically polymerizable groups and having the following structure: R 1 a R 2 (3-a) Si-O-SiR 2 (3-b) R 1 b with R 2: alkyl, alkenyl, aryl, alkylaryl, arylalkyl, wherein different R 2 may be the same or different, R 1: YZ, Z: free-radically polymerizable group selected from the structural elements -O-(C=O)-CH=CH 2, -O-(C=O)-C(CH 3)=CH 2, - (C=0) -CH=CH 2, - (C=0) -C (CH 3)=CH 2, -CH=CH 2, -C (CH 3)=CH 2, -NH- (C=0) -CH=CH 2 and -NH- (C=0) -C (CH 3)=CH 2, wherein different Z may be the same or different, a: 1 or 2, b: 1 or 2, Y: a connecting element which links the silicon atom to the free-radically polymerizable group and consists of an alkylene group, wherein the alkylene group is an unsubstituted, linear, straight-chain or branched hydrocarbyl chain or wherein the alkylene group is an unsubstituted hydrocarbyl group interrupted by a urethane group, urea group, ester group, thiourethane group or amide group or wherein the alkylene group is a hydrocarbyl group substituted by a hydroxyl group or this hydroxyl group has been esterified or etherified or wherein the alkylene group is a hydrocarbyl group interrupted by an oxygen atom and/or nitrogen atom and/or sulfur atom and/or ester groups and/or thioester groups and substituted by a hydroxyl group or this hydroxyl group has been esterified or etherified and wherein different Y may be the same or different and wherein Y contains 20 or fewer carbon atoms and wherein YZ is chosen such that Z always has a maximum number of atoms, c.) optionally one, two, three or more free-radically curable monomers having no silicon atom, d.) 85 percent by weight or less of one or more fillers based on the total weight of the free-radically curable dental composition, e.) photoinitiators for the free-radical polymerization and f.) further customary additives, wherein the photoinitiators are characterized in that they absorb light in the wavelength range from 300 to 700 nm. a.) chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, b.) disiloxanes substituted by free-radically polymerizable groups and having the following structure: R 1 a R 2 (3-a) Si-O-SiR 2 (3-b) R 1 b with R 2: alkyl, alkenyl, aryl, alkylaryl, arylalkyl, wherein different R 2 may be the same or different, R 1: YZ, Z: free-radically polymerizable group selected from the structural elements -O-(C=O)-CH=CH 2, -O-(C=O)-C(CH 3)=CH 2, - (C=0) -CH=CH 2, - (C=0) -C (CH 3)=CH 2, -CH=CH 2, -C (CH 3)=CH 2, -NH- (C=0) -CH=CH 2 and -NH- (C=0) -C (CH 3)=CH 2, wherein different Z may be the same or different, a: 1 or 2, b: 1 or 2, Y: a connecting element which links the silicon atom to the free-radically polymerizable group and consists of an alkylene group, wherein the alkylene group is an unsubstituted, linear, straight-chain or branched hydrocarbyl chain or wherein the alkylene group is an unsubstituted hydrocarbyl group interrupted by a urethane group, urea group, ester group, thiourethane group or amide group or wherein the alkylene group is a hydrocarbyl group substituted by a hydroxyl group or this hydroxyl group has been esterified or etherified or wherein the alkylene group is a hydrocarbyl group interrupted by an oxygen atom and/or nitrogen atom and/or sulfur atom and/or ester groups and/or thioester groups and substituted by a hydroxyl group or this hydroxyl group has been esterified or etherified and wherein different Y may be the same or different and wherein Y contains 20 or fewer carbon atoms and wherein YZ is chosen such that Z always has a maximum number of atoms, R 2: alkyl, alkenyl, aryl, alkylaryl, arylalkyl, wherein different R 2 may be the same or different, R 1: YZ, Z: free-radically polymerizable group selected from the structural elements -O-(C=O)-CH=CH 2, -O-(C=O)-C(CH 3)=CH 2, - (C=0) -CH=CH 2, - (C=0) -C (CH 3)=CH 2, -CH=CH 2, -C (CH 3)=CH 2, -NH- (C=0) -CH=CH 2 and -NH- (C=0) -C (CH 3)=CH 2, wherein different Z may be the same or different, a: 1 or 2, b: 1 or 2, Y: a connecting element which links the silicon atom to the free-radically polymerizable group and consists of an alkylene group, wherein the alkylene group is an unsubstituted, linear, straight-chain or branched hydrocarbyl chain or wherein the alkylene group is an unsubstituted hydrocarbyl group interrupted by a urethane group, urea group, ester group, thiourethane group or amide group or wherein the alkylene group is a hydrocarbyl group substituted by a hydroxyl group or this hydroxyl group has been esterified or etherified or wherein the alkylene group is a hydrocarbyl group interrupted by an oxygen atom and/or nitrogen atom and/or sulfur atom and/or ester groups and/or thioester groups and substituted by a hydroxyl group or this hydroxyl group has been esterified or etherified and wherein different Y may be the same or different and wherein Y contains 20 or fewer carbon atoms and wherein YZ is chosen such that Z always has a maximum number of atoms, c.) optionally one, two, three or more free-radically curable monomers having no silicon atom, d.) 85 percent by weight or less of one or more fillers based on the total weight of the free-radically curable dental composition, e.) photoinitiators for the free-radical polymerization and f.) further customary additives,