Dental, light-curable, one-component composite composition, comprising: monomers, fillers, and initiators, characterized in that - the viscosity η 20 of the composite composition at 20°C is greater than 400 Pa*s and - the viscosity η 50 of the composite composition at 50°C is less than 150 Pa*s and - the quotient η 50 /η 20 of the viscosity of the composite composition at 50°C and the viscosity of the composite composition at 20°C is less than 0.125, wherein the monomers consist of 10% to 60% by weight, preferably 20% to 50% by weight, more preferably 25% to 40% by weight, of light-curable bi- or tricyclic compounds Q(Y x Z e) b where Q denotes a saturated or olefinically unsaturated bi- or tricyclic structural element, each index b is a natural number selected from the group of the natural numbers 1, 2, and 3, each Z denotes a light-curable group, each index e is a natural number selected from the group of the natural numbers 1, 2 and 3, each Y in the structure Q(Y x Z e) b with x = 1 denotes a structural element which connects the structural element Q to e structural elements Z and which denotes a straight or branched alkylene group, where the alkylene group may be interrupted by oxygen atoms, and each index x is 0 or 1, 40% to 90% by weight, preferably 50% to 80% by weight, more preferably 60% to 75% by weight, of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]-propane (bis-GMA) and/or light-curable derivatives of diisocyanatodiphenylmethane and/or light-curable derivatives of tetramethyl-m-xylylene diisocyanate (TMXDI), 0% to 15% by weight, preferably 0% to 10% by weight, more preferably 0% to 5% by weight, most preferably 0% by weight, of further free-radically polymerizable monomers that cannot be assigned to or, where the percentages by weight of, and are based on the total mass of the monomers. monomers, fillers, and initiators, - the viscosity η 20 of the composite composition at 20°C is greater than 400 Pa*s and - the viscosity η 50 of the composite composition at 50°C is less than 150 Pa*s and - the quotient η 50 /η 20 of the viscosity of the composite composition at 50°C and the viscosity of the composite composition at 20°C is less than 0.125, the monomers consist of 10% to 60% by weight, preferably 20% to 50% by weight, more preferably 25% to 40% by weight, of light-curable bi- or tricyclic compounds Q(Y x Z e) b where Q denotes a saturated or olefinically unsaturated bi- or tricyclic structural element, each index b is a natural number selected from the group of the natural numbers 1, 2, and 3, each Z denotes a light-curable group, each index e is a natural number selected from the group of the natural numbers 1, 2 and 3, each Y in the structure Q(Y x Z e) b with x = 1 denotes a structural element which connects the structural element Q to e structural elements Z and which denotes a straight or branched alkylene group, where the alkylene group may be interrupted by oxygen atoms, and each index x is 0 or 1, 40% to 90% by weight, preferably 50% to 80% by weight, more preferably 60% to 75% by weight, of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]-propane (bis-GMA) and/or light-curable derivatives of diisocyanatodiphenylmethane and/or light-curable derivatives of tetramethyl-m-xylylene diisocyanate (TMXDI), 0% to 15% by weight, preferably 0% to 10% by weight, more preferably 0% to 5% by weight, most preferably 0% by weight, of further free-radically polymerizable monomers that cannot be assigned to or, where the percentages by weight of, and are based on the total mass of the monomers. 10% to 60% by weight, preferably 20% to 50% by weight, more preferably 25% to 40% by weight, of light-curable bi- or tricyclic compounds Q(Y x Z e) b where Q denotes a saturated or olefinically unsaturated bi- or tricyclic structural element, each index b is a natural number selected from the group of the natural numbers 1, 2, and 3, each Z denotes a light-curable group, each index e is a natural number selected from the group of the natural numbers 1, 2 and 3, each Y in the structure Q(Y x Z e) b with x = 1 denotes a structural element which connects the structural element Q to e structural elements Z and which denotes a straight or branched alkylene group, where the alkylene group may be interrupted by oxygen atoms, and each index x is 0 or 1, 40% to 90% by weight, preferably 50% to 80% by weight, more preferably 60% to 75% by weight, of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]-propane (bis-GMA) and/or light-curable derivatives of diisocyanatodiphenylmethane and/or light-curable derivatives of tetramethyl-m-xylylene diisocyanate (TMXDI), 0% to 15% by weight, preferably 0% to 10% by weight, more preferably 0% to 5% by weight, most preferably 0% by weight, of further free-radically polymerizable monomers that cannot be assigned to or, where the percentages by weight of, and are based on the total mass of the monomers.