Dental light-curable composition and corresponding restorations, production methods and uses

A dental light-curable composition for elective production of a visible restoration in the anterior region or for filling of a cavity in the posterior region,

• comprising
• a total amount (A) of free-radically polymerizable monomers, where this total amount (A) consists of one, two, three or more than three free-radically polymerizable monomers and has a refractive index nA, 470 nm in the range from 1.470 to 1.560,
• a total amount (B1) of nonaggregated and nonagglomerated inorganic filler particles having a particle size in the range from 7 to 70 nm, where this total amount (B1) has a refractive index nB1, 470 nm in the range from 1.460 to 1.570 and where this total amount (B1) is in the range from 10 to 30 percent by volume, based on the overall dental light-curable composition,
• a total amount (B2) of inorganic filler particles having a particle size in the range from 0.12 μm to 10 μm, where this total amount (B2) has a refractive index nB2, 470 nm in the range from 1.450 to 1.560,
• and
• a total amount (C) of photoinitiators,
• where the following condition applies to the refractive indices of the total amount (A) of free-radically polymerizable monomers and the total amount (B1) of nonaggregated and nonagglomerated inorganic filler particles having a particle size in the range from 7 to 70 nm:
• nB1,470 nm−0.025<nA,470 nm<nB1,470 nm+0.030
• and
• where the following condition applies to the refractive indices of the total amount (A) of free-radically polymerizable monomers and the total amount (B2) of inorganic filler particles having a particle size in the range from 0.12 μm to 10 μm:
• nB2,470 nm−0.015<nA,470 nm<nB2,470 nm+0.040
• and
• where the following condition applies to the refractive indices of the total amount (B1) of nonaggregated and nonagglomerated inorganic filler particles having a particle size in the range from 7 to 70 nm and the total amount (B2) of inorganic filler particles having a particle size in the range from 0.12 μm to 10 μm:
• nB2,470 nm−0.020<nB1,470 nm<nB2,470 nm+0.035.