A shaped body based on an organically polymerized silica (hetero)polycondensate which has been formed by organic polymerization of a polysiloxane component which has been produced by hydrolytic condensation of one or more monomeric silanes having exclusively two or three hydrolysable groups and at least one organically polymerizable radical being bonded to the silicon atom via carbon, wherein the shaped body is obtainable with the aid of a radiation-induced printing process according to the technique of the one-photon polymerization process, wherein - the shaped body is produced by solidifying a liquid or viscous material which contains a polysiloxane component formed by hydrolytic condensation of one or more monomeric silanes having exclusively two or three hydrolyzable groups and at least one organically polymerizable radical being bonded to the silicon atom via carbon, and an initiator and/or catalyst for the radiation-induced polymerization of the organically polymerizable radical, wherein the liquid or viscous material is a composite containing inorganic particles having an average primary particle diameter of 0.1 to 5 μm or inorganic particles in agglomerated or dispersed form having an average primary particle diameter of 5 to 100 nm or inorganic-organic hybride polymers or fibrous additives or inorganic fillers, and - the solidification is effected by directing light from a radiation source onto a region of a surface of a substrate, a layer of the liquid or viscous material located there being subjected to organic polymerization by the action of radiation and thereby solidified, whereupon further layers of the liquid or viscous material, each of which is located on the layer of the last solidified material, are successively solidified with the aid of this radiation source, wherein the shaped body has a flexural strength, as determined with a 3-point flexural test according to test standard DIN EN ISO 4049: 2009 with the universal testing machine Z100 of the company Zwick/Roell, with the changes that instead of water storage a dry storage preceded and that the feed rate was 3 mm/min, of at least 60 MPa and/or a modulus of elasticity, as determined in the linear range of the stress-strain curve between 10-20 MPa over the secant, of at least 1.4 GPa. - the shaped body is produced by solidifying a liquid or viscous material which contains a polysiloxane component formed by hydrolytic condensation of one or more monomeric silanes having exclusively two or three hydrolyzable groups and at least one organically polymerizable radical being bonded to the silicon atom via carbon, and an initiator and/or catalyst for the radiation-induced polymerization of the organically polymerizable radical, wherein the liquid or viscous material is a composite containing inorganic particles having an average primary particle diameter of 0.1 to 5 μm or inorganic particles in agglomerated or dispersed form having an average primary particle diameter of 5 to 100 nm or inorganic-organic hybride polymers or fibrous additives or inorganic fillers, and - the solidification is effected by directing light from a radiation source onto a region of a surface of a substrate, a layer of the liquid or viscous material located there being subjected to organic polymerization by the action of radiation and thereby solidified, whereupon further layers of the liquid or viscous material, each of which is located on the layer of the last solidified material, are successively solidified with the aid of this radiation source,