Stereolithographically produced shaped dental parts and method for production from photopolymerizable composite resin compositions

The use of a flowable, photopolymerizable composite resin composition having a dynamic viscosity of less than 5 Pa·s at 23° C., preferably less than 3 Pa·s at 23° C., more preferably 0.5-2.5 Pa·s at 23° C., more preferably 1.0-2.0 Pa·s at 23° C., preferably measured using a plate-plate rheometer having an upper plate diameter of 25 mm at a shear stress of 50 Pa, comprising:

• a) free-radically photopolymerizable monomers and/or oligomers, preferably mixtures of free-radically photopolymerizable monomers and oligomers,
• b) an organically surface-modified and optionally partially agglomerated and/or aggregated nanosize filler incorporated into the composite resin composition, where
• the primary particles of the filler have a primary particle size of less than 100 nm, preferably less than 80 nm, more preferably less than 60 nm, particularly preferably less than 40 nm, and
• said filler in dispersion comprises dispersed primary filler particles and optionally filler aggregates and/or filler agglomerates having a diameter which is
• greater than 40 nm, preferably greater than 90 nm, and
• less than 1000 nm, preferably less than 800 nm, more preferably less than 600 nm, more preferably less than 400 nm, more preferably less than 200 nm, more preferably less than 150 nm,
• and is, for example, in the range from 40 to 1000 nm, preferably from 40 to 800 nm, particularly preferably from 40 to 600 nm,
• c) at least one photoinitiator,
• d) optionally a stabilizer and
• e) optionally pigment particles,
• f) optionally a stabilized free radical
• for the stereolithographic production of a shaped dental part, in particular bridges and crowns, based on said composite resin composition.