A light-hardenable orthodontic resin composition comprises: (wt.%) (A) urethane bond-free (meth)acrylate having average mol. wt. 100-300 and containing at least one double bond (5-50); (B) urethane bond-containing (meth)acrylate having average mol. wt. 300-5,000 and containing at least one double bond (10-60); (C) polyurethane powder including a crosslinker (5-30); (D) inorganic filler, optionally up to 60% of which is replaced by an organic filler (10-50); and (E) hardening initiator (0.3-3).
