A non-cellular dental tissue regeneration promoting kit is provided that makes effective dental tissue regeneration possible without transplantation of autologous or allogeneic stem cells or components derived from stem cells. The kit comprises: a pretreatment agent comprising a serine protease; and a non-cellular root canal filling material, the non-cellular root canal filling material comprising: a regeneration promoting compound including at least one of a CCR3 antagonist, a CCL11 neutralizing antibody, and an ALK5 inhibitor; and an extracellular matrix. The kit is preferably used for middle-aged or elderly individuals.