title: Hard tissue induction into pulpless open-apex teeth using collagen-calcium phosphate gel.
mesh_terms: D002130:Calcium Phosphates / Q000627:therapeutic use*; D002648:Child; D003094:Collagen / Q000627:therapeutic use*; D006801:Humans; D007180:Incisor / Q000293:injuries; D008297:Male; D009967:Orthodontic Appliances / Q000706:statistics & numerical data; D012389:Root Canal Obturation; D014082:Tooth Fractures
chemical_list: D002130:Calcium Phosphates; D003094:Collagen