title: Debate on N2: is N2 an acceptable method of treatment?
mesh_terms: D003782:Dental Pulp; D003790:Dental Pulp Necrosis / Q000188:drug therapy; D005557:Formaldehyde; D012387:Root Canal Filling Materials; D012390:Root Canal Therapy
chemical_list: D012387:Root Canal Filling Materials; D005557:Formaldehyde