title: Concentration of lead in various endodontic filling materials.
mesh_terms: D005557:Formaldehyde; D006171:Gutta-Percha / Q000032:analysis; D006801:Humans; D007854:Lead / Q000032:analysis*; D007855:Lead Poisoning; D011108:Polymers; D012387:Root Canal Filling Materials / Q000032:analysis*
chemical_list: D011108:Polymers; D012387:Root Canal Filling Materials; D005557:Formaldehyde; D007854:Lead; D006171:Gutta-Percha