title: A study of long-term toxicity of endodontic materials with use of an in vitro model.
mesh_terms: D000818:Animals; D002417:Cattle; D002478:Cells, Cultured; D003782:Dental Pulp / Q000187:drug effects*; D005557:Formaldehyde / Q000633:toxicity; D006171:Gutta-Percha / Q000633:toxicity; D066298:In Vitro Techniques; D012387:Root Canal Filling Materials / Q000633:toxicity*; D013995:Time
chemical_list: D012387:Root Canal Filling Materials; D005557:Formaldehyde; D006171:Gutta-Percha