title: Evaluation of standardized root canal instruments and obturating points.
mesh_terms: D003762:Dental Instruments / Q000592:standards*; D005069:Evaluation Studies as Topic; D006171:Gutta-Percha / Q000592:standards; D012387:Root Canal Filling Materials / Q000592:standards*; D012390:Root Canal Therapy / Q000295:instrumentation*; D012834:Silver / Q000592:standards
chemical_list: D012387:Root Canal Filling Materials; D012834:Silver; D006171:Gutta-Percha