title: The effect of standard or serial preparation on single cone obturation.
mesh_terms: D003763:Dental Leakage / Q000175:diagnosis*; D006171:Gutta-Percha / Q000008:administration & dosage; D006801:Humans; D011670:Pulpectomy / Q000379:methods*; D012387:Root Canal Filling Materials / Q000008:administration & dosage; D012389:Root Canal Obturation / Q000379:methods*
chemical_list: D012387:Root Canal Filling Materials; D006171:Gutta-Percha