Open apices: creating an apical stop with a zinc acetate-grossman's cement mixture on a gutta percha cone.
D003738:Dental Cements; D003786:Dental Pulp Cavity; D006171:Gutta-Percha; D006801:Humans; D012387:Root Canal Filling Materials
D003738:Dental Cements; D012387:Root Canal Filling Materials; D006171:Gutta-Percha