Nonsurgical retreatment of a postsurgical endodontic failure.
D003751:Dental Fistula / Q000209:etiology / Q000628:therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D010483:Periapical Diseases / Q000209:etiology / Q000628:therapy; D012390:Root Canal Therapy / Q000009:adverse effects* / Q000379:methods