[A survey on microbial culture tests used for endodontic treatment, especially in the United States and Canada].
D001431:Bacteriological Techniques; D002170:Canada; D003782:Dental Pulp / Q000382:microbiology; D004497:Education, Dental; D004708:Endodontics / Q000193:education*; D012390:Root Canal Therapy / Q000379:methods; D014481:United States