The effect of canal preparation on periapical disease.
D000328:Adult; D003782:Dental Pulp / Q000382:microbiology; D003788:Dental Pulp Diseases / Q000382:microbiology; D006801:Humans; D010483:Periapical Diseases / Q000503:physiopathology*; D012390:Root Canal Therapy / Q000379:methods*