Relationship of broken root canal instruments to endodontic case prognosis: a clinical investigation.
D003786:Dental Pulp Cavity; D005500:Follow-Up Studies; D005547:Foreign Bodies / Q000209:etiology*; D006801:Humans; D010347:Patient Care Planning; D011379:Prognosis; D012390:Root Canal Therapy / Q000009:adverse effects / Q000295:instrumentation*; D014081:Tooth Extraction