Negishi, Jun Risk analysis of failure of root canal treatment for teeth with inaccessible apical constriction. [electronic resource] - Journal of dentistry May 2005 - 399-404 p. digital Publication Type: Journal Article ISSN: 0300-5712 Standard No.: 10.1016/j.jdent.2004.11.003 doi Subjects--Topical Terms: AdultAgedConstriction, PathologicDental Restoration FailureFemaleHumansMaleMiddle AgedOdds RatioOdontometryPrognosisProportional Hazards ModelsRetrospective StudiesRiskRoot Canal TherapyTooth Apex--pathology