Journal article

The impact of instrument fracture on outcome of endodontic treatment

P Spili, P Parasbos, HH Messer

JOURNAL OF ENDODONTICS | ELSEVIER SCIENCE INC | Published : 2005

Abstract

Adoption of rotary nickel-titanium instruments has renewed concerns regarding instrument fracture and its consequences. The frequency of instrument fracture and its impact on treatment outcome were determined from an analysis of specialist endodontic practice records involving 8460 cases. A case-control study of treatment outcomes was conducted on a subset of 146 teeth with a retained instrument fragment (plus 146 matched controls), for which clinical and radiographic follow-up of at least 1 year was available. Masked radiographs were assessed by two calibrated examiners. Overall prevalence of retained fractured instruments was 3.3% of treated teeth. In the case-control study, overall healin..

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University of Melbourne Researchers