Relationship of Broken Root Canal Instruments to Endodontic Case Prognosis: A Clinical Investigation

Crump, Merwyn C.; Natkin, Eugene

doi:10.14219/jada.archive.1970.0259

Cited by 125 publications

(92 citation statements)

References 3 publications

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“…In contrast to all previous reports, our study included predominantly rotary NiTi instruments, and showed that retained rotary NiTi fragments do not adversely affect outcome any more than do steel hand files. Although we found only a small effect on outcome for a retained fractured instrument, it is likely that the ultimate prognosis may depend on the stage and degree of canal preparation when instrument breakage occurs and, therefore, the extent to which microbial control is compromised (1,4,12,24). This information was not available from our study sample.…”

Section: Discussionmentioning

confidence: 81%

The Impact of Instrument Fracture on Outcome of Endodontic Treatment

Spili

Parashos

Messer

2005

Journal of Endodontics

266

255

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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 healing rates were 91.8% for cases with a fractured instrument and 94.5% for matched controls (p Ͼ 0.05, Fisher's exact test). Healing in both groups was lower in teeth with a preoperative periapical radiolucency (86.7% versus 92.9%, p Ͼ 0.05). In the hands of skilled endodontists prognosis was not significantly affected by the presence of a retained fractured instrument.

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Section: Discussionmentioning

confidence: 81%

The Impact of Instrument Fracture on Outcome of Endodontic Treatment

Spili

Parashos

Messer

2005

Journal of Endodontics

266

255

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“…[9] According to some authors, the retained fractured instrument can be incorporated into the final root canal filling. [10] The four treatment protocols have been suggested by the literature for management of fractured instruments in root canals: 1. Allowing the separated instrument to be retained in the canal and treating the remaining portion of canal.…”

Section: Discussionmentioning

confidence: 99%

Endodontic Management of Separated Instrument in Mandibular First Molar- A Case Report

Jasrotia¹,

Sharma²

2017

IOSR JDMS

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“…The prognosis depends on 3 factors: What stage of instrumentation the separation occurred; Preoperative status of pulp and Periradicular tissues; Whether or not the file can be removed or bypassed. 12 If the preoperative pulp was vital, an uninfected prognosis is better. In case if there is presence of necrotic and infected pulp and apical periodontitis, the prognosis will be uncertain.…”

Section: Impact Of Retained Separated Instruments On Treatment Outcomementioning

confidence: 99%

Separated Instruments- A Mind-Set Between Hard and Rock- A Review

Deepika¹,

Mitthra²,

Anuradha³

et al. 2017

jemds

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BACKGROUNDWith an increased practice of rotary endodontics in recent years separated rotary nickel-titanium (NiTi) files in root canals is the most commonly reported mishap, causing lot of stress and anxiety among clinicians and patients. No clear guidelines can be drawn from the literature available, because there are either too few studies about the effects of broken files on prognosis or few studies that have been performed on patients. The prognosis is also dependent on file location, prior condition of the pulp, presence or absence of periapical lesion and many other factors. Intracanal separation of endodontic instruments may hinder cleaning and shaping procedures within the root canal system with a potential impact on the outcome of treatment. This article presents an overview of the literature regarding management of separated intracanal instruments.

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Relationship of Broken Root Canal Instruments to Endodontic Case Prognosis: A Clinical Investigation

Cited by 125 publications

References 3 publications

The Impact of Instrument Fracture on Outcome of Endodontic Treatment

The Impact of Instrument Fracture on Outcome of Endodontic Treatment

Endodontic Management of Separated Instrument in Mandibular First Molar- A Case Report

Separated Instruments- A Mind-Set Between Hard and Rock- A Review

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