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Broken Instrument Removal

NCT05128266 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 161

Last updated 2023-05-09

No results posted yet for this study

Summary

The aims of this retrospective analysis are (1) to evaluate the success rate of a non-surgical retreatment of teeth with broken file instrument into the canal using ultrasounds, microscope and a modified spinal needle, (2) to assess the outcome of the treatment if the remaining fragment was left, bypassed or removed from the root canal in terms of survival rate of the treated teeth after a 5-years follow up period.

Conditions

  • Endodontically Treated Teeth
  • Endodontical Retreatment

Interventions

PROCEDURE

Endodontical Retreatment

1. Linear canal Removal of the coronal dentine in order to create the space useful to an extractor to catch and remove the instrument. The preferred instrument to reach this aim is a .15 or .20 ultrasonic tip. 2. Curve canal When the instrument is broken inside a curve canal, it is not possible to create a circumferential space around the separated instrument without the risk of root perforation. Thus, the first step is the removal of the dentine of the external wall of the root canal. The second step is the removal of the dentine of the internal wall of the root canal. This selective removal of dentinal tissue unlocks thee separated instrument and determines its mobilization. Thus, the irrigation itself makes the instrument available for the removal. After the removal of the broken instrument, root canal preparation was completed Canal filling was performed based on Schilder's technique.

Sponsors & Collaborators

  • Catholic University of the Sacred Heart

    lead OTHER

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
1991-01-01
Primary Completion
2014-12-31
Completion
2019-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05128266 on ClinicalTrials.gov