Apical extrusion of debris during the preparation of oval root canals: a comparative study between a full-sequence SAF system and a rotary file system supplemented by XP-endo finisher file

Anda Kfir, Rotem Moza-Levi, Moran Herteanu, Amir Weissman, Ronald Wigler

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives: The purpose of this study was to assess the amount of apically extruded debris during the preparation of oval canals with either a rotary file system supplemented by the XP-endo Finisher file or a full-sequence self-adjusting file (SAF) system. Materials and methods: Sixty mandibular incisors were randomly assigned to two groups: group A: stage 1—glide path preparation with Pre-SAF instruments. Stage 2—cleaning and shaping with SAF. Group B: stage 1—glide path preparation with ProGlider file. Stage 2—cleaning and shaping with ProTaper Next system. Stage 3—Final cleaning with XP-endo Finisher file. The debris extruded during each of the stages was collected, and the debris weights were compared between the groups and between the stages within the groups using t tests with a significance level set at P < 0.05. Results: The complete procedure for group B resulted in significantly more extruded debris compared to group A. There was no significant difference between the stages in group A, while there was a significant difference between stage 2 and stages 1 and 3 in group B, but no significant difference between stages 1 and 3. Conclusions: Both instrumentation protocols resulted in extruded debris. Rotary file followed by XP-endo Finisher file extruded significantly more debris than a full-sequence SAF system. Each stage, in either procedure, had its own contribution to the extrusion of debris. Clinical relevance: Final preparation with XP-endo Finisher file contributes to the total amount of extruded debris, but the clinical relevance of the relative difference in the amount of apically extruded debris remains unclear.

Original languageEnglish
Pages (from-to)707-713
Number of pages7
JournalClinical Oral Investigations
Volume22
Issue number2
DOIs
StatePublished - 1 Mar 2018

Keywords

  • Debris extrusion
  • Oval canals
  • Pre-SAF
  • Self-adjusting file
  • XP-endo Finisher file

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