Effect of nickel-titanium engine-driven instrument rotational speed on root canal morphology

W. Bruce Poulsen; S. Brent Dove; Carlos E. del Rio

doi:10.1016/S0099-2399(06)81113-1

Effect of nickel-titanium engine-driven instrument rotational speed on root canal morphology

W. Bruce Poulsen, S. Brent Dove, Carlos E. del Rio

Comprehensive Dentistry

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Thirty-six mesial canals in 18 extracted human mandibular molars were randomly allocated to three experimental groups. Specimens were prepared and evaluated using a modified Bramante technique. Teeth were sectioned at the midroot and apical regions. Canals were prepared with the Lighspeed instruments rotating at 750, 1300, or 2000 rpm. Digitized unistrumented and instrumented canal images were compared via subtraction software. There was no significant difference (p < 0.05) among the three experimental groups in the amount of dentin removed, canal transportation, or the ability of the instrument to remain centered in the canal.

Original language	English (US)
Pages (from-to)	609-612
Number of pages	4
Journal	Journal of endodontics
Volume	21
Issue number	12
DOIs	https://doi.org/10.1016/S0099-2399(06)81113-1
State	Published - Dec 1995

ASJC Scopus subject areas

Dentistry(all)

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title = "Effect of nickel-titanium engine-driven instrument rotational speed on root canal morphology",

abstract = "Thirty-six mesial canals in 18 extracted human mandibular molars were randomly allocated to three experimental groups. Specimens were prepared and evaluated using a modified Bramante technique. Teeth were sectioned at the midroot and apical regions. Canals were prepared with the Lighspeed instruments rotating at 750, 1300, or 2000 rpm. Digitized unistrumented and instrumented canal images were compared via subtraction software. There was no significant difference (p < 0.05) among the three experimental groups in the amount of dentin removed, canal transportation, or the ability of the instrument to remain centered in the canal.",

author = "Poulsen, {W. Bruce} and Dove, {S. Brent} and {del Rio}, {Carlos E.}",

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AB - Thirty-six mesial canals in 18 extracted human mandibular molars were randomly allocated to three experimental groups. Specimens were prepared and evaluated using a modified Bramante technique. Teeth were sectioned at the midroot and apical regions. Canals were prepared with the Lighspeed instruments rotating at 750, 1300, or 2000 rpm. Digitized unistrumented and instrumented canal images were compared via subtraction software. There was no significant difference (p < 0.05) among the three experimental groups in the amount of dentin removed, canal transportation, or the ability of the instrument to remain centered in the canal.

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