A comparison of the efficacy of Er,Cr: YSGG laser and rotary instrumention in root canal débridement

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Abstract

Background. The authors evaluated the efficacy of an erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) laser-powered hydrokinetic system (HKS) versus that of rotary instrumentation for root canal débridement. Methods. The authors studied four uninstrumented controls and two test groups of 18 matched pairs of teeth. Teeth from each pair underwent different instrumentation but received identical irrigation solutions. The instrumentation protocol involved either rotary instrumentation or the Er,Cr:YSGG laser. The irrigation groups received 0.5 milliliter of distilled water or 5.25 percent sodium hypochlorite (NaOCl) between instruments. The authors measured the amount of debris remaining at 2 and 4 mm from the apex as a percentage of total lumen area. Results. Lased canals had significantly more debris than did canals that received rotary instrumentation (Wilcoxon signed rank test, P <.001). With distilled water irrigation, the debris remaining in lased canals at both the 2- and 4-mm levels was not statistically different from that remaining in uninstrumented controls. Rotary instrumentation yielded significantly less remaining debris than did laser instrumentation (Wilcoxon signed rank test, P <.001). With 5.25 percent NaOCl irrigation, there was no difference in remaining debris between the two groups (Wilcoxon signed rank test, P <.001). The lased group received significantly more irrigant than did the rotary group (Wilcoxon rank sum test, P <.001). Conclusions. This study indicates that the débridement efficacy of the HKS with distilled water irrigation is unacceptable; with 5.25 percent NaOCl irrigation, it is similar to that of rotary instrumentation. Clinical Implications. If the HKS is to be used for débridement, then NaOCl irrigation must be used for predictable tissue removal.

Original languageEnglish (US)
Pages (from-to)1261-1266
Number of pages6
JournalJournal of the American Dental Association
Volume137
Issue number9
StatePublished - Sep 2006

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Dental Pulp Cavity
Solid-State Lasers
Nonparametric Statistics
Erbium
Chromium
Water
Tooth
Sodium Hypochlorite
Lasers
Research Design

Keywords

  • Débridement
  • Endodontic treatment
  • Er,Cr:YSGG
  • Hydrokinetic system
  • Laser
  • Root canal

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

@article{42beaee768d14027bac5dcc4b6353990,
title = "A comparison of the efficacy of Er,Cr: YSGG laser and rotary instrumention in root canal d{\'e}bridement",
abstract = "Background. The authors evaluated the efficacy of an erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) laser-powered hydrokinetic system (HKS) versus that of rotary instrumentation for root canal d{\'e}bridement. Methods. The authors studied four uninstrumented controls and two test groups of 18 matched pairs of teeth. Teeth from each pair underwent different instrumentation but received identical irrigation solutions. The instrumentation protocol involved either rotary instrumentation or the Er,Cr:YSGG laser. The irrigation groups received 0.5 milliliter of distilled water or 5.25 percent sodium hypochlorite (NaOCl) between instruments. The authors measured the amount of debris remaining at 2 and 4 mm from the apex as a percentage of total lumen area. Results. Lased canals had significantly more debris than did canals that received rotary instrumentation (Wilcoxon signed rank test, P <.001). With distilled water irrigation, the debris remaining in lased canals at both the 2- and 4-mm levels was not statistically different from that remaining in uninstrumented controls. Rotary instrumentation yielded significantly less remaining debris than did laser instrumentation (Wilcoxon signed rank test, P <.001). With 5.25 percent NaOCl irrigation, there was no difference in remaining debris between the two groups (Wilcoxon signed rank test, P <.001). The lased group received significantly more irrigant than did the rotary group (Wilcoxon rank sum test, P <.001). Conclusions. This study indicates that the d{\'e}bridement efficacy of the HKS with distilled water irrigation is unacceptable; with 5.25 percent NaOCl irrigation, it is similar to that of rotary instrumentation. Clinical Implications. If the HKS is to be used for d{\'e}bridement, then NaOCl irrigation must be used for predictable tissue removal.",
keywords = "D{\'e}bridement, Endodontic treatment, Er,Cr:YSGG, Hydrokinetic system, Laser, Root canal",
author = "Radatti, {Daniel A.} and Baumgartner, {John (Craig)} and Marshall, {J (Gordon)}",
year = "2006",
month = "9",
language = "English (US)",
volume = "137",
pages = "1261--1266",
journal = "Journal of the American Dental Association",
issn = "0002-8177",
publisher = "American Dental Association",
number = "9",

}

TY - JOUR

T1 - A comparison of the efficacy of Er,Cr

T2 - YSGG laser and rotary instrumention in root canal débridement

AU - Radatti, Daniel A.

AU - Baumgartner, John (Craig)

AU - Marshall, J (Gordon)

PY - 2006/9

Y1 - 2006/9

N2 - Background. The authors evaluated the efficacy of an erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) laser-powered hydrokinetic system (HKS) versus that of rotary instrumentation for root canal débridement. Methods. The authors studied four uninstrumented controls and two test groups of 18 matched pairs of teeth. Teeth from each pair underwent different instrumentation but received identical irrigation solutions. The instrumentation protocol involved either rotary instrumentation or the Er,Cr:YSGG laser. The irrigation groups received 0.5 milliliter of distilled water or 5.25 percent sodium hypochlorite (NaOCl) between instruments. The authors measured the amount of debris remaining at 2 and 4 mm from the apex as a percentage of total lumen area. Results. Lased canals had significantly more debris than did canals that received rotary instrumentation (Wilcoxon signed rank test, P <.001). With distilled water irrigation, the debris remaining in lased canals at both the 2- and 4-mm levels was not statistically different from that remaining in uninstrumented controls. Rotary instrumentation yielded significantly less remaining debris than did laser instrumentation (Wilcoxon signed rank test, P <.001). With 5.25 percent NaOCl irrigation, there was no difference in remaining debris between the two groups (Wilcoxon signed rank test, P <.001). The lased group received significantly more irrigant than did the rotary group (Wilcoxon rank sum test, P <.001). Conclusions. This study indicates that the débridement efficacy of the HKS with distilled water irrigation is unacceptable; with 5.25 percent NaOCl irrigation, it is similar to that of rotary instrumentation. Clinical Implications. If the HKS is to be used for débridement, then NaOCl irrigation must be used for predictable tissue removal.

AB - Background. The authors evaluated the efficacy of an erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) laser-powered hydrokinetic system (HKS) versus that of rotary instrumentation for root canal débridement. Methods. The authors studied four uninstrumented controls and two test groups of 18 matched pairs of teeth. Teeth from each pair underwent different instrumentation but received identical irrigation solutions. The instrumentation protocol involved either rotary instrumentation or the Er,Cr:YSGG laser. The irrigation groups received 0.5 milliliter of distilled water or 5.25 percent sodium hypochlorite (NaOCl) between instruments. The authors measured the amount of debris remaining at 2 and 4 mm from the apex as a percentage of total lumen area. Results. Lased canals had significantly more debris than did canals that received rotary instrumentation (Wilcoxon signed rank test, P <.001). With distilled water irrigation, the debris remaining in lased canals at both the 2- and 4-mm levels was not statistically different from that remaining in uninstrumented controls. Rotary instrumentation yielded significantly less remaining debris than did laser instrumentation (Wilcoxon signed rank test, P <.001). With 5.25 percent NaOCl irrigation, there was no difference in remaining debris between the two groups (Wilcoxon signed rank test, P <.001). The lased group received significantly more irrigant than did the rotary group (Wilcoxon rank sum test, P <.001). Conclusions. This study indicates that the débridement efficacy of the HKS with distilled water irrigation is unacceptable; with 5.25 percent NaOCl irrigation, it is similar to that of rotary instrumentation. Clinical Implications. If the HKS is to be used for débridement, then NaOCl irrigation must be used for predictable tissue removal.

KW - Débridement

KW - Endodontic treatment

KW - Er,Cr:YSGG

KW - Hydrokinetic system

KW - Laser

KW - Root canal

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C2 - 16946431

AN - SCOPUS:33749354352

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JO - Journal of the American Dental Association

JF - Journal of the American Dental Association

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