The effect of German chamomile (Marticaria recutita L.) extract and tea tree (Melaleuca alternifolia L.) oil used as irrigants on removal of smear layer: a scanning electron microscopy study.

Atieh Sadr Lahijani MS, Kateb HR. Raoof, Heady R, D. Yazdani

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

AIM:To compare the cleaning effectiveness of chamomile hydroalcoholic extract and tea tree oil to 2.5% sodium hypochlorite (NaOCl) solution as an intracanal irrigant for the removal of the smear layer.METHODOLOGY:Forty extracted, single-rooted, mature, permanent, human teeth were allocated at random into one of three experimental groups of ten teeth and two control groups of five teeth. For each tooth, the pulp chamber was accessed and the canal prepared using K-type files and Gates-Glidden burs, using a step-back technique; the apical stop was prepared to a size 30. Each canal was subsequently irrigated with one of the following solutions: distilled water (as a negative control), 2.5% NaOCl + 17% ethylenediamine tetraacetic acid (EDTA) (as a positive control), chamomile or tea tree oil or 2.5% NaOCl. Each tooth was split longitudinally and prepared for examination by scanning electron microscopy (SEM). The quantity of smear layer remaining on the three levels of each canal (coronal, middle and apical) was examined using magnifications of 2000 and 5000x. The data were analysed using nonparametric Kruskal-Wallis and Mann-Whitney U-tests.RESULTS:The most effective removal of smear layer occurred with the use of NaOCl with a final rinse of 17% EDTA (negative control) followed by the use of a chamomile extract. Chamomile extract was found to be significantly more effective than distilled water and tea tree oil (P < 0.008). The use of a 2.5% NaOCl solution alone, without EDTA and that of tea tree oil, was found to have only minor effects. There was no statistical difference between distilled water, 2.5% NaOCl and tea tree oil.CONCLUSIONS:The efficacy of chamomile to remove smear layer was superior to NaOCl alone but less than NaOCl combined with EDTA.
Original languageEnglish
Pages (from-to)190-195
Number of pages6
JournalInternational Endodontic Journal
Volume39
Issue number3
DOIs
Publication statusPublished - Mar 2006

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ethylenediamine
Tea Tree Oil
Matricaria
Chamomile
Smear Layer
Tea
Electron Scanning Microscopy
Tooth
Acids
Water
Sodium Hypochlorite
Dental Pulp Cavity
Nonparametric Statistics
Control Groups

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@article{dca1a52e6df24ef0bcc8b7a5269ec932,
title = "The effect of German chamomile (Marticaria recutita L.) extract and tea tree (Melaleuca alternifolia L.) oil used as irrigants on removal of smear layer: a scanning electron microscopy study.",
abstract = "AIM:To compare the cleaning effectiveness of chamomile hydroalcoholic extract and tea tree oil to 2.5{\%} sodium hypochlorite (NaOCl) solution as an intracanal irrigant for the removal of the smear layer.METHODOLOGY:Forty extracted, single-rooted, mature, permanent, human teeth were allocated at random into one of three experimental groups of ten teeth and two control groups of five teeth. For each tooth, the pulp chamber was accessed and the canal prepared using K-type files and Gates-Glidden burs, using a step-back technique; the apical stop was prepared to a size 30. Each canal was subsequently irrigated with one of the following solutions: distilled water (as a negative control), 2.5{\%} NaOCl + 17{\%} ethylenediamine tetraacetic acid (EDTA) (as a positive control), chamomile or tea tree oil or 2.5{\%} NaOCl. Each tooth was split longitudinally and prepared for examination by scanning electron microscopy (SEM). The quantity of smear layer remaining on the three levels of each canal (coronal, middle and apical) was examined using magnifications of 2000 and 5000x. The data were analysed using nonparametric Kruskal-Wallis and Mann-Whitney U-tests.RESULTS:The most effective removal of smear layer occurred with the use of NaOCl with a final rinse of 17{\%} EDTA (negative control) followed by the use of a chamomile extract. Chamomile extract was found to be significantly more effective than distilled water and tea tree oil (P < 0.008). The use of a 2.5{\%} NaOCl solution alone, without EDTA and that of tea tree oil, was found to have only minor effects. There was no statistical difference between distilled water, 2.5{\%} NaOCl and tea tree oil.CONCLUSIONS:The efficacy of chamomile to remove smear layer was superior to NaOCl alone but less than NaOCl combined with EDTA.",
keywords = "Chamomile extract, Irrigation solution, Smear layer, Sodium hypochlorite, Tea tree oil",
author = "{Sadr Lahijani MS}, Atieh and Raoof, {Kateb HR.} and {Heady R} and D. Yazdani",
note = "Imported on 12 Apr 2017 - DigiTool details were: month (773h) = March, 2006; Journal title (773t) = International Endodontic Journal. ISSNs: 1365-2591;",
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pages = "190--195",
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The effect of German chamomile (Marticaria recutita L.) extract and tea tree (Melaleuca alternifolia L.) oil used as irrigants on removal of smear layer : a scanning electron microscopy study. / Sadr Lahijani MS, Atieh; Raoof, Kateb HR.; Heady R; Yazdani, D.

In: International Endodontic Journal, Vol. 39, No. 3, 03.2006, p. 190-195.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effect of German chamomile (Marticaria recutita L.) extract and tea tree (Melaleuca alternifolia L.) oil used as irrigants on removal of smear layer

T2 - a scanning electron microscopy study.

AU - Sadr Lahijani MS, Atieh

AU - Raoof, Kateb HR.

AU - Heady R, null

AU - Yazdani, D.

N1 - Imported on 12 Apr 2017 - DigiTool details were: month (773h) = March, 2006; Journal title (773t) = International Endodontic Journal. ISSNs: 1365-2591;

PY - 2006/3

Y1 - 2006/3

N2 - AIM:To compare the cleaning effectiveness of chamomile hydroalcoholic extract and tea tree oil to 2.5% sodium hypochlorite (NaOCl) solution as an intracanal irrigant for the removal of the smear layer.METHODOLOGY:Forty extracted, single-rooted, mature, permanent, human teeth were allocated at random into one of three experimental groups of ten teeth and two control groups of five teeth. For each tooth, the pulp chamber was accessed and the canal prepared using K-type files and Gates-Glidden burs, using a step-back technique; the apical stop was prepared to a size 30. Each canal was subsequently irrigated with one of the following solutions: distilled water (as a negative control), 2.5% NaOCl + 17% ethylenediamine tetraacetic acid (EDTA) (as a positive control), chamomile or tea tree oil or 2.5% NaOCl. Each tooth was split longitudinally and prepared for examination by scanning electron microscopy (SEM). The quantity of smear layer remaining on the three levels of each canal (coronal, middle and apical) was examined using magnifications of 2000 and 5000x. The data were analysed using nonparametric Kruskal-Wallis and Mann-Whitney U-tests.RESULTS:The most effective removal of smear layer occurred with the use of NaOCl with a final rinse of 17% EDTA (negative control) followed by the use of a chamomile extract. Chamomile extract was found to be significantly more effective than distilled water and tea tree oil (P < 0.008). The use of a 2.5% NaOCl solution alone, without EDTA and that of tea tree oil, was found to have only minor effects. There was no statistical difference between distilled water, 2.5% NaOCl and tea tree oil.CONCLUSIONS:The efficacy of chamomile to remove smear layer was superior to NaOCl alone but less than NaOCl combined with EDTA.

AB - AIM:To compare the cleaning effectiveness of chamomile hydroalcoholic extract and tea tree oil to 2.5% sodium hypochlorite (NaOCl) solution as an intracanal irrigant for the removal of the smear layer.METHODOLOGY:Forty extracted, single-rooted, mature, permanent, human teeth were allocated at random into one of three experimental groups of ten teeth and two control groups of five teeth. For each tooth, the pulp chamber was accessed and the canal prepared using K-type files and Gates-Glidden burs, using a step-back technique; the apical stop was prepared to a size 30. Each canal was subsequently irrigated with one of the following solutions: distilled water (as a negative control), 2.5% NaOCl + 17% ethylenediamine tetraacetic acid (EDTA) (as a positive control), chamomile or tea tree oil or 2.5% NaOCl. Each tooth was split longitudinally and prepared for examination by scanning electron microscopy (SEM). The quantity of smear layer remaining on the three levels of each canal (coronal, middle and apical) was examined using magnifications of 2000 and 5000x. The data were analysed using nonparametric Kruskal-Wallis and Mann-Whitney U-tests.RESULTS:The most effective removal of smear layer occurred with the use of NaOCl with a final rinse of 17% EDTA (negative control) followed by the use of a chamomile extract. Chamomile extract was found to be significantly more effective than distilled water and tea tree oil (P < 0.008). The use of a 2.5% NaOCl solution alone, without EDTA and that of tea tree oil, was found to have only minor effects. There was no statistical difference between distilled water, 2.5% NaOCl and tea tree oil.CONCLUSIONS:The efficacy of chamomile to remove smear layer was superior to NaOCl alone but less than NaOCl combined with EDTA.

KW - Chamomile extract

KW - Irrigation solution

KW - Smear layer

KW - Sodium hypochlorite

KW - Tea tree oil

U2 - 10.1111/j.1365-2591.2006.01073.x

DO - 10.1111/j.1365-2591.2006.01073.x

M3 - Article

VL - 39

SP - 190

EP - 195

JO - Journal of the British Endodontic Society

JF - Journal of the British Endodontic Society

SN - 0143-2885

IS - 3

ER -