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Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study

Introduction: This study was carried out to evaluate the bacterial leakage of root canal fillings when cavity varnish containing 5% fluoride (Duraflur) was used as root canal sealer. Methods and Materials: Root canals of 88 straight single-rooted teeth were prepared. Eighty teeth were randomly divid...

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Autores principales: Parirokh, Masoud, Talebizad, Mohammad, Forghani, Farshid Reza, Haghdoost, Ali Akabar, Asgary, Saeed, Eghbal, Mohammad Jafar, Goddousi, Jamileh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Iranian Center for Endodontic Research 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4293584/
https://www.ncbi.nlm.nih.gov/pubmed/25598813
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author Parirokh, Masoud
Talebizad, Mohammad
Forghani, Farshid Reza
Haghdoost, Ali Akabar
Asgary, Saeed
Eghbal, Mohammad Jafar
Goddousi, Jamileh
author_facet Parirokh, Masoud
Talebizad, Mohammad
Forghani, Farshid Reza
Haghdoost, Ali Akabar
Asgary, Saeed
Eghbal, Mohammad Jafar
Goddousi, Jamileh
author_sort Parirokh, Masoud
collection PubMed
description Introduction: This study was carried out to evaluate the bacterial leakage of root canal fillings when cavity varnish containing 5% fluoride (Duraflur) was used as root canal sealer. Methods and Materials: Root canals of 88 straight single-rooted teeth were prepared. Eighty teeth were randomly divided into 3 experimental groups (n=20) and two positive and negative control groups of ten each. The roots in group I and II were obturated with gutta-percha and AH-26 sealer using lateral condensation technique. The root canal walls in group II were coated with a layer of varnish before obturation. In group III the canals were obturated with gutta-percha and fluoride varnish as the sealer. Enterococcus faecalis (E. faecalis) was used to determine the bacterial leakage during 90 days. The Kaplan Meier survival analysis was used for assessing the leakage and log rank test was used for pairwise comparison. The rest of eight single rooted teeth were selected for scanning electron microscopy (SEM) evaluation with 5000× magnification. Results: Leakage occurred between 20 to 89 days. Group III showed significantly less bacterial penetration than groups I and II (P=0.001 and P=0.011, respectively). However, there was no significant difference between group I and II (P>0.05). SEM evaluation showed that the varnish had covered all dentinal tubules. Conclusion: The present study showed promising results for the use of fluoride varnish as root canal sealer but further in vitro and in vivo studies are needed.
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spelling pubmed-42935842015-01-16 Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study Parirokh, Masoud Talebizad, Mohammad Forghani, Farshid Reza Haghdoost, Ali Akabar Asgary, Saeed Eghbal, Mohammad Jafar Goddousi, Jamileh Iran Endod J Original Article Introduction: This study was carried out to evaluate the bacterial leakage of root canal fillings when cavity varnish containing 5% fluoride (Duraflur) was used as root canal sealer. Methods and Materials: Root canals of 88 straight single-rooted teeth were prepared. Eighty teeth were randomly divided into 3 experimental groups (n=20) and two positive and negative control groups of ten each. The roots in group I and II were obturated with gutta-percha and AH-26 sealer using lateral condensation technique. The root canal walls in group II were coated with a layer of varnish before obturation. In group III the canals were obturated with gutta-percha and fluoride varnish as the sealer. Enterococcus faecalis (E. faecalis) was used to determine the bacterial leakage during 90 days. The Kaplan Meier survival analysis was used for assessing the leakage and log rank test was used for pairwise comparison. The rest of eight single rooted teeth were selected for scanning electron microscopy (SEM) evaluation with 5000× magnification. Results: Leakage occurred between 20 to 89 days. Group III showed significantly less bacterial penetration than groups I and II (P=0.001 and P=0.011, respectively). However, there was no significant difference between group I and II (P>0.05). SEM evaluation showed that the varnish had covered all dentinal tubules. Conclusion: The present study showed promising results for the use of fluoride varnish as root canal sealer but further in vitro and in vivo studies are needed. Iranian Center for Endodontic Research 2015 2014-12-24 /pmc/articles/PMC4293584/ /pubmed/25598813 Text en © 2015, Iranian Center for Endodontic Research This is an Open Access article distributed under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Parirokh, Masoud
Talebizad, Mohammad
Forghani, Farshid Reza
Haghdoost, Ali Akabar
Asgary, Saeed
Eghbal, Mohammad Jafar
Goddousi, Jamileh
Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study
title Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study
title_full Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study
title_fullStr Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study
title_full_unstemmed Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study
title_short Fluoride Varnish as Root Canal Sealer: A Scanning Electron Microscopy and Bacterial Penetration Study
title_sort fluoride varnish as root canal sealer: a scanning electron microscopy and bacterial penetration study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4293584/
https://www.ncbi.nlm.nih.gov/pubmed/25598813
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