Cargando…

Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement

STATEMENT OF THE PROBLEM: Endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. PURPOSE: The aim of this study was to compare the effect of calcium hydroxide (Ca(OH)(2)) and 2% chlorhexidine gel (CHX) on bond strength of fiber post cemented with resin...

Descripción completa

Detalles Bibliográficos
Autores principales: Zare Jahromi, Maryam, Barekatain, Mehrdad, Ravanbod, Shirin, Ranjbarian, Parisa, Kousehlar, Sara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Journal of Dentistry Shiraz University of Medical Sciences 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5346406/
https://www.ncbi.nlm.nih.gov/pubmed/28293665
_version_ 1782513877886435328
author Zare Jahromi, Maryam
Barekatain, Mehrdad
Ravanbod, Shirin
Ranjbarian, Parisa
Kousehlar, Sara
author_facet Zare Jahromi, Maryam
Barekatain, Mehrdad
Ravanbod, Shirin
Ranjbarian, Parisa
Kousehlar, Sara
author_sort Zare Jahromi, Maryam
collection PubMed
description STATEMENT OF THE PROBLEM: Endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. PURPOSE: The aim of this study was to compare the effect of calcium hydroxide (Ca(OH)(2)) and 2% chlorhexidine gel (CHX) on bond strength of fiber post cemented with resin cement to root dentin. MATERIALS AND METHOD: This in vitro experimental study was conducted on 36 mandibular premolars. Canals were prepared using the step back technique. After root canal irrigation, the teeth were divided into three groups of 12. Ca(OH)(2) paste and CHX gel were used as intracanal medicaments in the first and second groups respectively. No intracanal medicament was used in the third group (control group). Access cavities were then sealed and the teeth were incubated for one week. The root canals were then filled using gutta percha and AH26 sealer and the teeth were incubated for 72 hours. Tooth crowns were then cut at the level of the cementoenamel junction and intracanal posts were placed. The teeth were mounted in auto-polymerizing acrylic resin, and incubated for one week .They were then sectioned into 1.5mm thick slices from their coronal surface using a fully automated cutting machine, and subjected to push-out test until failure. The load at debonding was recorded and data were analyzed using one-way ANOVA, post-hoc test and t-test. The coronal margin of the root was at the level of the surface of acrylic resin in the mold. RESULTS: The mean bond strength was 4.45 MPa in the Ca(OH)(2), 2.45 MPa in the CHX and 2.48 MPa in the control group. The difference in this regard was statistically significant among groups (p= 0.04). The Ca(OH)(2) group had significant differences with the CHX and control groups (p= 0.03 and p= 0.02, respectively). The difference between the CHX and control groups was not significant (p= 0.974). CONCLUSION: Based on the results, Ca(OH)(2) increased the bond strength of fiber post to root dentin but 2% CHX had no effect on bond strength.
format Online
Article
Text
id pubmed-5346406
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Journal of Dentistry Shiraz University of Medical Sciences
record_format MEDLINE/PubMed
spelling pubmed-53464062017-03-14 Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement Zare Jahromi, Maryam Barekatain, Mehrdad Ravanbod, Shirin Ranjbarian, Parisa Kousehlar, Sara J Dent (Shiraz) Original Article STATEMENT OF THE PROBLEM: Endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. PURPOSE: The aim of this study was to compare the effect of calcium hydroxide (Ca(OH)(2)) and 2% chlorhexidine gel (CHX) on bond strength of fiber post cemented with resin cement to root dentin. MATERIALS AND METHOD: This in vitro experimental study was conducted on 36 mandibular premolars. Canals were prepared using the step back technique. After root canal irrigation, the teeth were divided into three groups of 12. Ca(OH)(2) paste and CHX gel were used as intracanal medicaments in the first and second groups respectively. No intracanal medicament was used in the third group (control group). Access cavities were then sealed and the teeth were incubated for one week. The root canals were then filled using gutta percha and AH26 sealer and the teeth were incubated for 72 hours. Tooth crowns were then cut at the level of the cementoenamel junction and intracanal posts were placed. The teeth were mounted in auto-polymerizing acrylic resin, and incubated for one week .They were then sectioned into 1.5mm thick slices from their coronal surface using a fully automated cutting machine, and subjected to push-out test until failure. The load at debonding was recorded and data were analyzed using one-way ANOVA, post-hoc test and t-test. The coronal margin of the root was at the level of the surface of acrylic resin in the mold. RESULTS: The mean bond strength was 4.45 MPa in the Ca(OH)(2), 2.45 MPa in the CHX and 2.48 MPa in the control group. The difference in this regard was statistically significant among groups (p= 0.04). The Ca(OH)(2) group had significant differences with the CHX and control groups (p= 0.03 and p= 0.02, respectively). The difference between the CHX and control groups was not significant (p= 0.974). CONCLUSION: Based on the results, Ca(OH)(2) increased the bond strength of fiber post to root dentin but 2% CHX had no effect on bond strength. Journal of Dentistry Shiraz University of Medical Sciences 2017-03 /pmc/articles/PMC5346406/ /pubmed/28293665 Text en Copyright: © Journal of Dentistry Shiraz University of Medical Sciences http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Zare Jahromi, Maryam
Barekatain, Mehrdad
Ravanbod, Shirin
Ranjbarian, Parisa
Kousehlar, Sara
Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement
title Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement
title_full Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement
title_fullStr Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement
title_full_unstemmed Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement
title_short Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement
title_sort comparison of endodontic medicaments on bond strength of fiber post to root dentin using resin cement
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5346406/
https://www.ncbi.nlm.nih.gov/pubmed/28293665
work_keys_str_mv AT zarejahromimaryam comparisonofendodonticmedicamentsonbondstrengthoffiberposttorootdentinusingresincement
AT barekatainmehrdad comparisonofendodonticmedicamentsonbondstrengthoffiberposttorootdentinusingresincement
AT ravanbodshirin comparisonofendodonticmedicamentsonbondstrengthoffiberposttorootdentinusingresincement
AT ranjbarianparisa comparisonofendodonticmedicamentsonbondstrengthoffiberposttorootdentinusingresincement
AT kousehlarsara comparisonofendodonticmedicamentsonbondstrengthoffiberposttorootdentinusingresincement