Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth

The aim of this study was to evaluate the influence of applying 2% chlorhexidine for 30 seconds after phosphoric acid conditioning of dentin on the immediate and long-term bond strengths in deciduous teeth. The occlusal enamel was removed from 40 human sound deciduous molars, which were exfoliated b...

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Main Authors: Vicente Castelo Branco Leitune, Fernando Freitas Portella, Priscila Veit Bohn, Fabrício Mezzomo Collares, Susana Maria Werner Samuel
Format: Article
Language:English
Published: Sociedade Brasileira de Pesquisa Odontológica 2011-10-01
Series:Brazilian Oral Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242011000500003
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author Vicente Castelo Branco Leitune
Fernando Freitas Portella
Priscila Veit Bohn
Fabrício Mezzomo Collares
Susana Maria Werner Samuel
author_facet Vicente Castelo Branco Leitune
Fernando Freitas Portella
Priscila Veit Bohn
Fabrício Mezzomo Collares
Susana Maria Werner Samuel
author_sort Vicente Castelo Branco Leitune
collection DOAJ
description The aim of this study was to evaluate the influence of applying 2% chlorhexidine for 30 seconds after phosphoric acid conditioning of dentin on the immediate and long-term bond strengths in deciduous teeth. The occlusal enamel was removed from 40 human sound deciduous molars, which were exfoliated by natural means, and the dentin was conditioned with 37% phosphoric acid for 15 seconds and washed with running water. The specimens were divided into two groups of 20 teeth. The test group received an application of 2% chlorhexidine for 30 seconds prior to a three-step etch-and-rinse adhesive system, whereas the control group received only the adhesive system. Three cylindrical restorations were made with a composite resin for each tooth. Ten teeth in each group were submitted to a microshear bond strength test after 24 hours, while the remaining teeth were stored in distilled water at 37 °C for 6 months before testing the microshear bond strength. The test group had a higher bond strength than did the control group after 6 months of storage. No statistical differences were found when groups with the same dentin treatment were compared at different times. Short applications of chlorhexidine at low concentrations prevent hybrid layer degradation and positively affect bond strength over time.
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spelling doaj.art-15f4560bd588458d9f4a2384cc83f4652022-12-22T01:20:05ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1806-83242011-10-0125538839210.1590/S1806-83242011000500003Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teethVicente Castelo Branco LeituneFernando Freitas PortellaPriscila Veit BohnFabrício Mezzomo CollaresSusana Maria Werner SamuelThe aim of this study was to evaluate the influence of applying 2% chlorhexidine for 30 seconds after phosphoric acid conditioning of dentin on the immediate and long-term bond strengths in deciduous teeth. The occlusal enamel was removed from 40 human sound deciduous molars, which were exfoliated by natural means, and the dentin was conditioned with 37% phosphoric acid for 15 seconds and washed with running water. The specimens were divided into two groups of 20 teeth. The test group received an application of 2% chlorhexidine for 30 seconds prior to a three-step etch-and-rinse adhesive system, whereas the control group received only the adhesive system. Three cylindrical restorations were made with a composite resin for each tooth. Ten teeth in each group were submitted to a microshear bond strength test after 24 hours, while the remaining teeth were stored in distilled water at 37 °C for 6 months before testing the microshear bond strength. The test group had a higher bond strength than did the control group after 6 months of storage. No statistical differences were found when groups with the same dentin treatment were compared at different times. Short applications of chlorhexidine at low concentrations prevent hybrid layer degradation and positively affect bond strength over time.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242011000500003ChlorhexidineToothDeciduousMatrix Metalloproteinases
spellingShingle Vicente Castelo Branco Leitune
Fernando Freitas Portella
Priscila Veit Bohn
Fabrício Mezzomo Collares
Susana Maria Werner Samuel
Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
Brazilian Oral Research
Chlorhexidine
Tooth
Deciduous
Matrix Metalloproteinases
title Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
title_full Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
title_fullStr Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
title_full_unstemmed Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
title_short Influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
title_sort influence of chlorhexidine application on longitudinal adhesive bond strength in deciduous teeth
topic Chlorhexidine
Tooth
Deciduous
Matrix Metalloproteinases
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242011000500003
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AT priscilaveitbohn influenceofchlorhexidineapplicationonlongitudinaladhesivebondstrengthindeciduousteeth
AT fabriciomezzomocollares influenceofchlorhexidineapplicationonlongitudinaladhesivebondstrengthindeciduousteeth
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