Release and diffusion of hydroxyl ion from calcium hydroxide-based medicaments

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dc.contributor.authorGuerreiro-Tanomaru, Juliane Maria [UNESP]
dc.contributor.authorChula, Daniele Guidette [UNESP]
dc.contributor.authorde Pontes Lima, Regina Karla [UNESP]
dc.contributor.authorVilela Camargo Berbert, Fabio Luis [UNESP]
dc.contributor.authorTanomaru-Filho, Mario [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:47:00Z
dc.date.available2014-05-20T13:47:00Z
dc.date.issued2012-08-01
dc.description.abstractThe release and diffusion of hydroxyl ions (OH-) of calcium hydroxide (Ca(OH)2)-based intracanal medications may be affected by the association with other substances. The aim of this study was to evaluate the diffusion of OH- ions through root dentin by the medications: G1, Ca(OH)2/saline; G2, Calen; G3, Calen/camphorated p-monochlorophenol (CMCP); and G4, Calen/0.4% chlorhexidine (CHX). Root canals from bovine teeth were prepared in a standardized manner. A cavity until dentin was prepared in the middle third of the root surface of each specimen. The external surface of the root was made impermeable using a layer of adhesive, except the prepared cavity. The root canals were filled with different medications, and teeth were individually stored in flasks containing 10 ml distilled water at 37 degrees C. The water pH was measured at 1, 3, 7, 14, 21, 30, and 60 days. Data obtained were subjected to anova and Tukeys tests. Increase in pH was observed at 3 days for Calen/CHX and from 7 to 14 days for the other mixtures. Calen paste promoted pH increase up to 21 days. Calen/CMCP had the highest pH up to 21 days, and all groups had similar results at 30 days. At 60 days, the greatest pH values were observed for Calen/CMCP and Calen alone. All different formulations of Ca(OH)2-based medications tested release hydroxyl ion that can diffuse through the dentin.en
dc.description.affiliationUNESP Univ Estadual Paulista, Dept Restorat Dent, Araraquara Dent Sch, Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista, Dept Restorat Dent, Araraquara Dent Sch, Araraquara, SP, Brazil
dc.format.extent320-323
dc.identifierhttp://dx.doi.org/10.1111/j.1600-9657.2011.01112.x
dc.identifier.citationDental Traumatology. Hoboken: Wiley-blackwell, v. 28, n. 4, p. 320-323, 2012.
dc.identifier.doi10.1111/j.1600-9657.2011.01112.x
dc.identifier.issn1600-4469
dc.identifier.urihttp://hdl.handle.net/11449/16678
dc.identifier.wosWOS:000306282100014
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofDental Traumatology
dc.relation.ispartofjcr1.414
dc.relation.ispartofsjr0,724
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcalcium hydroxideen
dc.subjectendodonticsen
dc.subjectpHen
dc.subjectvehicleen
dc.titleRelease and diffusion of hydroxyl ion from calcium hydroxide-based medicamentsen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.orcid0000-0002-2574-4706[5]
unesp.author.orcid0000-0003-0446-2037[1]
unesp.author.orcid0000-0001-5230-0492[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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Artigos - Odontologia Restauradora - FOAR