pH changes at the surface of root dentin when using root canal sealers containing calcium hydroxide

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorEsberard, Roberto Miranda
dc.date2014-05-27T11:18:08Z
dc.date2016-10-25T18:14:04Z
dc.date2014-05-27T11:18:08Z
dc.date2016-10-25T18:14:04Z
dc.date1996-12-01
dc.date.accessioned2017-04-06T00:48:08Z
dc.date.available2017-04-06T00:48:08Z
dc.identifierJournal of Endodontics, v. 22, n. 8, p. 399-401, 1996.
dc.identifier0099-2399
dc.identifierhttp://hdl.handle.net/11449/64898
dc.identifierhttp://acervodigital.unesp.br/handle/11449/64898
dc.identifier10.1016/S0099-2399(96)80238-X
dc.identifier2-s2.0-0030208127
dc.identifierhttp://dx.doi.org/10.1016/S0099-2399(96)80238-X
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/886673
dc.descriptionThe purpose of this study was to investigate long-term pH changes in cavities prepared in root surface dentin of extracted teeth after obturation of the root canal with gutta-percha and a variety of sealers containing calcium hydroxide. After cleaning and shaping, root canals in 50 recently extracted, human single-rooted teeth were divided into five groups. Each of four groups was obturated with gutta-percha and either Sealapex, Sealer 26, Apexit, or CRCS, all of which contain calcium hydroxide. The remaining group served as the control and was not obturated with gutta-percha or sealer. Cavities were prepared in the facial surface of the roots in the cervical and middle regions. The pH was measured in these dentinal cavities at the initiation of the experiment, and 3, 7, 14, 21, 28, 45, 60, 90, and 120 days after obturation. Results indicate that the pH at the surface of the root does not become alkaline when calcium hydroxide cements are used as root canal sealers. Regardless of the sealer used, the observed pattern of pH change was not different from that seen in the control group of roots that were not treated with sealer. It is concluded that calcium hydroxide-containing cements, although suitable for use as root canal sealants, do not produce an alkaline pH at the root surface. If such a pH change is related to treatment of root resorption, these sealants do not contribute to this treatment. Copyright © 1996 by The American Association of Endodontists.
dc.languageeng
dc.relationJournal of Endodontics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectApexit
dc.subjectbismuth
dc.subjectCalcibiotic Root Canal Sealer
dc.subjectcalcium hydroxide
dc.subjecthydroxyl radical
dc.subjectroot canal filling material
dc.subjectsalicylic acid derivative
dc.subjectsealapex
dc.subjectSealer 26
dc.subjectzinc oxide
dc.subjectchemistry
dc.subjectdentin
dc.subjectdiffusion
dc.subjectdrug effect
dc.subjecthuman
dc.subjectmetabolism
dc.subjectpH
dc.subjectsurface property
dc.subjecttooth cervix
dc.subjecttooth disease
dc.subjecttooth permeability
dc.subjecttooth root
dc.subjectBismuth
dc.subjectCalcium Hydroxide
dc.subjectDentin
dc.subjectDentin Permeability
dc.subjectDiffusion
dc.subjectHumans
dc.subjectHydrogen-Ion Concentration
dc.subjectHydroxyl Radical
dc.subjectRoot Canal Filling Materials
dc.subjectRoot Resorption
dc.subjectSalicylates
dc.subjectSurface Properties
dc.subjectTooth Cervix
dc.subjectTooth Root
dc.subjectZinc Oxide
dc.titlepH changes at the surface of root dentin when using root canal sealers containing calcium hydroxide
dc.typeOtro


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