Setting time and thermal expansion of two endodontic cements

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dc.contributor.authorSantos, Alailson D. [UNESP]
dc.contributor.authorAraujo, Eudes B. [UNESP]
dc.contributor.authorYukimitu, Keizo [UNESP]
dc.contributor.authorBarbosa, Jose C. [UNESP]
dc.contributor.authorMoraes, João Carlos Silos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:44Z
dc.date.available2014-05-20T13:29:44Z
dc.date.issued2008-09-01
dc.description.abstractThe purpose of this study was to evaluate the setting time and the thermal expansion coefficient of 2 endodontic cements, MTA-Angelus and a novel cement called CER. The setting time was determined in accordance to ANSI/ADA specifications no. 57. Three samples of 10 mm diameter and 2 mm thickness were prepared for each cement. The thermal expansion measurements were performed by strain gauge technique. Four samples of each cement were prepared using silicone rings of 5 mm diameter and 2 mm thickness. The data were analyzed statistically using the Student t test. The setting time obtained for the MTA-Angelus and CER cements was 15 (SD 1) min and 7 (SD 1) min, respectively. The linear coefficient of thermal expansion was 8.86 (SD 0.28) mu strain/degrees C for MTA-Angelus and 11.76 (SD 1.20) mu strain/degrees C for CER. The statistical analysis showed significant difference (P < .05) in the setting time and linear coefficient of thermal expansion between the 2 cements. The CER cement has a coefficient of expansion similar to dentin, which could contribute to a decrease of microleakage degree.en
dc.description.affiliationState Univ São Paulo, Dept Chem & Phys, Ilha Solteira, Brazil
dc.description.affiliationState Univ São Paulo, Dept Exact Sci, Jaboticabal, Brazil
dc.description.affiliationUnespState Univ São Paulo, Dept Chem & Phys, Ilha Solteira, Brazil
dc.description.affiliationUnespState Univ São Paulo, Dept Exact Sci, Jaboticabal, Brazil
dc.format.extentE77-E79
dc.identifierhttp://dx.doi.org/10.1016/j.tripleo.2008.04.021
dc.identifier.citationOral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology. New York: Mosby-elsevier, v. 106, n. 3, p. E77-E79, 2008.
dc.identifier.doi10.1016/j.tripleo.2008.04.021
dc.identifier.issn1079-2104
dc.identifier.lattes8507741729691974
dc.identifier.urihttp://hdl.handle.net/11449/10056
dc.identifier.wosWOS:000258449300038
dc.language.isoeng
dc.publisherMosby-elsevier
dc.relation.ispartofOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleSetting time and thermal expansion of two endodontic cementsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderMosby-elsevier
unesp.author.lattes8507741729691974
unesp.author.orcid0000-0002-0814-0038
unesp.author.orcid0000-0002-0814-0038
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Física e Química - FEIS
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