Non-destructive thermal wave method applied to study thermal properties of fast setting time endodontic cement

dc.contributorUniversidade Estadual de Maringá (UEM)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorPicolloto, A. M.
dc.creatorMariucci, V. V. G.
dc.creatorSzpak, W.
dc.creatorMedina, A. N.
dc.creatorBaesso, M. L.
dc.creatorAstrath, N. G. C.
dc.creatorAstrath, F. B. G.
dc.creatorSantos, A. D. [UNESP]
dc.creatorMoraes, J. C. S. [UNESP]
dc.creatorBento, A. C.
dc.date2014-12-03T13:11:51Z
dc.date2014-12-03T13:11:51Z
dc.date2013-11-21
dc.date.accessioned2023-09-09T10:19:01Z
dc.date.available2023-09-09T10:19:01Z
dc.identifierhttp://dx.doi.org/10.1063/1.4829921
dc.identifierJournal Of Applied Physics. Melville: Amer Inst Physics, v. 114, n. 19, 10 p., 2013.
dc.identifier0021-8979
dc.identifierhttp://hdl.handle.net/11449/113644
dc.identifier10.1063/1.4829921
dc.identifierWOS:000327592400058
dc.identifierWOS000327592400058.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8763239
dc.descriptionThe thermal wave method is applied for thermal properties measurement in fast endodontic cement (CER). This new formula is developed upon using Portland cement in gel and it was successfully tested in mice with good biocompatibility and stimulated mineralization. Recently, thermal expansion and setting time were measured, conferring to this material twice faster hardening than the well known Angelus Mineral trioxide aggregate (MTA) the feature of fast hardening (similar to 7 min) and with similar thermal expansion (similar to 12 mu strain/degrees C). Therefore, it is important the knowledge of thermal properties like thermal diffusivity, conductivity, effusivity in order to match thermally the tissue environment upon its application in filling cavities of teeth. Photothermal radiometry technique based on Xe illumination was applied in CER disks 600 mu m thick for heating, with prepared in four particle sizes (25, 38, 45, and 53) (mu) under barm, which were added microemulsion gel with variation volumes (140, 150, 160, and 170) mu l. The behavior of the thermal diffusivity CER disks shows linear decay for increase emulsion volume, and in contrast, thermal diffusivity increases with particles sizes. Aiming to compare to MTA, thermal properties of CER were averaged to get the figure of merit for thermal diffusivity as (44.2 +/- 3.6) x 10(-3) cm(2)/s, for thermal conductivity (228 +/- 32) mW/cm K, the thermal effusivity (1.09 +/- 0.06) W s(0.5)/cm(2) K and volume heat capacity (5.2 +/- 0.7) J/cm(3) K, which are in excellent agreement with results of a disk prepared from commercial MTA-Angelus (grain size < 10 mu m using 57 mu l of distilled water). (C) 2013 AIP Publishing LLC.
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundacao Araucaria-Parana
dc.descriptionUniv Estadual Maringa, Dept Fis, Grp Espect Fotoacust & Fototerm, BR-87020900 Maringa, Parana, Brazil
dc.descriptionUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil
dc.descriptionUniv Estadual Paulista Julio de Mesquita Filho UN, Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil
dc.format10
dc.languageeng
dc.publisherAmerican Institute of Physics (AIP)
dc.relationJournal of Applied Physics
dc.relation2.176
dc.relation0,739
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleNon-destructive thermal wave method applied to study thermal properties of fast setting time endodontic cement
dc.typeArtigo


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