Radiographic effect of different radiopacifiers on a potential retrograde filling material

dc.contributor.authorBortoluzzi, Eduardo Antunes
dc.contributor.authorGuerreiro-Tanomaru, Juliane Maria [UNESP]
dc.contributor.authorTanomaru-Filho, Mario [UNESP]
dc.contributor.authorHungaro Duarte, Marco Antonio
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade do Sagrado Coração (USC)
dc.date.accessioned2014-05-20T13:47:02Z
dc.date.available2014-05-20T13:47:02Z
dc.date.issued2009-10-01
dc.description.abstractObjective. The objective of this study was to evaluate the radiopacity of white Portland cement (PC) associated with bismuth oxide (Bi(2)O(3)), barium sulfate (BaSO(4)), iodoform (CHI(3)), and zirconium oxide (ZrO(2)). White mineral trioxide aggregate (WMTA) and PC without radiopacifier were used as positive and negative controls, respectively.Study design. Following International Organization for Standardization (ISO) 6876/2001, 5 circular specimens (10 x 1 mm) were made from each material. After the materials set, radiographs were taken using occlusal film and a graduated aluminum step-wedge varying in thickness from 2 to 16 mm. The dental X-ray unit (GE1000) was set at 50 Kvp, 10 mA, 18 pulses/s, and distance of 33.5 cm. The radiographs were digitized, and radiopacity was compared with the aluminum step-wedge, using Wixwin-2000 software (Gendex). Data (mm Al) were analyzed using analysis of variance and Tukey tests.Results. The PC + Bi(2)O(3) and WMTA samples presented greater radiopacity (5.88 and 5.72 mm Al, respectively), followed by PC + ZrO(2) (3.87 mm Al) and PC + CHI(3) (3.50 mm Al). The PC + BaSO(4) and PC samples presented the lowest radiopacity values (2.35 and 1.69 mm Al, respectively), which were below the minimum value recommended by the ISO.Conclusion. Analysis of the present results led to the conclusion that all of the materials tested presented acceptable radiopacity, except PC + BaSO(4) and pure PC. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 108: 628-632)en
dc.description.affiliationUniversidade Federal de Santa Catarina (UFSC), Sch Dent, Florianopolis, SC, Brazil
dc.description.affiliationSão Paulo State Univ, Araraquara Dent Sch, Dept Restorat Dent, Araraquara, SP, Brazil
dc.description.affiliationUniv Sagrado Coracao, Dept Endodont, Bauru, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Araraquara Dent Sch, Dept Restorat Dent, Araraquara, SP, Brazil
dc.format.extent628-632
dc.identifierhttp://dx.doi.org/10.1016/j.tripleo.2009.04.044
dc.identifier.citationOral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology. New York: Mosby-elsevier, v. 108, n. 4, p. 628-632, 2009.
dc.identifier.doi10.1016/j.tripleo.2009.04.044
dc.identifier.issn1079-2104
dc.identifier.urihttp://hdl.handle.net/11449/16694
dc.identifier.wosWOS:000270084800026
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.titleRadiographic effect of different radiopacifiers on a potential retrograde filling materialen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderMosby-elsevier
unesp.author.orcid0000-0003-0446-2037[2]
unesp.author.orcid0000-0003-3051-737X[4]
unesp.author.orcid0000-0002-2574-4706[3]
unesp.author.orcid0000-0003-4426-9143[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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