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dc.contributor.authorTanomaru-Filho, Mario-
dc.contributor.authorGarcia, André Cresto-
dc.contributor.authorBosso-Martelo, Roberta-
dc.contributor.authorBerbert, Fabio Luis Camargo-
dc.contributor.authorReis, José Maurício dos Santos Nunes-
dc.contributor.authorGuerreiro-Tanomaru, Juliane Maria-
dc.identifier.citationJournal of Conservative Dentistry, v. 18, n. 2, p. 105-108, 2015.-
dc.description.abstractContext: Calcium oxide (CaO) may be added to mineral trioxide aggregate (MTA) or Portland cement (PC) to improve physicochemical and biological properties. Aims: To evaluate the physicochemical properties of PC associated with radiopacifiers and CaO. Materials and Methods: MTA Angelus, PC + 30% zirconium oxide (Zr), or 30% niobium oxide (Nb) associated with 10 or 20% of CaO were evaluated. Gilmore needles were used to evaluate initial and final setting time. Compressive strength was evaluated after the periods of 24 hours and 21 days. pH was analyzed after 3, 12, 24 hours, 7, 14, 21 days. Solubility and flow tests were performed based on the ISO 6876. The data obtained were submitted to analysis of variance and Tukey tests (P ≤ 0.05). Results: The associations with 10% CaO showed greater strength that the associations with 20% CaO. The shortest initial setting time was observed for the association PC + Zr + 20% CaO and MTA. All the cements presented alkaline pH. The flow of all cements was similar. The highest solubility was found in the associations with 20% CaO. Conclusion: The addition of CaO to PC favored the alkaline property and the PC + Zr + 20% CaO presented setting time similar to MTA.en
dc.sourceCurrículo Lattes-
dc.subjectCalcium oxideen
dc.subjectmineral trioxide aggregateen
dc.subjectphysicochemical propertiesen
dc.subjectportland cementen
dc.titleInfluence of addition of calcium oxide on physicochemical properties of Portland cement with zirconium or niobium oxideen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Materiais Odontológicos e Prótese, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680/ Departamento de Materiais Odontológicos e Prótese, Centro, CEP 14801-903, SP, Brasil-
dc.description.affiliationUnespDepartment of Restorative Dentistry, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil-
dc.description.affiliationUnespDepartment of Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Conservative Dentistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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