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dc.contributor.authorCrespo, Mariana Pires-
dc.contributor.authorKuga, Milton Carlos-
dc.contributor.authorSó, Marcus Vinicius Reis-
dc.contributor.authorKeine, Katia Cristina-
dc.contributor.authorShinohara, André Luis-
dc.identifier.citationJournal of Research in Dentistry, v. 1, n. 3, p. 230-239, 2013.-
dc.description.abstractPurpose: To evaluate the effects of coronal leakage on concentration of hydrogen ions (pH) and calcium release of several calcium hydroxide pastes, over different periods of time. Material and Methods: Fifty extracted human mandibular central incisors (n=10) were instrumented up to the F2 instrument and assigned to the following intracanal dressing: G1- Calen, G2- Calen with 0.4% chlorhexidine (CHX), G3- Calcium hydroxide with camphorated paramonochlorophenol (CPMC) and glycerin, G4- Calen, but temporary filling material maintained during all test (positive control) and G5- Root canal without intracanal dressing (negative control). All groups were immersed in distilled water for 7 days. In sequence, the temporary filling materials were removed, except in controls groups. All specimens were individually mounted on a specific device and only its root again immersed in distilled water. Concentration of hydrogen ions and calcium release by calcium hydroxide pastes in distilled water were evaluated in 24h, 7, 14 and 28 days. The results were submitted to ANOVA test (p = 0.05). After 28 days, root canals from experimental groups were examined in SEM. Results: G1, G2, G3 and G4 presented similar pH values and calcium release and did not differ from each other (p>0.05), up to 7 days. After this time G1, G2 and G3 presented values lower values than G4 (p<0.05). In SEM analysis, calcium hydroxide residues were observed in all experimental groups. Conclusions: After 7 days, coronal leakage decreased the concentration of hydrogen ions and calcium ion release provided by all calcium hydroxide pastes.en
dc.sourceCurrículo Lattes-
dc.subjectCamphorated parachlorophenolen
dc.subjectScanning electron microscopyen
dc.titleEffects of coronal leakage on concentration of hydrogen ions and calcium hydroxide release of several calcium hydroxide pastes over different periods of timeen
dc.contributor.institutionFaculdade Redentor de Itaperuna-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul (UFRGS)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.description.affiliationUniversidade de São Paulo, Faculdade de Odontologia de Bauru-
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofJournal of Research in Dentistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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