Effects of coronal leakage on concentration of hydrogen ions and calcium hydroxide release of several calcium hydroxide pastes over different periods of time

dc.contributorFaculdade Redentor de Itaperuna
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal do Rio Grande do Sul (UFRGS)
dc.contributorUniversidade de São Paulo (USP)
dc.creatorCrespo, Mariana Pires
dc.creatorKuga, Milton Carlos [UNESP]
dc.creatorSó, Marcus Vinicius Reis
dc.creatorKeine, Katia Cristina [UNESP]
dc.creatorShinohara, André Luis
dc.date2015-08-06T16:13:17Z
dc.date2015-08-06T16:13:17Z
dc.date2013
dc.date.accessioned2023-09-12T05:48:25Z
dc.date.available2023-09-12T05:48:25Z
dc.identifierhttp://www.portaldeperiodicos.unisul.br/index.php/JR_Dentistry/article/view/1701
dc.identifierJournal of Research in Dentistry, v. 1, n. 3, p. 230-239, 2013.
dc.identifier2317-5907
dc.identifierhttp://hdl.handle.net/11449/125853
dc.identifierISSN2317-5907-2013-01-03-230-239.pdf
dc.identifier1627568419811788
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8775248
dc.descriptionPurpose: 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.
dc.descriptionUniversidade de São Paulo, Faculdade de Odontologia de Bauru
dc.descriptionUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara
dc.format230-239
dc.languageeng
dc.relationJournal of Research in Dentistry
dc.rightsAcesso aberto
dc.sourceCurrículo Lattes
dc.subjectCalcium
dc.subjectCamphorated parachlorophenol
dc.subjectChlorhexidine
dc.subjectHydrogen
dc.subjectScanning electron microscopy
dc.titleEffects of coronal leakage on concentration of hydrogen ions and calcium hydroxide release of several calcium hydroxide pastes over different periods of time
dc.typeArtigo


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