Correlation between margin fit and microleakage in complete crowns cemented with three luting agents

dc.creatorRossetti, PHO
dc.creatordo Valle, AL
dc.creatorde Carvalho, RM
dc.creatorDe Goes, MF
dc.creatorPegoraro, LF
dc.date2008
dc.dateJAN-FEB
dc.date2014-11-16T11:42:21Z
dc.date2015-11-26T17:24:48Z
dc.date2014-11-16T11:42:21Z
dc.date2015-11-26T17:24:48Z
dc.date.accessioned2018-03-29T00:12:05Z
dc.date.available2018-03-29T00:12:05Z
dc.identifierJournal Of Applied Oral Science. Univ Sao Paulo Fac Odontologia Bauru, v. 16, n. 1, n. 64, n. 69, 2008.
dc.identifier1678-7757
dc.identifierWOS:000256795300012
dc.identifier10.1590/S1678-77572008000100013
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/57263
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/57263
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/57263
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1284170
dc.descriptionMicroleakage can be related to margin misfit. Also, traditional microleakage techniques are time-consuming. This study evaluated the existence of correlation between in vitro margin fit and a new microleakage technique for complete crowns cemented with 3 different luting agents. Thirty human premolars were prepared for full-coverage crowns with a convergence angle of 6 degrees, chamfer margin of 1.2 mm circumferentially, and occlusal reduction of 1.5 mm. Ni-Cr cast crowns were cemented with either zinc phosphate (ZP) (S.S. White), resin-modified glass-ionomer (RMGI) (Rely X Luting Cement) or a resin-based luting agent (RC) (Enforce). Margin fit (seating discrepancy and margin gap) was evaluated according to criteria in the literature under microscope with 0.001 mm accuracy. After thermal cycling, crowns were longitudinally sectioned and microleakage scores at tooth-cement interface were obtained and recorded at x100 magnification. Margin fit parameters were compared with the one-way ANOVA test and microleakage scores with Kruskal-Wallis and Dunn's tests (alpha=0.05). Correlation between margin fit and microleakage was analyzed with the Spearman's test (alpha=0.05). Seating discrepancy and marginal gap values ranged from 81.82 mu m to 137.22 mu m (p=0.117), and from 75.42 mu m to 78.49 mu m (p=0.940), respectively. Marginal microleakage scores were ZP=3.02, RMGI=0.35 and RC=0.12 (p < 0.001), with no differences between RMGI and RC scores. The correlation coefficient values ranged from -0.27 to 0.30 (p > 0.05). Conclusion: Margin fit parameters and microleakage showed no strong correlations; cast crowns cemented with RMGI and RC had lower microleakage scores than ZP cement.
dc.description16
dc.description1
dc.description64
dc.description69
dc.languageen
dc.publisherUniv Sao Paulo Fac Odontologia Bauru
dc.publisherBauru-sp
dc.publisherBrasil
dc.relationJournal Of Applied Oral Science
dc.relationJ. Appl. Oral Sci.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectdental leakage
dc.subjectdental cements
dc.subjectmarginal adaptation
dc.subjectcrowns
dc.subjectFull Cast Crowns
dc.subjectFilm Thickness
dc.subjectRestorations
dc.subjectAdaptation
dc.subjectLeakage
dc.subjectGap
dc.titleCorrelation between margin fit and microleakage in complete crowns cemented with three luting agents
dc.typeArtículos de revistas


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