Effect Of Salivary Contamination At Different Steps Of The Bonding Process On The Microleakage Around Class V Restorations

dc.creatorRosa C.B.
dc.creatorCavalcanti A.N.
dc.creatorFontes C.M.
dc.creatorMathias P.
dc.date2007
dc.date2015-06-30T18:52:18Z
dc.date2015-11-26T14:39:06Z
dc.date2015-06-30T18:52:18Z
dc.date2015-11-26T14:39:06Z
dc.date.accessioned2018-03-28T21:44:34Z
dc.date.available2018-03-28T21:44:34Z
dc.identifier
dc.identifierBrazilian Journal Of Oral Sciences. , v. 6, n. 23, p. 1445 - 1449, 2007.
dc.identifier16773217
dc.identifier
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-41749123930&partnerID=40&md5=a65479842731b85023cf96538bf512fe
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/105170
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/105170
dc.identifier2-s2.0-41749123930
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1249858
dc.descriptionThis study aimed to investigate the influence of the moment of salivary contamination during the bonding procedure (before or after acid conditioning) on the microleakage around composite resin restorations. Sixty bovine incisors received two Class V preparations (one with dentin margins and other with enamel margins). Teeth were randomly assigned into three, groups (n-20): 1) control (not contaminated); 2) salivary contamination before etching with 34% phosphoric acid; and, 3) salivary contamination after acid etching. Cavities were restored using Prime & Bond NT (Dentsply) adhesive system and TPH Spectrum (Dentsply) composite according to manufacturer instructions. Teeth were thermocycled (500x, 5-55°C, 60s/bath), immersed in 2% methylenee blue buffered solution (pH 7.0), and sectioned into two halves. Three examiners measured the extent of dye penetration or dentin and enamel margins in a stereoscope microscope, using four representative scores. Statistical analysis were performed with Kruskal-Wallis/Wilcoxon tests (α-5%). The results showed that enamel and dentin margins did not present significant differences (p>0.05). However, significantly higher dye penetration was observed on substrates etched and further contaminated with saliva. It was concluded that salivary contamination after acid etching increases the microleakage around composite resin restorations, especially at dentin margins. However, acid etching subsequent to the contamination can avoid negative effects on restorations margins.
dc.description6
dc.description23
dc.description1445
dc.description1449
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dc.languageen
dc.publisher
dc.relationBrazilian Journal of Oral Sciences
dc.rightsaberto
dc.sourceScopus
dc.titleEffect Of Salivary Contamination At Different Steps Of The Bonding Process On The Microleakage Around Class V Restorations
dc.typeArtículos de revistas


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