Influence of thermal stress on marginal integrity of restorative materials

dc.creatorCenci, MS
dc.creatorPereira-Cenci, T
dc.creatorDonassollo, TA
dc.creatorSommer, L
dc.creatorStrapasson, A
dc.creatorDemarco, FF
dc.date2008
dc.dateMAR-APR
dc.date2014-11-15T23:48:55Z
dc.date2015-11-26T17:36:00Z
dc.date2014-11-15T23:48:55Z
dc.date2015-11-26T17:36:00Z
dc.date.accessioned2018-03-29T00:18:30Z
dc.date.available2018-03-29T00:18:30Z
dc.identifierJournal Of Applied Oral Science. Univ Sao Paulo Fac Odontologia Bauru, v. 16, n. 2, n. 106, n. 110, 2008.
dc.identifier1678-7757
dc.identifierWOS:000256795700005
dc.identifier10.1590/S1678-77572008000200005
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80474
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/80474
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80474
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1285804
dc.descriptionThe aim of this study was to evaluate the influence of thermal stress on the marginal integrity of restorative materials with different adhesive and thermal properties. Three hundred and sixty Class V cavities were prepared in buccal and lingual surfaces of 180 bovine incisors. Cervical and incisal walls were located in dentin and enamel, respectively. Specimens were restored with resin composite (RC); glass ionomer (GI) or amalgam (AM), and randomly assigned to 18 groups (n=20) according to the material, number of cycles (500 or 1,000 cycles) and dwell time (30 s or 60 s). Dry and wet specimens served as controls Specimens were immersed in 1% basic fuchsine solution (24 h), sectioned, and microleakage was evaluated under x40 magnification. Data were analyzed by Kruskal-Wallis and Mann-Whitney tests: Thermal cycling regimens increased leakage in all AM restorations (p<0.05) and its effect on RC and GI restorations was only significant when a 60-s dwell time was used (p<0.05). Marginal integrity was more affected in AM restorations under thermal cycling stress, whereas RC and GI ionomer restoration margins were only significantly affected only under longer dwell times.
dc.description16
dc.description2
dc.description106
dc.description110
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.subjectthermal cycling
dc.subjectmicroleakage
dc.subjectcomposite resins
dc.subjectglass ionomer cements
dc.subjectamalgam
dc.subjectdental materials, properties
dc.subjectSandwich Restorations
dc.subjectDental Restorations
dc.subjectIn-vitro
dc.subjectClass-v
dc.subjectMicroleakage
dc.subjectComposite
dc.subjectPerformance
dc.subjectNanoleakage
dc.subjectRegimens
dc.subjectSystems
dc.titleInfluence of thermal stress on marginal integrity of restorative materials
dc.typeArtículos de revistas


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