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dc.creatorMilutinović Nikolić, Aleksandra
dc.creatorMedić, Vesna
dc.creatorVuković, Zorica
dc.date.accessioned2020-04-02T16:22:04Z
dc.date.available2020-04-02T16:22:04Z
dc.date.issued2007
dc.identifier.issn0109-5641
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3451
dc.description.abstractObjective. The aim of this in vitro study was to compare open porosity and pore size distribution of different types of luting cements (zinc phosphate and polycarboxylate produced by Harvard Cement, Great Britain, glass–ionomer product GC Fuji I, GC Corporation, Japan, and Panavia F, resin based composite cement, Kurraray Co. Ltd. Japan) using mercury intrusion porosimetry and use it as an additional parameter for ranging the quality of cements used in prosthetics. Method. Samples were hand mixed in accordance with the manufacturer’s instructions and formed in cylindrical test specimens. Density of samples was determined using a pycnometer while porous structure was estimated using high pressure mercury intrusion porosimeter enabling estimation of pore diameters in interval 7.5–15,000 nm. Results. The polycarboxylate cement posses the highest porosity and specific pore volume among investigated cements. By comparison of the results obtained for zinc phosphate and glass–ionomer cement, it can be observed that according to some textural properties zinc phosphate cement is better choice (smaller specific pore volume and absence of macropores larger than 1 micrometer) while according to other textural properties the glass–ionomer has advantage (smaller porosity). The resin based composite cement poses the most desired porous structure for prosthetic application among the investigated cements (the lowest porosity and specific pore volume and all identified pores are smaller than 20 nm). Significance. Based on results of this study, it is possible to estimate the efficiency of luting cements to protect the interior of tooth frompenetration of oral fluids, bacteria and bacterial toxins into unprotected dentine.sr
dc.language.isoensr
dc.publisherElseviersr
dc.relationMinistry of Science & Environmental Protection of the Republic of Serbiasr
dc.rightsrestrictedAccesssr
dc.sourceDental materialssr
dc.subjectOpen porositysr
dc.subjectZinc phosphatesr
dc.subjectGlass–ionomersr
dc.subjectPolycarboxylatesr
dc.subjectComposite dental cementssr
dc.titlePorosity of different dental luting cementssr
dc.typearticlesr
dc.rights.licenseARRsr
dcterms.abstractМилутиновић-Николић, Aлександра; Вуковић, Зорица; Медић, Весна;
dc.rights.holderAcademy of Dental Materialssr
dc.citation.volume23
dc.citation.spage674
dc.citation.epage678
dc.citation.rankaM21
dc.identifier.pmid16860859
dc.identifier.doi10.1016/j.dental.2006.06.006
dc.identifier.scopus2-s2.0-34247241502
dc.identifier.wos000246632600003
dc.type.versionpublishedVersionsr


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