dc.creator | Milutinović Nikolić, Aleksandra | |
dc.creator | Medić, Vesna | |
dc.creator | Vuković, Zorica | |
dc.date.accessioned | 2020-04-02T16:22:04Z | |
dc.date.available | 2020-04-02T16:22:04Z | |
dc.date.issued | 2007 | |
dc.identifier.issn | 0109-5641 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/3451 | |
dc.description.abstract | Objective. 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. | en |
dc.language.iso | en | sr |
dc.publisher | Elsevier | sr |
dc.relation | Ministry of Science & Environmental Protection of the Republic of Serbia | sr |
dc.rights | restrictedAccess | sr |
dc.source | Dental materials | sr |
dc.subject | Open porosity | sr |
dc.subject | Zinc phosphate | sr |
dc.subject | Glass–ionomer | sr |
dc.subject | Polycarboxylate | sr |
dc.subject | Composite dental cements | sr |
dc.title | Porosity of different dental luting cements | en |
dc.type | article | sr |
dc.rights.license | ARR | sr |
dcterms.abstract | Милутиновић-Николић, Aлександра; Вуковић, Зорица; Медић, Весна; | |
dc.rights.holder | Academy of Dental Materials | sr |
dc.citation.volume | 23 | |
dc.citation.spage | 674 | |
dc.citation.epage | 678 | |
dc.citation.rank | aM21 | |
dc.identifier.pmid | 16860859 | |
dc.identifier.doi | 10.1016/j.dental.2006.06.006 | |
dc.identifier.scopus | 2-s2.0-34247241502 | |
dc.identifier.wos | 000246632600003 | |
dc.type.version | publishedVersion | sr |