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dc.contributor.advisorLachman, Nirusha
dc.contributor.authorLe Roux, Andre Rayne
dc.date.accessioned2011-01-21T08:02:39Z
dc.date.available2011-01-21T08:02:39Z
dc.date.issued2010
dc.identifier.urihttp://hdl.handle.net/10321/566
dc.descriptionOriginally published in: South African dental journal, Vol. 65, No. 2, 2010.en_US
dc.description.abstractIntroduction: Flexure of a dental composite can be detrimental to the success of a restoration. Flexibility considerations are thus important when comparing dental materials to optimize the success of resin restorations. Aims and objectives: Flexibility of 5.6 x 18.0 x 2.0 mm3 experimental alumina/feldspar and SR ADORO® dental composites specimens were compared. It was hypothesized that alumina/ feldspar composites would be less flexible under a load than SR ADORO® composites and that the flexibility would decrease significantly as the feldspar content was increased. Methods: Alumina was chemically sintered or bonded with 40%, 50% and 60% feldspar mass, silanized and infiltrated with urethane dimethacrylate (UDMA) to prepare the alumina/feldspar dental restorative composite specimens. Three point bending tests were performed in the Instron 44® machine for flexural comparison to SR ADORO®. Results and conclusions: The alumina/feldspar specimens showed lower flexibility (mm displacement) than SR ADORO® (p<0.05). Accurate flexibility comparisons were performed with 5.6 x 18.0 x 2.0 mm3 specimens. Flexibility comparisons performed with 5.6 x 18.0 x 2.0 mm3 specimens indicated that experimental alumina/ feldspar dental composites may provide added marginal seal benefit. However confirmation via in vivo function of alumina/ feldspar dental composites is recommended.en_US
dc.format.extent68 - 74 (4 p.)en_US
dc.language.isoenen_US
dc.publisherSouth African Dental Associationen_US
dc.subjectDentistryen_US
dc.subjectAlumina/Feldsparen_US
dc.subjectSR ADORO®en_US
dc.subjectDental compositesen_US
dc.titleFlexibility of experimental alumina/feldspar and SR ADORO dental compositesen_US
dc.typeArticleen_US


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