Institutional Repository

Design and evaluation of alumina/feldspar resin infiltrated dental composite materials

DUT IR/Manakin Repository

Show simple item record

dc.contributor.advisor Lachman, Nirusha
dc.contributor.advisor Walker, Mark
dc.contributor.advisor Botha, C. Theo
dc.contributor.author Le Roux, Andre Rayne
dc.date.accessioned 2009-06-02T11:59:35Z
dc.date.available 2009-06-02T11:59:35Z
dc.date.issued 2008
dc.identifier.other 315106
dc.identifier.uri http://hdl.handle.net/10321/430
dc.description Submitted in fulfilment of the degree of Doctor of Dental Material Science in the Department of Dental Services, Faculty of Health Sciences, Durban University of Technology, Durban, South Africa, 2008. en
dc.description.abstract Introduction: Incorporating a feldspar chemical bond between alumina filler particles is expected to increase the wear resistant and flexural strength properties, while reducing flexibility of dental composites. Aims and Objectives: An investigation was carried out to evaluate the influence of the feldspar chemical bonding between alumina filler particles on wear, flexural strength and flexibility of experimental alumina/feldspar dental composites. It was hypothesized that wear resistance and flexural strength would be significantly increased with increased feldspar mass, while flexibility was expected to decrease. Methods: Alumina was chemically sintered and bonded with 30%, 40%, 50% and 60% feldspar mass, silanized and infiltrated with UDMA resin to prepare the dental restorative composite material specimens. Results and conclusions: Significantly higher wear resistant characteristics resulted with increased feldspar mass (p<0.5). Improvements in flexural strength characteristics as the feldspar mass was increased was not statistically different (p>0.5). Flexibility characteristics as the feldspar mass was increased was not statistically different (p>0.5). The alumina/feldspar specimens showed lower flexibility (mm displacement) than SR ADORO (p<0.05). Feldspar chemical bonding between the alumina particles may improve on the wear resistance and Flexibility of alumina/feldspar composites when compared to SR ADORO. This study evaluated the influence of a chemical feldspar bond between alumina filler particles. en
dc.format.extent 205 p en
dc.language.iso en en
dc.subject Composite materials en
dc.subject Dental bonding en
dc.subject Dental materials en
dc.title Design and evaluation of alumina/feldspar resin infiltrated dental composite materials en
dc.type Thesis en
dc.dut-rims.pubnum DUT-000260


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DUT IR


Browse

My Account