Wear and flexural strength comparisons of alumina/feldspar resin infiltrated dental composites.

A. R. Le Roux, N. Lachman, M. Walker, T. Botha

Research output: Contribution to journalArticlepeer-review


INTRODUCTION: Incorporating a feldspar chemical bond between alumina filler particles is expected to increase the wear-resistant and flexural strength properties. AIMS AND OBJECTIVES: An investigation was carried out to evaluate the influence of the feldspar chemical bonding between alumina filler particles on wear and flexural strength of experimental alumina/feldspar dental composites. It was hypothesized that wear resistance and flexural strength would be significantly increased with increased feldspar mass. METHODS: Alumina was chemically sintered and bonded with 30% and 60% feldspar mass, silanized and infiltrated with UDMA resin to prepare the dental restorative composite material. RESULTS AND CONCLUSIONS: Higher wear-resistant characteristics resulted with increased feldspar mass of up to 60% (p < 0.05). Higher flexural strength characteristics resulted as the feldspar mass was increased up to 60% (p > 0.05). Feldspar chemical bonding between the alumina particles may improve on the wear-resistance and flexural strength of alumina/feldspar composites.

Original languageEnglish (US)
Pages (from-to)544, 546-549
JournalSADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging
Issue number10
StatePublished - Nov 2008

ASJC Scopus subject areas

  • Medicine(all)


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