Three body wear studies of five dental composites preconditioned in food simulating media
Titel:
Three body wear studies of five dental composites preconditioned in food simulating media
Auteur:
L.H. Mair V. Kalliyana Krishnan
Verschenen in:
Bio-medical materials and engineering
Paginering:
Jaargang 9 (2001) nr. 3 pagina's 145-149
Jaar:
2001-04-01
Inhoud:
Progressive three body wear up to 30 min for five dental composites (Concise, Heliomolar, Occlusin, P-30, Profile, TPH) stored for 9 months at 37^{\circ}C in citrate, lactate and PBS buffers, 25 and 75% ethanol media, has been measured using a wear tester. Particle size of the filler and the storage media are found to play dominant roles in determining the extent of wear. Heliomolar, which is a microfilled composite, shows maximum wear whereas wear is least in composites containing filler particles of conventional and hybrid size such as P-30 ({>} 1\mum). The storage media is found to attack and degrade glass filler particles compared to composites having quartz fillers.
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