Bam. Venhoven et al., INFLUENCE OF FILLER PARAMETERS ON THE MECHANICAL COHERENCE OF DENTAL RESTORATIVE RESIN COMPOSITES, Biomaterials, 17(7), 1996, pp. 735-740
Next to the presence of (chemical) coupling between filler and resin,
filler particle size is important for the mechanical coherence of dent
al resin composites which are used for posterior restorations. In the
range of the current composites a smaller particle size is desirable.
The better mechanical coherence for composites with smaller particles
found in an in vitro erosive wear test is probably related to the size
of food fibres, which are part of the erosive medium. It appears that
there is a critical value of the filler particle size (1.3-1.5 mu m),
under which the food fibres are not able to penetrate in the interpar
ticle space, so the erosive capability of the erosive medium will be r
educed.