FRACTAL ANALYSIS OF SOME RESTORATIVE NANO-FILLED COMPOSITE MATERIALS
MICROSTRUCTURE
a)
b)
c)
d)
Figure 3 Typical fractal analysis of Filtek Ultimate nanofilled composites: a) microscopic image; b) binary
conversion, c) regions of similar fractal dimension as given by the colour codes (d)
The results of filler loading and filler size evaluation
were presented in Table 2. The results showed
almost the same filler loading for Filtek Ultimate
and Filtek Supreme XT, i.e. about 59 volume %,
the values being in keeping with the producer
specifications. We noted a slightly higher percent
of zirconia particles in the case of Filtek Ultimate
STOMA.EDUJ (2015) 2 (1)
than for Filtek Supreme XT (for more details see
(12).
Examples of microscopic images converted in
binary format are presented in figures. 3a, b for
Filtek Ultimate. The results of FracLac in Image
J evaluation of these samples are presented in
Figure 3c-d. In Figure. 3b the regions with similar
33