4 gloss rate – GC EUROPE G-aenial User Manual
Page 20

20
0
50
100
150
200
250
Filtek Supreme XTE
Filtek Z250
Tetric EvoCeram
Venus
CeramX Mono
G-ænial P
G-ænial A
0
20
40
60
80
100
Filtek Z250
Tetric EvoCeram
Clearfil Majesty
Venus
CeramX Mono
G-ænial Posterior
G-ænial Anterior
pre-shine
dia-shine
dia-polisher-paste
Estelite ∑ Quick
G-ænial Anterior & Posterior Technical Manual
to measure three-body wear resistance, composite specimens were prepared and moved up and
down along a 5 cm path at a rate of 30 strokes per minute. they were held in indirect contact with
an acrylic plate under a load of 350 gf load and, simultaneously, the sample holder slid horizontally
along a 2 cm path at a rate of 30 strokes per minute. a mixture of Pmma and glycerol (1:1 vol%)
was used as an intermediate abrasive. after 100,000 cycles (with one complete lateral and vertical
movement being defined as one cycle), the material wear was measured by evaluating by
measuring height loss.
Figure 31: three-body wear of various composites Source: Gc corporation
Based on this test, it can be
concluded that:
1 G-ænial has similar wear to
nanohybrid composites such
as esthetX or Venus.
2 the wear of G-ænial is
significantly less than the wear
of the nanohybrid composite
ceramX.
6.4 Gloss rate
Test Set-up
Samples of materials with a 15mm diameter and 1.5mm thickness were prepared.
the surface was first polished with 600 grit paper and then finished for 2 minutes with a silicone
point (Pre Shine, Gc). the surface gloss rate was then measured for the first time with a VG-2000,
nippon Denshoku.
the surface was then polished for 2 minutes with a diamond silicone point (Dia-Shine, Gc) and the
surface gloss rate measured for the second time.
lastly, the surface was polished for 2 minutes with a Diamond polishing paste with buff for polishing
and super-polishing (Dia Polisher Paste, Gc). the surface gloss rate was then measured for the third
time.
Figure 32: Gloss rate of various composites Source: Gc corporation
Based on this test, it can be
concluded that the gloss rate
of G-ænial is similar to that of
the other tested composites.
3 Body wear (µm)
Gloss rate (%)