GC EUROPE G-aenial Bond - Manual (Page 23)

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#180 #320 #600
Shear bond strength (MPa)
G-ænial Bond Technical Manual
7.2.4 influence of surface roughness on bond strength to dentine
Shear bond strength to dentine
Tests performed by GC R&D, Japan
the following test was performed in order to assess the potential influence of surface roughness in
bur cut dentine on shear bond strength.
Test set-up: Bovine teeth were embedded in acrylic resin (unifast iii) and the exposed enamel and dentine surfaces were
polished with #180, 320 and 600 grit Sic paper respectively. G-ænial Bond was applied on the surface of the samples. after 10
seconds, the samples were dried thoroughly and light-cured for 5 seconds using a GC G-Light. Clearfil AP-X (Kuraray) was
placed on the surface using Ultradent mold (D=2.38mm) and light-cured for 20 seconds. The bonding specimens (n=5) were
stored in water at 37°C for 24 hours. Shear bond strength (SBS) was measured at a cross-head speed of 1 mm/min. The
statistical analysis was conducted using the tukey test (P<0.05).
Figure 19: influence of surface roughness on shear bond strength to dentine. Source: Gc corporation, Japan, 2009
the shear bond strength of G-ænial Bond to dentine was not affected by surface roughness.
G-ænial Bond is able to offer consistent results independent of the bur type used for dentine
preparation.
influence of surface roughness on shear bond strength to dentine