GC EUROPE G-aenial Bond - Manual (Page 27)

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#180 #320 #600
Shear bond strength (MPa)
G-ænial Bond Technical Manual
7.3.3 influence of surface roughness on bond strength to enamel
Shear bond strength to enamel
Tests performed by GC R&D, Japan
the test described below was conducted to assess the influence of bur cut-induced surface
roughness 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 then applied on the surface. after 10 seconds,
the samples were dried thoroughly and light-cured for 5 seconds using a GC G-Light. Clearfil AP-X (Kuraray) was then placed
on the surface using an Ultradent mould (D=2.38mm) and light-cured for 20 sec. 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 23: influence of surface roughness on shear bond strength to enamel. Source: Gc corporation, Japan, 2009
the shear bond strength of G-ænial Bond to enamel was not affected by surface roughness. Since
G-ænial Bond is indicated for use on etched enamel and enamel that has only been bur cut, this
novel adhesive is able to offer consistent results independent of the bur type used for enamel
preparation.
influence of surface roughness on shear bond strength to enamel