GC EUROPE Unifil Bond - Manual (Page 6)

GC UniFil Bond Technical manual version 1.10, November 2005, 6/23
Silica
Colloidal silica is added to control the flow of the bonding agent. This will ensure that
the operator has a better control during the application.
In addition to this practical advantage, a slight increase in the modulus of elasticity
could be obtained – 2.8 (0.1) GPa with silica, versus 2.6 (0.1) GPa without.
4.0 Application
• Self – etching primer
Apply GC UniFil Bond self-etching primer to the dentine and enamel surfaces and
leave undisturbed for 20 seconds. Then gently dry with an air syringe for 5 seconds
and ensure that the primed surface has a glossy appearance. Do not rinse with
water.
• Bonding agent
GC UniFil Bond bonding agent is immediately applied to the primed enamel and
dentine surfaces. Then gently dry with an air syringe to form a thin film and light
cure for 10 seconds. GC GRADIA DIRECT composite can now be applied to the
treated surface.