Effect of Fiber Laser Irradiation on the Shear Bond Strength between Acrylic Resin and Titanium

Figure 5

SEM images of titanium surfaces after shear bond testing (at ×8 magnification): (a) adhesive failure at metal/acrylic resin interface in a sandblasted specimen, (b) cohesive failure at the acrylic resin layer in a metal primer applied specimen, and (c) mixed failure in a fiber laser (20 W)+metal primer applied specimen.

(a)

(b)

(c)