Effect of Different Surface Treatments on the Micro-Shear Bond Strength and Surface Characteristics of Zirconia: An In Vitro Study

Figure 4

SEM images obtained from each experimental group (Original magnification 1000x). (a) Group OC, (b) Group OA, (c) Group OE, and (d) Group OAE.

(a)

(b)

(c)

(d)