Effect of Hydroxyapatite Coating in Combination with Physical Modifications on Microshear Bond Strength of Zirconia to Resin Cement

Figure 2

Al₂O₃ particle abraded group (group 1). (a) Adhesive failure mode. (b) Mixed failure mode. (c) Sandblast + HA coating group (group 3). (d) HA coated group (group 2) Er, Cr: YSGG + HA-coating group (group 4). (e) Mixed failure mode. (f) Cohesive failure mode.

(a)

(b)

(c)

(d)

(e)

(f)