The Effect of Energy Densities on the Shear Bond Strength of Self-Adhering Flowable Composite to Er:YAG Pretreated Dentin

Figure 4

SEM observation after irradiation with Er:YAG and before bonding self-adhering flowable resin composite, respectively, with (a) 50 mJ, (b) 60 mJ, (c) 80 mJ, and (d) 100 mJ.

(a)

(b)

(c)

(d)