Long-Term Bond Strength of Two Benzalkonium Chloride-Modified Adhesive Systems to Eroded Dentin

Figure 3

Representative scanning electron micrographs of the three failure modes observed: (a) cohesive failure in dentin, (b) adhesive failure at dentin/adhesive interface, and (c) mixed failure (combination of cohesive failure in dentin and adhesive failure at dentin/adhesive interface with remnants of adhesive system/resin composite).

(a)

(b)

(c)