Fig. 4From: The effect of repair protocols and chewing simulation on the microtensile bond strength of two resin matrix ceramics to composite resinshows the SEM images at 1000x of (a) VE without surface treatment (b) VE with bur grinding (c) VE with HF acid etching (d) LU without surface treatment (e) LU with bur grinding (f) LU with HF acid etchingBack to article page