Research Article

Assessment the Bond Strength of Ceramic Brackets to CAD/CAM Nanoceramic Composite and Interpenetrating Network Composite after Different Surface Treatments

Figure 2

Scanning electron microscope images of examples to Adhesive Remnant Index scores in the present study: 0, no adhesive left on the CAD/CAM specimens (LU = 5, VE = 10); 1, less than half of the adhesive remaining adhered to CAD/CAM specimens (LU = 46, VE = 43); 2, more than half of the adhesive left on the CAD/CAM specimens (LU = 9, VE = 7).