Fig. 10.

Scanning electron microscopic (SEM) micrographs of fractured beams showing different failure pattern. A Adhesive failure in the restoration-cement interface with some cement remaining on the restoration surface B Adhesive failure in the cement-tooth interface with some cement remaining on the tooth surface C Cohesive failure in the restoration D Cohesive failure in the cement E Cohesive failure in the dentin F Mixed adhesive and cohesive in the restoration and cement G Mixed adhesive and cohesive in the cement and dentin