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SEM micrographs of the samples: (a) Sample 1-the microcomposite, seen in the middle of the section area; (b) Sample 1-the side facing the curing lamp; (c) Sample 1-the side opposite to the curing lamp; (d) Sample 2-the nanocomposite, in the middle of the section area; (e) Sample 2-the side facing the curing lamp; (f) Sample 2-the side opposite to the curing lamp.
