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Figure 1: Extracted incisor crowns were sectioned as per markings shown in the figure to obtain 6 enamel slabs (approximately 3.5 × 2.5 mm 2 in dimension) from each central incisor

Figure 1: Extracted incisor crowns were sectioned as per markings shown in the figure to obtain 6 enamel slabs (approximately 3.5 × 2.5 mm 2 in dimension) from each central incisor