Fig. 2From: Effect of N-Acetylcysteine on initial Carious Enamel Lesions in primary teeth: an In-vitro studyA&B SEM photographs showed sound enamel with a smooth surface and normally arranged enamel rods with inter-rod material producing a keyhole appearance. Small pits and cracks are found. (Magnification 2000X, 6000X respectively)Back to article page