The Aspect of the Bands of Schreger in the Horizontal Sections of the Enamel

Abstract

The bands of Schreger correspond to a horizontal double curvature of the prisms in the inner 2/3 of the enamel in the lateral plates. This double curvature involves a complete ring of enamel. In different rings, the deviation is to the left or to the right, alternately. These enamel rings are not completely flat but rather are slightly conic. For that reason a horizontal section cuts through two or three of these bands, shown concentric rings with the alternate deviation to the right and to the left.