Enamel Incremental Periodicity (IMAGE)

New York University

Enamel Incremental Periodicity

Caption

Top: Daily (circadian) growth lines, or cross-striations (short arrows) are observed between adjacent long-period (multidien) striae of Retzius (long arrows) (distance between the adjacent striae of Retzius shown = 30 μm). Bottom: Striae of Retzius may be seen to course across the horizontal field of view (FW = 450 μm). The number of cross-striations between adjacent striae of Retzius is termed the "repeat period" (RP).

Credit

Dr. Timothy Bromage

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