# Interrod enamel

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**Interrod enamel** is [histologically](/source/Histology) identified on microscopic views of [tooth enamel](/source/Tooth_enamel). Because interrod enamel is located around [enamel rods](/source/Enamel_rod), the areas of interrod enamel enhances the "keyhole" appearance of enamel rods by acting as its border. The location where the two areas of enamel meet is known as the [rod sheath](/source/Rod_sheath).

All tooth enamel, including interrod enamel and enamel rods, is made by [ameloblasts](/source/Ameloblast). However, interrod enamel is formed slightly sooner than enamel rods.

Interrod enamel has the same composition as enamel rods. A distinction is made between the two because they differ in the direction of their crystalline patterns.

## References

- Cate, A.R. Ten. Oral Histology: development, structure, and function. 5th ed. 1998. ISBN 0-8151-2952-1.

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Adapted from the Wikipedia article [Interrod enamel](https://en.wikipedia.org/wiki/Interrod_enamel) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Interrod_enamel?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.