| Hertwig's sheath |
root sheath (def. 1).
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| Hertwig's root sheath |
[Wilhelm August Oscar Hertwig, Ger. physiologist, 1849?1922] A downgrowth of epithelium from the cervical loop of the enamel organ that induces dentin formation of the forming tooth root and determines its shape. The epith
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