DEH 103: Histology & Embryology
Chapters 7 & 8: Enamel and Dentin
Chapters 7 & 8: Enamel and Dentin
Kartei Details
Karten | 44 |
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Sprache | English |
Kategorie | Medizin |
Stufe | Universität |
Erstellt / Aktualisiert | 04.01.2014 / 28.12.2021 |
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Enamel is the hardest mineralized surface in the body becasue it is ___% mineralized.
96
The 96% inoragnic mineral consists of? The 4% organic matrix and water consits of?
- Hydroxyapatite: calcium phosphate
- Protein enamelin
What is the range of thickeness of enamel?
- 2.5 mm
Enamel is formed by ___ rods that extend from the surface to the DEJ.
- 4 rods:
- 1 Head
- 2 Neck
- 1 Tail
When enamel rods are interwined at the cusp tip.
Gnarled enamel
These are alternating light and dark bands that extend perpendicular from the DEJ.
Hunter-Schreger bands
These are narrow brownish lines that enxtend diagonally outward from the DEJ toward teh occlusla/incisal part of the crown.
Incremental lines of Retzius (Striae of Retzius) (growth lines)
This is a noteable line of Rezius that is formed at birth. It is due to environmental and nutrition changes.
Neonatal line