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Flashcards in Amelogenesis Deck (31):
1

Epithelial Enamel/Dental Organ consists of

Inner Enamel Epithelium
Outer Enamel Epithelium
Stellate Reticulum
Stratum Intermedium

2

DEJ is the area between ______ and ________

IEE
CT of Dental Papilla

3

_____ is necessary for enamel formation and secretes alkaline phosphatase

Stratum Intermedium

4

Stratum Intermedium is found between ______ and _________

IEE
Stellate Reticulum

5

Cells of Stellate Reticulum are connected via ______ to each other as well as to cells of

Desmosomes
OEE and Stratum Intermedium

6

The 6 stages of Ameloblast differentiation are

Morphogenic
Organizing
Formative
Maturation
Protective
Desmolytic

7

Blood vessels will begin to indent the ______ for future nourishment to ameloblasts

Outer Enamel Epithelium

8

______ will differentiate into ameloblasts

Inner Enamel Epithelium

9

The IEE contains large amounts of

Alkaline phosphatase and glycogen

10

Cells of the cervical loop will help to form

Hertwig's Epithelial Root Sheath

11

The ______ stage of Ameloblasts will help determine the shape of DEJ and crown via _____ and ______ cells

Morphogenic
IEE and Dental Papilla

12

The IEE is separated from the Dental Papilla by a ______ during the Morphogenic Stage of Ameloblasts

Basal Lamina

13

During the _______ stage of Ameloblasts the IEE will react with dental papilla cells, inducing formation of _________

Organizing
Odontoblasts

14

During the Organizing stage of Ameloblasts the shape of the cells will become

columnar

15

During the Organizing stage of Ameloblasts the cell free zone will now be occupied by

Columnar Odontoblasts

16

Predentin formation occurs in which stage of Ameloblasts

Organizing

17

As dentin formation continues it will increase vascular supply to _______ and interrupt vascular supply to _____

Stellate Reticulum
Ameloblasts

18

The reduced enamel epithelium is formed by

OEE
Stratum Intermedium
Stellate Reticululm
Ameloblasts

19

The _______ collapsing signals the formation of reduced enamel epithelium

Stellate Reticulum

20

Ameloblasts enter the ______ stage after the first layer of dentin has been formed

Formative

21

During _______ stage, ameloblasts develop blunt processes that penetrate the basal lamina and deposit ______

Formative
Inorganic cyrstals and enamel matrix proteins

22

After the first deposition of enamel, ameloblasts will pull away from ______ and form projections called _______

Dentin
Tomes' Processes

23

During ______ stage secretion of enamel will occur at tip of Tomes' Processes via _____ method

Formative
Merocrine

24

During the _______ stage, full mineralization will begin after enamel has been laid down on occlusal surface

Maturation

25

During the the Maturation stage the ameloblasts will become shorter and form ________ which replaces ______

ruffled border (microvilli)
Tomes' Processes

26

The ruffled border and smooth border of ameloblasts will alternate between ______ and _______

Absorption of Enamel Proteins
Secretion of Minerals

27

During the Maturation stage of Ameloblats rapid influx of ____ occurs to replace _______

Ca+ and P+ ions
Organic Matrix and H20

28

During the Protective stage microvilli are removed causing ameloblats to ______ between cell and enamel surface

Secrete thick Basal Lamina (Epithelial Attachement)

29

After completion of enamel formation and calcification ameloblasts resemble OEE and Stratum Intermedium, forming _______

Reduced Enamel Epithelium

30

The Reduced Enamel Epithelium functions to ______

Protect enamel from deposition of cementum

31

During the Desmolytic Stage ________

Reduced enamel epithelium proliferates and induces atrophy of CT, separating it from oral epithelium