Amelogenesis

Question 1

Epithelial Enamel/Dental Organ consists of

Answer 1

Inner Enamel Epithelium
Outer Enamel Epithelium
Stellate Reticulum
Stratum Intermedium

Question 2

DEJ is the area between ______ and ________

Answer 2

IEE

CT of Dental Papilla

Question 3

_____ is necessary for enamel formation and secretes alkaline phosphatase

Answer 3

Stratum Intermedium

Question 4

Stratum Intermedium is found between ______ and _________

Answer 4

IEE

Stellate Reticulum

Question 5

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

Answer 5

Desmosomes

OEE and Stratum Intermedium

Question 6

The 6 stages of Ameloblast differentiation are

Answer 6

Morphogenic
Organizing
Formative
Maturation
Protective
Desmolytic

Question 7

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

Answer 7

Outer Enamel Epithelium

Question 8

______ will differentiate into ameloblasts

Answer 8

Inner Enamel Epithelium

Question 9

The IEE contains large amounts of

Answer 9

Alkaline phosphatase and glycogen

Question 10

Cells of the cervical loop will help to form

Answer 10

Hertwig’s Epithelial Root Sheath

Question 11

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

Answer 11

Morphogenic

IEE and Dental Papilla

Question 12

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

Answer 12

Basal Lamina

Question 13

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

Answer 13

Organizing

Odontoblasts

Question 14

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

Answer 14

columnar

Question 15

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

Answer 15

Columnar Odontoblasts

Question 16

Predentin formation occurs in which stage of Ameloblasts

Answer 16

Organizing

Question 17

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

Answer 17

Stellate Reticulum

Ameloblasts

Question 18

The reduced enamel epithelium is formed by

Answer 18

OEE
Stratum Intermedium
Stellate Reticululm
Ameloblasts

Question 19

The _______ collapsing signals the formation of reduced enamel epithelium

Answer 19

Stellate Reticulum

Question 20

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

Answer 20

Formative

Question 21

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

Answer 21

Formative

Inorganic cyrstals and enamel matrix proteins

Question 22

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

Answer 22

Dentin

Tomes’ Processes

Question 23

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

Answer 23

Formative

Merocrine

Question 24

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

Answer 24

Maturation

Question 25

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

Answer 25

``` ruffled border (microvilli) Tomes' Processes ```

Question 26

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

Answer 26

Absorption of Enamel Proteins | Secretion of Minerals

Question 27

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

Answer 27

Ca+ and P+ ions | Organic Matrix and H20

Question 28

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

Answer 28

Secrete thick Basal Lamina (Epithelial Attachement)

Question 29

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

Answer 29

Reduced Enamel Epithelium

Question 30

The Reduced Enamel Epithelium functions to ______

Answer 30

Protect enamel from deposition of cementum

Question 31

During the Desmolytic Stage ________

Answer 31

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