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Flashcards in Odontogenesis Deck (54)
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0

Horse shoe shaped band of thickened epithelium in the mandibular and maxillary arches?

Primary epithelial band

1

3 stages of odontogenesis?

  1. Bud stage
  2. Cap stage
  3. Bell stage

2

Enamel organ is composed of? (4)

  • Outer and inner enamel epithelium
  • Stellate reticulum
  • Stratum intermedium

3

Star shaped network of cells found at the center of the enamel organ?

Stellate reticulum

4

Found between the stellate reticulum and inner dental epithelium?

Stratum intermedium

5

Serves as the enamel pulp?

Stellate reticulum

6

Tooth germ comprises of? (3)

  • Enamel organ
  • Dental papilla
  • Dental follicle/sac

7

Transitory structures (3)

  • Enamel knot/Aherns knot
  • Enamel cord
  • Enamel navel

8

Condensation of cells found at the midportion of the enamel organ?

Enamel knot

9

Vertical extension of the enamel knot towards the outer enamel epithelium?

Enamel cord

10

Indentation found at the outer enamel epithelium?

Enamel navel

11

It forms the site of the future cusp tips or incisal edge?

Enamel navel

12

Part of the enamel organ containing the mucoid fluid?

Stellate reticulum

13

3 physiologic processes of odontogenesis?

  1. Morphodifferentiation
  2. Histodifferentiation
  3. Apposition

14

It determines the shape of the crown?

Membrana preformativa

15

Membrana preformativa is also called?

Basement membrane

16

It marks the line which will become the DEJ of the finished tooth?

Membrana preformativa

17

It initiates the peripheral cells of the dental papilla to become odontoblasts.

Preameloblasts

18

What causes the preameloblasts to become ameloblasts?

Secretion of dentinal matrix by the odontoblasts

19

True or false. Predentin is completely organic when formed?

True

20

This process is responsible for the production of enamel in the form of rods?

Tome's process

21

Which is formed first: enamel or dentin?

Dentin

22

Final product of ameloblasts which is a protective covering of the enamel?

Primary enamel cuticle

23

Primary enamel cuticle is also called?

Nasmyth's membrane

24

Fusion of the enamel organ will form the?

Reduced enamel epithelium

25

Also called "dental cuticle"?

Secondary enamel cuticle

26

Is the secondary enamel cuticle mineralized or non mineralized?

Non mineralized

27

Dental cuticle is produced by?

Reduced enamel epithelium

28

When the reduced enamel epithelium combines with the oral epithelium, it is now called?

Junctional epithelium

29

It divides the dental lamina into two?

Enamel niche