Tooth Development/eruption - Odontogenesis

Front 1

Define
Odontogenesis

Back 1

tooth formation

Front 2

What are the 6 stages of tooth development?

Back 2

1.) Initiation
2.) Bud Stage
3.) Cap Stage
4.) Bell Stage
5.) Apposition Stage
6.) Maturation Stage

Front 3

What is the time span of the Initiation stage?

Back 3

6th-7th weeks

Front 4

What is the time span of the Bud stage?

Back 4

8th Week

Front 5

What is the time span of the Cap stage?

Back 5

9th-10th weeks

Front 6

What is the time span of the Bell stage?

Back 6

11th-12th weeks

Front 7

Initiation Stage (6-7 wks): What 4 changes are occuring?

(HINT: Induction = Tissue Lining)

Back 7

1.) Induction (an interaction between embryological tissues)
2.) Ectoderm lining the stomodeum gives rise to oral epithelium.
3.) The deeper Ectomesenchyme are influenced by neural crest cells.
4.) Both tissues are seperated by a basement membrane.

Front 8

Bud Stage (8 wks): Which 2 changes are occuring?

Back 8

1.) Dental lamina grows into mesoderm through proliferation.
2.) Enamel organs are forming.

Front 9

Bud Stage (8 wks):
How many enamel organs are forming in each arch?

Back 9

10

Front 10

Cap Stage (9-10 wks):
Which 3 changes are occuring?

Back 10

1.) Enamel organ morphs into cap and is now attached to dental lamina (through morphogenesis).
2.) Forming dental papilla through differentiation of ectomesenchyme.
3.) Ectomesenchyme beneath papilla becomes fibrous, circles papilla, and part of enamel organ to form DENTAL SAC.