Flashcards in 14295_CH7DentalAnatomy Deck (97)
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1
Three developmental periods?
Growth, Calcification, Eruption
2
Dental development begins?
5th/6th week - prenatal
3
Horseshoe shaped band?
Dental lamina
4
Growth period of development?
Bud, Cap, Bell
5
# of buds per dental arch?
Usually 10
6
Buds for permanent teeth form when?
17 weeks - 5 yrs
7
Cap stage also known as?
Proliferation
8
Small nipple shaped elevation?
Dental papilla
9
Last period of growth?
Histodifferentiation or bell stage
10
Cells that form enamel?
Ameloblast
11
Cells that form dentin?
Odontoblast
12
Cells that form cementum?
Cementoblast
13
Tooth takes shape through _______ in the _______ phase?
Morphodifferentiation, Bell
14
Depositing of the matrix?
Apposition
15
Crown completion to tooth emerging?
3yrs (perm teeth)
16
Study of anatomy?
Histology
17
Tooth divided into how many parts?
2 : crown, root(s)
18
Crown divided into?
Anatomic, Clinical crown
19
Four or more roots?
Multirooted
20
Opening for blood/nerves?
Apical foramen
21
Covers anatomic crown and protects dentin?
Enamel
22
Enamel composition?
96% inorganic, 1% organic, 3% water
23
Enamel can endure how much crushing pressure?
1,000 lbs per sq inch
24
Enamel is composed of?
Millions of enamel rods or prisms
25
Constitutes largest portion of the tooth?
Dentin
26
Dentin is harder than ____ but softer than ______?
Bone, enamel
27
Dentin makeup?
70% inorganic, 30% organic and water
28
Covers roots of teeth?
Cementum
29
Cementum color?
light yellow (lighter than dentin)
30
