dentition Flashcards

1
Q

crown

A

functional part, used for biting/chewing
covered by enamel

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2
Q

root

A

embedded in alveolus
supports crown
covered by cementum

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3
Q

neck/cervix

A

cementoenamel junction
between crown and root

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4
Q

enamel

A

covers crown
hardest substance in body
most hydroxyapatite
not living, cannot remodel

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5
Q

ameloblasts

A

enamel forming cells at tips of crowns

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6
Q

cementum

A

covers root
more like bone

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7
Q

cementoblasts

A

forms cementum

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8
Q

periodontal ligament

A

adheres to root, lines pulp cavity
holds tooth in alveolus

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9
Q

apical foramen

A

tip of root, entry of nerves and blood vessels

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10
Q

dentin

A

internal structure of crown and root
similar to compact bone
nourished by vascular system of pulp (inner tooth)
visible on tooth surface when enamel wears down

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11
Q

odontoblasts

A

forms dentin

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12
Q

pulp

A

soft tissue, heart of tooth
lined by thin periodontal membrane
home of nerves and blood vessels that enter through apical foramen

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13
Q

how many teeth do adults have

A

32

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14
Q

human dental formula

A

2:1:2:3

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15
Q

how many incisors in each quadrant

A

2

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16
Q

how many canines in each quadrant

A

1

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17
Q

how many premolars in each quadrant

A

2

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18
Q

how many molars in each quadrant

A

3

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19
Q

2 sets of human teeth

A

deciduous (baby teeth)
permanent

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20
Q

how many teeth are in deciduous set

A

20

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21
Q

deciduous dental formula

A

2:1:0:2

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22
Q

deciduous and permanent at the same time

A

mixed dentition

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23
Q

anthropological significance of teeth

A

age estimation in non adult individuals from dental development
adult age estimates from dental wear

24
Q

occlusal

A

chewing surface

25
incisal
chewing surface for incisors and canines
26
apical
root tip
27
lingual
tongue side
28
buccal
cheek side
29
labial
lip side for incisors and canines
30
mesial
contact surface between teeth closest to midsagittal place
31
distal
contact surface between teeth farthest from midsagittal place
32
tooth nomenclature
I = Incisors C = Canine P = Premolar M = Molar
33
superscripts
maxillary
34
subscripts
mandibular
35
permanent dentition nomenclature
capitalized letters
36
deciduous dentition nomenclature
lowercase letters
37
which teeth did we lose in evolutionary history
first and second premolars
38
square molars are located where
maxillary
39
rectangular molars are located where
mandibular
40
of cusps in molars
4 = maxillary 4/5 = mandibular
41
of roots in molars and where
3 (2 buccal, 1 lingual) = maxillary 2 (1 mesial, 1 distal) = mandibular (looks fused)
42
maxillary molar cusps
protocone hypocone paracone metacone
43
protocone
mesial lingual largest
44
buccal cusps
protoconid hypoconid
45
lingual cusps
metaconid entoconid
46
5th cusp sometimes
hypoconulid
47
is anterior fovea mesial or distal
mesial
48
is hypoconulid mesial or distal
distal
49
what separates protoconid and hypoconid
deep buccal groove
50
what does greater wear on molars mean for siding
greater wear is most likely the buccal side
51
deciduous molars name
dm2 and dm1
52
deciduous molars
roots tend to be more splayed out enamel thin
53
premolars (bicuspids)
2 cusps, one buccal and one lingual flattened roots, appear to fuse from 2 separate roots
54
central furrow separates...
larger buccal cusp (paracone) and smaller lingual cusp (protocone)
55
maxillary molars
square 4 cusps, 3 roots (2 buccal, 1 lingual)
56