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Chapter 2 Tooth Flashcards

(54 cards)

1
Q

tooth functions

A

protection, digestion, speech, and apperance

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2
Q

2 main part of tooth

A

crown and root

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3
Q

cementum

A

thin layer covers root

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4
Q

dentin hardness like

A

a bone

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5
Q

pulp chamber found in

A

the crown

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6
Q

pulp canal

A

found in root

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7
Q

what is the function of cementum

A

main part of the tooth that helps attach it to the bone

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8
Q

alveolar bone surrounds

A

the tooth

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9
Q

alveolar process

A

hugs the tooth

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10
Q

pdl fibers

A

periodontal ligaments
connect tooth to the bone

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11
Q

apex

A

end

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12
Q

apical foramen

A

opening at the end of tooth in root
- nerves and blood supply pass through to the pulp

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13
Q

sulcus

A

shallow groove which tooth and gums meet

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14
Q

gingiva

A

gum

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15
Q

cusp

A

tip of tooth elevation

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16
Q

anatomical crown

A

part of crown covered by enamel

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17
Q

clinical crown

A

crown visible in mouth

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18
Q

enamel definition

A

-covers anatomical crown
-has some translucency
-hardest tissue of body
-has enamel rods/prisms

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19
Q

dentin definition

A

-forms main portion of tooth
-hard, dense, elastic in nature
-yellow
-healing reaction by making secondary dentin
-had dentinal tubules

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20
Q

pulp definition

A

-nourishing, sensory
-blood vessels, lymph vessels, connective tissues, nerve tissues
-pulp chamber: part of pulp that is crown
-pulp canal: part of pulp that is in root
-pulp horns: prolongation of the pulp toward cusp

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21
Q

cementum definition

A

-covers root
-bonelike
-provides attachment of tooth to alveolar bone
-meets enamel at the cementoenamel junction (CEJ)

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22
Q

cervical line

A

where crown and root meet

23
Q

crown is covered with

24
Q

root is covered with

25
cementoenamel junction (CEJ) =
cervical line = crown and root join at
26
apex
end of root
27
apical foramen
hole at apex
28
alveolar process
portion of jaw that supports the teeth
29
alveolus
tooth socket
30
furcation area
where the roots of multirooted teeth divide
31
bifurcated root which teeth have it
- 2 roots - mandibular molars, maxillary 1st premolars
32
trifurcated root which teeth have it
- 3 roots - only maxillary molars
33
another name for adult teeth
permanent
34
another name for baby teeth
primary or deciduous
35
succedaneous teeth
adult teeth that replace baby teeth
36
describe incisors and purpose
-lateral and central -one root -no cusps instead have incisal edge -cutting
37
describe canine and purpose
-one root -one cusp -longest root -tearing
38
describe premolar and purpose
-one root -two cusps -only maxillary 1st premolar has two roots -grind
39
describe molar and purpose
-two to three roots -two roots on mandibular -three roots on maxillary -four cusps - maxillary 1st molar has 5 cusps
40
surfaces of anterior teeth
distal, mesial, lingual, incisal, labial (facial) -4 surfaces, 1 ridge (edge)
41
surfaces of posterior teeth
distal, mesial, lingual, occlusal, buccal -5 surfaces
42
teeth can be divided into 1/3's on all sides
-mesial, middle, distal thirds -facial, middle, lingual thirds -incisal (occlusal), middle, and cervical thirds
43
line angle
junction of two tooth surfaces
44
point angles
junction of three tooth surfaces
45
lobes
growth areas that form crown of tooth usually 4
46
mamelons
rounded, bumpy ridges found on the cutting edge on newly erupted incisor teeth
47
developmental groove
area between two lobes -lines of fusion for lobes
48
cingulum
bulge found on cervical third of the interior teeth on the lingual side -lingual lobe of anterior teeth
49
fissues
small lines or grooves that run on the lowest parts of the teeth
50
pits
where fissures meet and the deepest part -usually where cavity or food gets stuck
51
ridge
elevation on mesial or lingual side -elevated portion of tooth that runs in a line
52
marginal ridges
rounded borders of enamel on mesial and distal shoulders
53
contour
curved surfaces of the teeth
54
fossa
depression of concavity