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Dental assisting > Chapter 11 & 12 > Flashcards

Chapter 11 & 12 Flashcards

1
Q

Morphology

A

study of the form of an organ or body part

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2
Q

Tooth morphology

A

study of the size shape form and structure of teeth

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3
Q

Primary dentition

A

baby teeth

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4
Q

permanent dentition

A

adult teeth

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5
Q

how many primary teeth are there?

A

20 teeth (10 per arch)

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6
Q

Mixed

A

when primary teeth are exfoliating and permanent teeth are erupting

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7
Q

Succedaneous teeth

A

permanent teeth that replace deciduous (primary) teeth

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8
Q

Non-succedaneous

A

Last teeth to erupt don’t follow a primary tooth

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9
Q

How many permanent teeth are there?

A

32 teeth (16 per arch)

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10
Q

What teeth are replaced from primary to permanent teeth

A

first molar replaced by 1st pre molar,

second molar replaced by 2nd pre molar

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11
Q

Another word for canines

A

cuspids

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12
Q

permanent quadrant contains what

A

centeral incisor, lateral incisor, canine, 1st , 2nd premolar and 1st 2nd 3rd molars

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13
Q

primary (deciduous) quadrant contains what

A

2 incisors( 1 central and 1 lateral), 1 canine, 1st and 2nd molar

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14
Q

mesial

A

toward the midline

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15
Q

distal

A

away from the midline

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16
Q

lingual

A

inside, toward the tongue

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17
Q

labial

A

outside, towards lips

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18
Q

incisal

A

bitting or cutting edge (eg incisors)

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19
Q

buccal

A

outside, towards the cheek

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20
Q

occlusal

A

grinding or chewing surface. Flatter/bigger surface. eg) molars

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21
Q

Cusp

A

major elevation on surfaces of the canines and posterior teeth

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22
Q

fossa

A

wide shallow depression on the LINGUAL surfaces

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23
Q

cingulum

A

raised rounded area on the cervical third of the lingual surface

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24
Q

ridge

A

a thin elongated surface.

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25
Q

mamelon

A

rounded enamel on the incisal edge on newly erupted incisors

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26
Q

cusps of carabelli

A

5th cusp found on lingual to the mesiolingual cusp. only ever on permanent 1st maxillary molar and primary 2nd molars.

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27
Q

Referred to as the cornerstones

A

canines

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28
Q

Which tooth on permanent maxillary has 2 roots

A

1st maxillary premolar

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29
Q

Another word for premolars

A

bicuspids

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30
Q

how many roots do permanent maxillary molars have

A

3

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31
Q

how many roots do permanent mandibular molars have

A

2

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32
Q

height of contour

A

the bulge or widest point on a surface of the crown

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33
Q

exact spot at which the teeth actually meet

A

contact point

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34
Q

triangular space between two teeth, when two teeth in the SAME ARCH contact.

A

embrasure

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35
Q

where is the extra 5th cusp found on

A

permanent maxillary 1st molar and primary 2nd molars

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36
Q

contours

A

helps tooth stay healthy. crown of the tooth narrows towards the cervical line

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37
Q

what do curvatures do

A

provide natural passageways for food and protect the gingiva during chewing (mastication)

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38
Q

apical third

A

nearest the tip of the root

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39
Q

middle third

A

nearest the middle of the root

40
Q

cervical third

A

nearest the neck of the tooth

41
Q

(primary and permanent) have how many roots on anterior teeth , incisors, central, canines

A

1 root

42
Q

all maxillary molars have 3 roots except

A

3rd molar

43
Q

the first digit indicates

A

quadrant

44
Q

the second digit indicates

A

the tooth

45
Q

t/f; primary teeth have premolars

A

false

46
Q

how is the PRIMARY universal numbering system labeled

A

A-T

47
Q

How is the PRIMARY palmer notation numbering system labeled

A

with brackets A-E

48
Q

how is the PRIMARY FDI notation numbering system labeled

A

1-5

49
Q

how is the PERMANENT universal numbering system labeled

A

1-32

50
Q

how is the PERMANENT fdi numbering notation system labeled

A

1-8

51
Q

How is the PERMANENT palmer notation numbering system labeled

A

with brackets 1-8

52
Q

occlusion

A

when teeth in the maxillary and mandible are in contact closed position

53
Q

how long do primary teeth last

A

6months-6years

54
Q

another word for primary

A

deciduous

55
Q

what do primary teeth do

A

assist with speech, provide chewing surfaces to strengthen. Important to guide permanent teeth

56
Q

when do mixed teeth last

A

6 -12 years

57
Q

t/f; Permanent molars are non-succedaneous since they’re last to erupt

A

true

58
Q

wisdom teeth are known as the

A

3rd molars

59
Q

t/f; cusp of carabelli is usually on the lingual side

A

true

60
Q

t/f; all anterior teeth have a cingulum a rounded raised area on the cervical third of the lingual surface

A

true

61
Q

what do molars help in

A

chew and grind food, have a wider surface

62
Q

which molar has fused roots

A

3rd molar

63
Q

centric occlusion

A

jaws are closed in a position that produces stable contact between occluding surfaces of the maxillary and mandibular teeth

64
Q

functional occlusion

A

contact of the teeth during biting and chewing. (in motion)

65
Q

malocclusion

A

abnormal or malpositioned relationship of the teeth

66
Q

curve of spee

A

the curve formed by the maxillary and mandibular arches in occlusion. (line right threw posterior to anterior)

67
Q

curve of Wilson

A

a line is drawn across the occlusal surface of left mandibular first molar across through the occlusal of the right mandibular first molar

68
Q

What tooth is the smallest in the dentition

A

mandibular centeral incisor

69
Q

what tooth is to erupt first and what year

A

primary mandibular central incisor 6-10 months

70
Q

how many roots are on the 1st 2nd 3rd molars of the permanent maxillary

A

3 roots

71
Q

how many roots are on the 1st 2nd 3rd molars of the permanent mandibular

A

2 roots

72
Q

how many roots are on the 1st 2nd molars of the primary maxillary

A

3 roots

73
Q

how many roots are on the 1st 2nd molars of the primary mandibular

A

2 roots

74
Q

what is the largest crown in the maxillary dentition

A

1st molar

75
Q

what time period do primary dentition happen

A

6 months - 6 years

76
Q

what time period do mixed dentition happen

A

6 years - 12 years

77
Q

what time period do permanent dentition happen

A

after 12 years

78
Q

class I (neutroclusion)

A

mesiobuccal cusp of the permanent maxillary 1st molar occludes with the mesiobuccal groove of the mandibular 1st molar. Crowding may occur

79
Q

class II (distoclusion) division 1

A

(overbite) maxillary incisors are in labioversion (extend facially beyond the normal overlap of incisal edge of mandibular incisors

80
Q

class II (distoclusion) division II

A

maxillar central incisors are positioned at a normal angle, lateral incisors are tipped labially and mesially

81
Q

class III (mesioclusion)

A

(underbite) the lower jaw moves forward. mesiobuccal cusp of permanent maxillary molar occludes by more than the width of a premolar,

82
Q

every tooth has 2 antagonists except

A

mandibular centeral incisors, maxillary 3rd molars

83
Q

Most prominent groove on posterior teeth

A

central groove

84
Q

which tooth is to erupt last on permanent

A

3rd molar

85
Q

which tooth is to erupt last on primary

A

2nd molar

86
Q

pit

A

two grooves coming together in a point usually on occlusal sometimes buccal

87
Q

class I

A

the pits & fissures of occlusal surfaces of molars/premolars

88
Q

class II

A

proximal (mesial and distal) surfaces of premolars and molars . (can also include occlusal)

89
Q

class III

A

proximal (mesial and distal) surfaces of anterior teeth ( incisors/canines)

90
Q

class IV

A

proximal (mesial and distal surfaces) of anterior teeth but involves the incisal edge.

91
Q

class V

A

a gingival third of the facial or lingual surfaces

92
Q

class VI

A

on the incisal edge of anterior teeth and the cusp tips of posterior teeth.

93
Q

permanent maxillary 1st and 2nd pre molars have how many cusps

A

2

94
Q

How many cusps are on 1st 2nd 3rd molars

A

4 cusps but first molar has 5

95
Q

Mandibular first and second pre molars have how many cusps

A

2

96
Q

second premolar of maxillary permanent has how many roots

A

1

Dental assisting (57 decks)

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