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Oral Anatomy > Module 1 > Flashcards

Module 1 Flashcards

1
Q

Dental Anatomy

A

study of human tooth structures; taxonomical science

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2
Q

named by their set, arch, class, type, and side

A

Nomenclature

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3
Q

what are the two sets of teeth

A

Deciduous and Permanent Teeth

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4
Q

Primary “milk” dentition, 20 in total

A

Deciduous Teeth

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5
Q

Secondary “adult” teeth, 28-32 teeth, last being third molar or wisdom teeth

A

Permanent Teeth

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6
Q

Do not replace the primary teeth; not preceded by primary form (molars)

A

Non-succedaneous Teeth

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7
Q

permanent teeth that replace primary teeth

A

Succedaneous Teeth

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8
Q

Upper jaw

A

Maxillary

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9
Q

Lower jaw

A

Mandibular

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10
Q

what are the anterior teeth?

A

Incisors and Canines

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11
Q

what are the posterior teeth?

A

premolars and molars

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12
Q

state the four classes of teeth

A

Incisor
Canine
Premolars
Molars

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13
Q

what is the meaning of Incidere in Incisor?

A

to cut

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14
Q

Incisor

A

first kind of human tooth
cutting and shearing food

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15
Q

cuspids
longest root of all teeth
ripping and tearing food
dog teeth, fangs

A

Canine

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16
Q

bicuspids
tearing and grinding food
cross between canine and molars
transitional teeth

A

Premolars

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17
Q

meaning of Mola

A

millstone

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18
Q

tooth specialized in grinding

A

Molars

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19
Q

enumerate the three numbering systems

A

FDI World Dental Federation Notation
Universal Numbering System
Palmer Notation

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20
Q

widely recognized and used
also called FDI Two-Digits or ISO-3950
divided by four quadrants (primary - 5,6,7,8) (permanent - 1,2,3,4)

A

FDI (Federation Dentaire Internationale) World Dental Federation Notation

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21
Q

simplified method of identifying teeth
adopted by American Dental Association
permanent teeth are numbered 1-16 on maxillary, 17-32 in mandibular
primary teeth are lettered A-T

A

Universal Numbering System

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22
Q

originally called Zsigmondy System
uses symbols
termed after Adolf Zsigmondy
preferred method by orthodontist, dental students, and practitioners

A

Palmer Notation Method

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23
Q

anterior teeth facing the lips

A

Labial Surface

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24
Q

posterior teeth facing towards the cheek

A

Buccal Surface

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25
Q

surface closest or next to tongue
upper teeth = palatal surface
lower teeth = lingual surface

A

Lingual/Palatal surface

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26
Q

facing towards the surface of adjacent teeth

A

Proximal Surface

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27
Q

surface of tooth toward the median line

A

Mesial Surface

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28
Q

surface of tooth DISTANT from median line

A

Distal Surface

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29
Q

surface of anterior teeth use for cutting and tearing food

A

Incisal surface

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30
Q

surface of posterior tooth used for grinding
OCCLUDES w/ opposing tooth

A

Occlusal Surface

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31
Q

it is the linear elevation on the surface of crown

32
Q

linear, round enamel forms the mesial and distal margins

A

Marginal Ridge

33
Q

elevated area of enamel that EXTENDS OBLIQUELY across the occlusal of tooth

A

Oblique Ridge

34
Q

ridge of enamel that EXTENDS FROM CINGULUM TO CUSP TIP on lingual surface

A

Lingual Ridge

35
Q

ridges EXTENDING FROM CUSP TIP

A

Cusp Ridge

36
Q

union of buccal and lingual ridges

A

Transverse Ridge

37
Q

elevation of enamel that DESCENDS from cusp into the central part of occlusal surface

A

Triangular Ridge

38
Q

pointed rounded elevation found on cuspids

39
Q

convex mount of enamel
found on lingual aspect

40
Q

small pinpoint depression at junction or terminal developmental grooves

41
Q

rounded or angular depression

42
Q

centrally located depression
found on occlusal surface

A

Central Fossa

43
Q

irregular, shallow depression
found on lingual surfaces of incisors or cuspid

A

Lingual Fossa

44
Q

located adjacent to marginal ridges on occlusal surface of posterior teeth
has two types; mesial & distal

A

Triangular Fossa

45
Q

small linear depression on surface of a tooth

46
Q

fissure between cusps on the crown

A

Developmental Groove

47
Q

minor, auxiliary groove
gives wrinkled appearance the occlusal surface

A

Supplemental Groove

48
Q

primary division of crown
usually separated by developmental groove

49
Q

small, rounded projection of enamel

50
Q

portion of tooth COVERED BY ENAMEL

51
Q

lower two thirds of tooth COVERED BY CEMENTUM

52
Q

crown and root are covered by?

A

Cementoenamel Junction / Cervical Line

53
Q

what are the four tissues of tooth?

A

Enamel
Cementum
Dentin
Pulp

54
Q

hardest and most mineralized substance of body

55
Q

bone-like substance covering the root

56
Q

substance between enamel or cementum and pulp chamber

57
Q

covers crown and must support dentin

58
Q

central part of tooth with soft connective tissue

59
Q

serve as a medium by which periodontal ligaments can attach the tooth for stability

60
Q

visible dental tissue

61
Q

subject to severe cavities; decays more rapidly

62
Q

protective layers & support the crown

63
Q

contains BLOOD VESSELS AND NERVE that enter the tooth a hole at the APEX OF THE ROOT

64
Q

called “the nerve” of the tooth

65
Q

anterior teeth have —— root canal?

66
Q

posterior teeth have —– root canals?

67
Q

an imaginary line through the crown and root

68
Q

surface parallel to long axis

A

Axial Surface

69
Q

divided into cervical, middle, and apical third

70
Q

divided into thirds in three direction: inciso-occlusocervically, mesiodistally, or labio-or buccolingually

71
Q

angle formed by junction of TWO crown surfaces; eight line angles per tooth

A

Line Angle

72
Q

formed by junction of THREE crown surfaces

A

Point Angle

73
Q

DIVISION OF CROWN INTO THIRDS:
cervical 3rd, middle 3rd, occlusal/incisal 3rd

A

Horizontally

74
Q

DIVISION OF CROWN INTO THIRDS:
Labial/Buccal 3rd, Middle 3rd, Lingual 3rd

A

Longitudinally, Facial/Lingual Surface

75
Q

DIVISION OF CROWN INTO THIRDS:
Mesial 3rd, Middle 3rd, Distal 3rd

A

Longitudinally, Mesial/Distal Surface

76
Q

divided horizontally and longitudinally

A

facial/lingual surface

77
Q

divided longitudinally

A

mesial/distal surface

Oral Anatomy (2 decks)

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