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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
surface closest or next to tongue upper teeth = palatal surface lower teeth = lingual surface
Lingual/Palatal surface
26
facing towards the surface of adjacent teeth
Proximal Surface
27
surface of tooth toward the median line
Mesial Surface
28
surface of tooth DISTANT from median line
Distal Surface
29
surface of anterior teeth use for cutting and tearing food
Incisal surface
30
surface of posterior tooth used for grinding OCCLUDES w/ opposing tooth
Occlusal Surface
31
it is the linear elevation on the surface of crown
Ridge
32
linear, round enamel forms the mesial and distal margins
Marginal Ridge
33
elevated area of enamel that EXTENDS OBLIQUELY across the occlusal of tooth
Oblique Ridge
34
ridge of enamel that EXTENDS FROM CINGULUM TO CUSP TIP on lingual surface
Lingual Ridge
35
ridges EXTENDING FROM CUSP TIP
Cusp Ridge
36
union of buccal and lingual ridges
Transverse Ridge
37
elevation of enamel that DESCENDS from cusp into the central part of occlusal surface
Triangular Ridge
38
pointed rounded elevation found on cuspids
Cusp
39
convex mount of enamel found on lingual aspect
Cingulum
40
small pinpoint depression at junction or terminal developmental grooves
Pit
41
rounded or angular depression
Fossa
42
centrally located depression found on occlusal surface
Central Fossa
43
irregular, shallow depression found on lingual surfaces of incisors or cuspid
Lingual Fossa
44
located adjacent to marginal ridges on occlusal surface of posterior teeth has two types; mesial & distal
Triangular Fossa
45
small linear depression on surface of a tooth
Groove
46
fissure between cusps on the crown
Developmental Groove
47
minor, auxiliary groove gives wrinkled appearance the occlusal surface
Supplemental Groove
48
primary division of crown usually separated by developmental groove
Lobe
49
small, rounded projection of enamel
Mamelons
50
portion of tooth COVERED BY ENAMEL
Crown
51
lower two thirds of tooth COVERED BY CEMENTUM
Root
52
crown and root are covered by?
Cementoenamel Junction / Cervical Line
53
what are the four tissues of tooth?
Enamel Cementum Dentin Pulp
54
hardest and most mineralized substance of body
Enamel
55
bone-like substance covering the root
Cementum
56
substance between enamel or cementum and pulp chamber
Dentin
57
covers crown and must support dentin
enamel
58
central part of tooth with soft connective tissue
Pulp
59
serve as a medium by which periodontal ligaments can attach the tooth for stability
cementum
60
visible dental tissue
enamel
61
subject to severe cavities; decays more rapidly
dentin
62
protective layers & support the crown
dentin
63
contains BLOOD VESSELS AND NERVE that enter the tooth a hole at the APEX OF THE ROOT
Pulp
64
called "the nerve" of the tooth
Pulp
65
anterior teeth have ------ root canal?
one
66
posterior teeth have ----- root canals?
multiple
67
an imaginary line through the crown and root
Long Axis
68
surface parallel to long axis
Axial Surface
69
divided into cervical, middle, and apical third
root
70
divided into thirds in three direction: inciso-occlusocervically, mesiodistally, or labio-or buccolingually
crown
71
angle formed by junction of TWO crown surfaces; eight line angles per tooth
Line Angle
72
formed by junction of THREE crown surfaces
Point Angle
73
DIVISION OF CROWN INTO THIRDS: cervical 3rd, middle 3rd, occlusal/incisal 3rd
Horizontally
74
DIVISION OF CROWN INTO THIRDS: Labial/Buccal 3rd, Middle 3rd, Lingual 3rd
Longitudinally, Facial/Lingual Surface
75
DIVISION OF CROWN INTO THIRDS: Mesial 3rd, Middle 3rd, Distal 3rd
Longitudinally, Mesial/Distal Surface
76
divided horizontally and longitudinally
facial/lingual surface
77
divided longitudinally
mesial/distal surface

Oral Anatomy (2 decks)

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