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GENP 311 > Overview of Dentitions > Flashcards

Overview of Dentitions Flashcards

1
Q

Primary dentition

A

20 teeth total
No premolars
No 3rd molars/wisdom teeth

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2
Q

Permanent dentition

A

32 teeth total

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3
Q

Mixed dentition

A
  • When both primary and permanent teeth are present in the same dentition
  • Ages 6-12
  • More than 20 teeth
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4
Q

UR

A

Maxillary right
Upper right

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5
Q

UL

A

Maxillary left
Upper left

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6
Q

LR

A

Mandibular right
Lower right

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7
Q

LL

A

Mandibular left
Lower left

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8
Q

How many teeth does a primary quadrant have?

A

5

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9
Q

How many teeth does a permanent quadrant have?

A

8

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10
Q

Anterior teeth

A

Canine to canine

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11
Q

Posterior teeth

A

Premolar to third molar

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12
Q

How many teeth are in a sextant?

A

6

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13
Q

DAQT

A

Dentition
Arch
Quadrant
Tooth

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14
Q

Enamel

A

White outermost layer of the crown

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15
Q

Dentitn

A

Yellow, biggest layer

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16
Q

Cementum

A

Outermost layer of the root, not visible

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17
Q

Pulp

A

Soft tissue in tooth
Radiolucent

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18
Q

Bifurcation

A

A division of the root trunk into two branches

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19
Q

Trifurcation

A

A division of root trunk into three branches

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20
Q

Furcation

A

Point of division of a multirooted tooth

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21
Q

Common traits of all roots

A
  • Widest at the CEJ and tapered towards the apex
  • More bulk on the facial surface than on the lingual
  • Many surfaces of the roots have indentation or root concavities
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22
Q

Root axis line/RAL

A

Imaginary line through the center of the tooth root

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23
Q

Cervical line or CEJ

A

Separates the anatomic crown from the anatomic root

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24
Q

Anatomic crown

A

“Whole” crown of the tooth that is covered by enamel, regardless the tooth is erupted

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25
Q

Clinical crown

A

Is only that part seen in the gingiva, term only applies when tooth is in the mouth and at least partially erupted

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26
Q

Anatomic root

A

Part of tooth covered with cementum

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27
Q

Clinical root

A

Part of the tooth which is not visible in the mouth yet

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28
Q

Mesial

A

Closest to the midline

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29
Q

Distal

A

The surface farthest from the midline

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30
Q

Facial

A

The surfaces closest to the face or outer surfaces of the teeth

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31
Q

Anterior facial is called…

A

Labial surface

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32
Q

Posterior facial is called…

A

Buccal

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33
Q

Lingual

A

Surfaces closest to the tongue, all inner surfaces

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34
Q

Lingual of the maxillary is called…

A

Palatal surface

35
Q

Masticatory

A

The chewing surface on the most superior surface of the crown

36
Q

Posterior masticatory is called…

A

Occlusal

37
Q

Anterior masticatory is called…

A

Incisal surfaces

38
Q

What do the masticatory surfaced have?

A
  • Linear elevations, or ridges
  • Named according to location
39
Q

The canines have…

A
  • Cusps
  • One major elevation
40
Q

Interproximal space

A

Area between adjacent tooth surfaces

41
Q

Contact area

A
  • Area where the crowns of adjacent teeth in the same arch physically touch on each proximal surface
42
Q

How many contacts does each tooth have?

A

2

43
Q

Were are the contacts located?

A

At the height of contour

44
Q

What four teeth are the exception to the contact rule?

A

8, 9, 24, and 25

45
Q

Purpose of contact areas?

A
  • Prevents impaction
  • Stabilizes arch
  • Prevents buildup
  • Protection
46
Q

Interproximal bone

A

Part of bone in-between teeth

47
Q

Contact area general rules

A
  • More cervically located anterior to posterior
  • Mesial more incisally or occlusally located except mandibular incisors
  • Larger in posterior than anterior
48
Q

Contact point

A

Relationship between max and mand arch

49
Q

Height of contour

A

Widest point

50
Q

Height of contour is usually higher on the mesial or distal?

A

Mesial

51
Q

Proximal height of contour on anterior teeth is located…

A

Closer to the incisal surfaces

52
Q

Proximal height of contour on posterior teeth is located…

A

Near the middle third

53
Q

Height of contour on buccal

A

Anterior and posterior teeth is cervical third

54
Q

Height of contour on lingual

A
  • Anterior teeth is cervical third
  • Posterior teeth is middle third
55
Q

Function of height of contour

A

Natural tooth convexities divert food away from the tissue

56
Q

Insufficient contour

A

Inadequate protection, too much stimulation

57
Q

Excessive contour

A

Inadequate stimulation

58
Q

Embrasures

A
  • When two teeth in the same arch come into contact, their curvature next to contact areas form this
  • V shape
59
Q

In the posterior, are the embrasures bigger or smaller on the lingual? Why?

A
  • Lingual embrasures are larger than facial
  • Contact area is more buccal
60
Q

Do facial embrasures increase or decrease in size when you move from anterior to posterior? Why?

A
  • Increase, bigger in posterior
  • Because the contact points are located more cervically
61
Q

Functions of embrasures

A
  • Serve as spillway
  • Integral part of self cleansing
  • Reduces force of mastication
  • Allows stimulation of the gingiva
62
Q

What are the closed spaces in the interproximal spaces

A

Interdental papilla

63
Q

Interproximal space functions

A
  • Vascular support, nourishment
  • Prevents impaction
  • Anchorage and support
64
Q

What stimulates the peridontum?

A

Shape, height of contour, contact areas, contact point, interproximal spaces, embrasures

65
Q

Gum vs periodontum

A
  • Gum is what we see
  • Periodontium is the whole thing, including shape, embrasure, etc.
66
Q

Proximal divisions

A

3 vertical thirds
- Facial
- Middle
- Lingual

67
Q

Root division

A

Horizontal thirds
- Apex
- Middle
- Cervical

68
Q

Line angle

A

Describes the junction where two surfaces meets

69
Q

Point angle

A

Another way to determine a specific area of the crown

70
Q

Succedaneous teeth

A

Teeth that replace primary dentition

71
Q

What teeth are succedaneous?

A
  • IIncisors: Central/lateral
  • Canine
  • Premolars (1st and 2nd)
72
Q

Nonsuccedaneous teeth

A

All molars

73
Q

Are molars succedaneous?

A

No

74
Q

Are all succedaneous teeth permanent teeth?

A

Yes

75
Q

Are all permanent teeth succedaneous teeth?

A

No

76
Q

Are primary teeth succedaneous?

A

No

77
Q

Premolars are also called…

A

Bicuspids

78
Q

Role of incisors?

A

Cut food

79
Q

Role of canines?

A

Tear food

80
Q

Role of molars?

A

Chew, crush, and grind food

81
Q

3 system of identifying teeth

A
  • Universal
  • Palmer
  • International Standard Organization
82
Q

What system uses one digit and one symbol?

A

Palmar

83
Q

What system is two digit system?

A

ISO

GENP 311 (8 decks)

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