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OrFac > CH:11 Overview of the Dentitions (Dental Arches, Teeth Functions, Surfaces and Anatomic Features) > Flashcards

CH:11 Overview of the Dentitions (Dental Arches, Teeth Functions, Surfaces and Anatomic Features) Flashcards

1
Q

What are the two sets of teeth people have in their lifetime.

A

Primary and permanent

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2
Q

How many teeth are in each dentition

A

20 in primary dentition

32 in permanent dentition

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3
Q

What is the terms for the four sections of the divided dental arches

A

Quadrants

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4
Q

What are the terms for the front teeth and the back teeth

A

Maxillary posterior
Maxillary anterior
Mandibular posterior
Mandibular anterior

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5
Q

What are the names of the sextants

A

Maxillary right posterior sextant, maxillary anterior sextant maxillary left posterior sextant

Mandibular left posterior sextant, mandibular anterior sextant, mandibular right posterior sextant

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6
Q

What are the four types of teeth

A

Incisors, canines (cuspids), premolars and molars

  • there are no premolars in the primary dentition
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7
Q

What is the function of incisors

A

To incise or cut (doesn’t require heavy force)

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8
Q

What is the function of canines (cuspid)

A

Cutting or tearing (requires force)

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9
Q

Which tooth is the longest and has the longest roots

A

Canines

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10
Q

How many premolars are there

A

Four

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11
Q

What is the function of a premolar

A

To hold it and grind

The pointed buccal holds
The lingual cusps grind

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12
Q

Why don’t we use the term bicuspid anymore

A

Because the term by means that the premolar only has to cusps and some premolars have three cusps

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13
Q

What is the function of molars

A

To chew in the grind

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14
Q

How many cups do molars have

A

Four or more cusps on the occlusal surface

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15
Q

Which tooth is referred as the “cornerstone” of the dental arch

A

Canines

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16
Q

How many surfaces does a tooth have

A

Five

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17
Q

What are the surfaces of a tooth

A

Facial, lingual, masticatory(occlusal), medial, and distal

18
Q

What are facial surfaces

A

The surface closest to the face

19
Q

What are labial surfaces

A

Surfaces closest to the lips

20
Q

What are buccal surfaces

A

surfaces closest to the inner cheek

21
Q

what are lingual surfaces

A

surfaces on the mandibular and maxillary teeth closest to the tongue

22
Q

what are palatal surfaces

A

surfaces closest to the palate

23
Q

what is the masticatory surface

A

the chewing surface

24
Q

what is the incisal surface (incisal edge)

A

the surface on anterior teeth

25
Q

what is the occlusal surface

A

the surface on posterior teeth

26
Q

what is the mesial surface

A

the surface on the tooth towards the midline

27
Q

what is the distal surface

A

the surface on the tooth distant from the midline

28
Q

what are proximal surfaces

A

when teeth are adjacent(next) to each other in an arch

29
Q

what are interproximal surfaces

A

the area between adjacent tooth surfaces

30
Q

Why are there curvatures on a tooth

A

to protect the gingiva from damage from the impact of foods during mastification, and stimulation for health

31
Q

what does concave mean

A

curved inward

32
Q

what does convex mean

A

curved outward

33
Q

what are contact areas (contact points)

A

the area of a mesial or distal surface of a tooth that touches the adjacent area of a tooth in the same arch

34
Q

what is the purpose of contact points

A

to prevent food from being trapped between teeth, stabilize the dental arches by holding the teeth in either arch, protects the interproximal gingival tissue from trauma during mastification

35
Q

what is the bulge

A

the height of the contour

36
Q

what is a contour

A

the curved surface of a tooth

37
Q

what is an embrasure

A

the triangular space near the gingiva between proximal surfaces of two adjoining teeth

38
Q

why must temporary crowns, bridges and restorations have proper contour, contacts, and embrasures

A

to ensure the health of oral tissue and for the comport of the patient and so the DA must understand the anatomical features of teeth to fabricate and place these temporary restorations

39
Q

what are the five surfaces of the the teeth

A

facial/buccul, lingual/palatal, distal, mesial, masticatory(occlusial surface, incisal surface)

40
Q

What is an interproximal space?

A

Area between adjacent tooth surfaces

41
Q

What are proximal surfaces?

A

The surfaces next to each other when teeth are adjacent to in an arch.

42
Q

What is the name of the triangular space towards the gingiva between adjacent teeth

A

An embrasure

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