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dental assisting mda > Tooth Morphology Chapter 11, 12, 28 > Flashcards

Tooth Morphology Chapter 11, 12, 28 Flashcards

1
Q

Morphology is the

A

study of the form of a body part

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2
Q

tooth morphology is the

A

study of shape, size, form, structure of teeth

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3
Q

Which dental arch is stationary

A

maxillary

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4
Q

Occlusion is the surface/action of

A

top surface of tooth, and contact between arches

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5
Q

The two types of dentition are

A

primary and permanent

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6
Q

What are the three dentition periods

A

Primary(deciduous), Mixed, Permanent(Succedaneous)

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7
Q

When does the primary dentition period occur?

A

6 months to 6 years old

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8
Q

Mixed dentition period occurs during years

A

6 and 12

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9
Q

When the last primary tooth is shed what proceeds

A

Permanent dentition

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10
Q

The premature loss of baby teeth can result in

A

misalignment, spacing and occlusal complications

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11
Q

Primate spaces

A

the spaces between baby teeth

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12
Q

Succedaneous teeth

A

Permanent teeth following a primary

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13
Q

The nonsuccedaneous teeth are the

A

12 adult molars

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14
Q

The anterior teeth include

A

incisors and canines

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15
Q

the posterior teeth include

A

premolars and molars

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16
Q

Mesial and distal surfaces are where

A

toward and away from the midline

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17
Q

Lingual and buccal surfaces are located

A

towards the cheek (posterior) and toward the tongue (anterior)

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18
Q

Where is the labial surface of a tooth

A

toward the lips (anterior)

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19
Q

The top biting edge of an anterior tooth is the

A

incisal edge

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20
Q

Occlusal surface of the tooth is where

A

the top biting surface of anterior teeth

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21
Q

The palatal surface only refers to which arch

A

the maxillary arch

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22
Q

Facial and vestibular surfaces are used where in the mouth

A

labial surface of anterior and buccal surface of posterior

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23
Q

how many surfaces do teeth have on the crown

A

5

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24
Q

Cervical surface of tooth is located

A

by the gingiva

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25
Q

a cusp is a

A

major elevation on biting surface

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26
Q

What is a fossa

A

wide shallow depression on lingual anterior teeth and occlusal surface of posterior(receiving cusp)

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27
Q

Ridge

A

thin elongated surface on medial/distal

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28
Q

What are mamelons

A

rounded enamel extensions on incised edge of newly erupted teeth

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29
Q

The cusp of carabelli (5th cusp) is found on which teeth

A

the perm. max. first molar and prim. max. second molar

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30
Q

A central groove is the

A

most prominent groove on posterior occlusal surface

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31
Q

Where can you find height of contour

A

At the point of greatest circumference

32
Q

Marginal grooves are where

A

medial/distal edges on lingual side of anterior teeth and occlusal surface of posterior teeth

33
Q

which premolar has two roots

A

maxillary first premolar

34
Q

mandibular molars have how many roots

A

2

35
Q

maxillary molars have how many roots

A

3

36
Q

third molar is also known as the

A

wisdom tooth

37
Q

Contact areas are on the

A

mesial or distal surface of tooth in contact with adjacent tooth

38
Q

Contact points are

A

the direct point where teeth contact

39
Q

Embrasures are the spaces

A

above and below contacts

40
Q

Line angles are the junction of

A

two walls

41
Q

Point angles are the junction of

A

3 surfaces

42
Q

Occlusal/ incised divisions are located on the

A

nearest to biting surfaces of teeth

43
Q

The apical division is the

A

nearest to root

44
Q

Cervical division is nearest to the

A

neck of the tooth

45
Q

The universal system numbers permanent teeth as

A

1-32, starting max right and ending man right

46
Q

Universal primary teeth are assigned as

A

A-T, clockwise

47
Q

FDI system uses what kind of counting system

A

A two digit system

48
Q

FDI quadrants are numbered 1-4 and 5-8 in what direction

A

clockwise staring maxillary right

49
Q

If a tooth is missing does it affect the numbering

A

no

50
Q

Palmer notation primary teeth are lettered

A

A-E per quadrant

51
Q

the cornerstones of the dental arch is the

A

canine teeth

52
Q

Which teeth are commonly missing at birth

A

the lateral incisors and third molars

53
Q

which primary tooth erupts first and when?

A

the central incisor at 6-10 months

54
Q

What age do the first permanent molars come in?

A

6-7 years

55
Q

The maxillary 2nd molar erupts at age

A

11-13 years

56
Q

Which two teeth erupt together at age 12-13?

A

Maxillary 2nd molar and mandibular 2nd premolar

57
Q

what tooth eruption ends the mixed dentition stage

A

the mandibular second premolar

58
Q

Centric occlusion

A

stable contact of jaws

59
Q

functional occlusion

A

contact during biting or chewing

60
Q

malocclusion

A

abnormal/malpositioned relationship of teeth

61
Q

Normal occlusion is the occlusion of

A

cusps with no misalignment

62
Q

Malocclusion Class 1

A

Neutrocclusion - the molars align but teeth are crooked

63
Q

Malocclusion Class 2

A

Distocclusion - The maxillary molars are to far forward (overbite)

64
Q

Malocclusion Class 3

A

Mesiocclusion - The 3rd molars are behind lower molars (underbite)

65
Q

An underbite is class

A

3

66
Q

overbite is class

A

2

67
Q

crooked teeth but proper occlusion is class

A

1

68
Q

Class I of cavity’s is the

A

top of molars, fossa of anterior

69
Q

Class II of cavities is the

A

proximal surfaces of molars and premolars

70
Q

Class III of cavity’s is the

A

proximal surfaces of incisors and canines(not the edges)

71
Q

Class IV of cavity’s is the

A

Proximal surfaces of incisors and canines including edges

72
Q

Class V of the cavity’s is

A

Cervical third of all teeth

73
Q

Class VI of cavity’s is the

A

edge of anterior and tip of cusps

74
Q

Closure is defined as

A

the jaws closing starting from posterior teeth for stability

75
Q

Curve of Spee

A

occlusion of Maxillary Mandibular making a curve

76
Q

Curve of Wilson

A

line across occlusal surface from molar to molar

dental assisting mda (35 decks)

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