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Dental Anatomy... 2020 > Anatomy > Flashcards

Anatomy Flashcards

1
Q

When does the primary dentition start forming?

A

14 weeks in utero

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2
Q

When do the first teeth appear?

A

About 6 months

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3
Q

When do the first permanent teeth appear?

A

6 years

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4
Q

Where do the crown and root of the tooth meet?

A

Cementoenamel junction

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5
Q

The cementoenamel junction is also known as ?

A

Cervical line

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6
Q

Where is the pulp chamber found?

A

The crown

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7
Q

What are the four tissues of the teeth?

A

Enamel
Dentin
Cementum
Pulp

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8
Q

Enamel, cementum, and dentin are known as hard or soft tissue?

A

Hard

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9
Q

Tooth surface towards the lips.

A

Labial

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10
Q

Tooth surface towards the tongue?

A

Lingual

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11
Q

Tooth surface facing the cheeks?

A

Buccal

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12
Q

What is a cusp?

A

An elevation or mound on the crown portion of the teeth.

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13
Q

When does the primary central incisor on the maxilla erupt?

A

8-12 months

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14
Q

When does the primary central incisor on the maxilla exfoliate?

A

6-7 yrs

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15
Q

When does the primary maxillary lateral incisor erupt?

A

9-13 months

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16
Q

When does the primary maxillary later incisor exfoliate?

A

7-8 yrs

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17
Q

When does the primary maxillary canines erupt?

A

16-22 months

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18
Q

When do the primary maxillary canines exfoliate?

A

10-12 yrs

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19
Q

When do the primary maxillary first molars erupt?

A

13-19 months

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20
Q

When do the primary maxillary first molars exfoliate?

A

9-11 yrs

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21
Q

When do the primary maxillary second molars erupt?

A

25-33 months

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22
Q

When do the primary maxillary second molars exfoliate?

A

10-12 yrs

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23
Q

When do the mandibular primary second molars erupt?

A

23-31 months

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24
Q

When do the mandibular primary second molars exfoliate?

A

10-12 yrs

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25
Q

When do the mandibular primary first molars erupt?

A

14-18 months

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26
Q

When do the mandibular primary first molars exfoliate?

A

9-11 yrs

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27
Q

When do the mandibular primary canines erupt?

A

17-23 months

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28
Q

When do the mandibular primary canines exfoliate?

A

9-12 yrs

29
Q

When do the mandibular primary lateral incisors erupt?

A

10-16 months

30
Q

When do the mandibular primary lateral incisors exfoliate?

A

7-8 yrs

31
Q

When do the mandibular primary central incisors erupt?

A

6-10 months

32
Q

When do the mandibular primary central incisors exfoliate?

A

6-7 yrs

33
Q

What do succedaneous teeth replace?

A

Exfoliated deciduous teeth

34
Q

Are there any permanent teeth that aren’t technically succedaneous teeth? If so which ones?

A

Yes, the permanent molars

35
Q

What is the number to remember the order of permanent teeth arrival of the maxilla?

A

781-0062

36
Q

What is the number to remember the order of the permanent teeth arrival of the mandible?

A

679-0161

37
Q

When do the third molars come in on both the maxilla and the mandible?

A

17-21 yrs

38
Q

What is the Palmer numbering system?

A

87654321 | 12345678
87654321 | 12345678
EDCBA | ABCDE
EDCBA | ABCDE

39
Q

What is the universal numbering system?

A

1-16 on the maxilla
16-32 on the mandible
A-T on the primary dentition

40
Q

Is the pulp soft or hard tissue?

A

Soft

41
Q

What are incisors used for?

A

A single ridge used as a cutting edge

42
Q

Where are cusps found?

A

Canines
Premolars
Molars

43
Q

On what teeth do you find single roots?

A

Incisors
Canines
Premolars except 1st maxillary pre-molar

44
Q

On what teeth do you find two roots?

A

1st Maxillary pre molars

mandibular molars

45
Q

On what teeth do you find three roots?

A

On the maxillary molars

46
Q

Where is the roots of the teeth held in the jaw?

A

Alveolar processes

47
Q

How many line angles are found in the anterior teeth?

A

6

48
Q

How many line angles are found in the posterior teeth?

A

8

49
Q

How many point angles are found in the anterior teeth?

A

4

50
Q

How many point angles are found in the posterior teeth?

A

4

51
Q

What tooth is the widest of any of the anterior teeth?

A

Central Incisor

52
Q

Is the labial surface on the maxillary central incisor more or less convex than the maxillary lateral incisors and canines?

A

Less

53
Q

What appearance/shape does the maxillary central incisor have?

A

Trapezoidal

54
Q

Which angle is more rounded on the maxillary central incisors?

A

The distal angle

55
Q

What is the Cervico-Incisal edge length on the maxillary central incisor?

A

10.5mm

56
Q

What is the mesial-distal length on the maxillary central incisor?

A

8.5 mm

57
Q

How long is the root of the maxillary central incisor?

A

12.5 mm about 2-3mm longer than the crown

58
Q

Is the curvature of the cervical line on the maxillary central incisor greater on the mesial or distal side?

A

Mesial

59
Q

From the Incisal view of the maxillary central incisor what is the shape of the crown?

A

Triangular

60
Q

What is the shape of the maxillary central incisor on the mesial or distal views?

A

Wedge or Triangular

61
Q

Where is the pulp cavity the widest in the maxillary central incisor?

A

Cervical area

62
Q

What tooth varies more than any other with the exception of the third molar?

A

Maxillary lateral incisor

63
Q

When does calcification of the teeth begin?

A

13-16 weeks in utero

64
Q

Is the cementum thicker or thinner in the permanent teeth when compared to the primary teeth?

A

It is thicker in the Permanent teeth

65
Q

Which teeth have the smallest mesiodistal dimensions?

A

Mandibular incisors

66
Q

What is the smallest tooth?

A

Mandibular central incisors

67
Q

The root of the mandibular central incisor wider in which view/direction?

A

The labiolingual

68
Q

How do you distinguish between the mandibular central and lateral incisors?

A

The incisal edge is at right angles with labiolingual bisecting line

Dental Anatomy... 2020 (3 decks)

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