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structure basics > L4 MAND INCISORS > Flashcards

L4 MAND INCISORS Flashcards

1
Q

Universal notitation for mandibular central incisors

A

24 and 25

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2
Q

Universal notitation for mandibular lateral incisors

A

23 and 26

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3
Q

When you mandibular central incisors erupt

A

…

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4
Q

When do mandibular lateral incisors erupt

A

….

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5
Q

When is the root development complete for mand central incisors

A

…

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6
Q

When is the root development complete for mandibular lateral incisors

A

…

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7
Q

When does calcification of mandibular incisor begin

A

…

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8
Q

When is the crown of mandibular incisors completely calcified

A

…

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9
Q

What is an interproximal contact

A

Where two adjacent teeth contact

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10
Q

What are embrasure

A

The spaces/spillway that widen out from the contact

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11
Q

How embrasure spaces do anterior teeth have

A

4
Incisal < gingival
Facial = lingual

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12
Q

How embrasure spaces do posterior teeth have

A

4
Occlusal = gingival
Facial < lingual

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13
Q

What are mandibular incisor used for

A

To incise or cut food

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14
Q

How many mandibular incisors

A

2 central

2 lateral

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15
Q

Mandibular incisor have smaller ________ diameters than any other tooth

A

Mesiodistal

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16
Q

What is the smallest tooth in the mouth

A

Mandibular central incisor

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17
Q

Mandibular incisors are broader _____ than _____

A

Mandibular incisors are broader buccolingually BL than mesiodistally MD

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18
Q

Outline of mand central incisor from facial view

A

Trapezoidal, tapers cervically

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19
Q

Describe incisal outline of mand central incisor from facial view

A

Incisal outline is straight

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20
Q

For mand central incisor the crown is approximately 2x as _____ as _____

A

2x as long IG as wide MD

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21
Q

Meioincisal and distoincisal line angles of mand central incisor from facial view are

A

Shape 90

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22
Q

What is the only symmetrical tooth in the mouth

A

mand central incisor

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23
Q

From facial view of mand central incisor, mesial and distal contact area are in the

A

Incisal 1/3, both are at the same level

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24
Q

In most teeth the _____ area is position more ____ than the ______ (even if it is located in the same 1/3 of the tooth)

A

Distal contact area,
More cervically,
Mesial contact

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25
Q

Any depressions on the labial surface of mand central incisor

A

No depressions, smooth

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26
Q

Describe shape of labial surface of mand central incisor from facial view

A

Labial surface is flat in the incisal 1/3 and become more convex cervically

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27
Q

How many roots of mand central incisor

A

Single root

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28
Q

Describe the shape of the root of a mand central incisor from a facial view

A

Single root, narrow mesiodistally curves distally in some cases

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29
Q

Is the crown or root longer of mand central incisor from facial view

A

Root is longer than the crown length

30
Q

What is the outline of the mand central incisor from the lingual view

A

Trapezoidal

31
Q

Do mand central incisor have a lingual fossa from the lingual view

A

Smooth rounded, slightly concave but no distant fossa

32
Q

Describe the mesial and distal marginal ridges of the Mand central incisor from the lingual view

A

Mesial and distal marginal ridges are only minor elevations

33
Q

The cingulum of the Mand central incisor is much _____ distinct than in the maxillary incisors

A

Much less

34
Q

Are there any development groove on the Mand central incisor from the lingual view

A

No developmental grooves

35
Q

Describe outline of Mand central incisor from mesial view

A

Triangular

36
Q

Labial outline of Mand central incisor from mesial view is

A

Curved - convex

37
Q

The height of contour of the labial surface on the Mand central incisor from the mesial view is in the

A

Cervical 1/3

38
Q

From the mesial view of the Mand central incisor, the incisal edge lies lingual to

A

The line that bisects the tooth

39
Q

CEJ of Mand central incisor curves _____ about 1mm more than on the _____

A

Incisally, distal

40
Q

When worn, the incisal edge of the Mand central incisor angles to the

A

Facial

41
Q

The developmental depression on the distal of root of Mand central incisor is _______ than on the mesial

A

Greater

42
Q

Cervical line of Mand central incisor curves ______ 1mm less than on the _______

A

Incisally, mesial

43
Q

Mand central incisor incisal view, the mesial 1/2 and distal 1/2 of the tooth are almost _____

A

Identical

44
Q

From the incisal view of the Mand central incisor, the incisal edge is at _________ to a line bisecting the crown labiolingually

A

Right angles

45
Q

Mand central incisor from incisal view shoes the tooth converges

A

Lingual the MD width of the labial surface is wider than the MD width of the lingual surface

46
Q

Contact areas of the Mand central incisor from incisal view are centered

A

Faciolingually

47
Q

How many roots in Mand central incisor

A

Single root

48
Q

The root of the Mand central incisor is broader

A

Faciolingually than mesiodistally

49
Q

Developmental depressions of Mand central incisor run

A

Longitudinally down root on mesial and distal

50
Q

Distal depression of Mand central incisor is usually

A

Deeper than the mesial

51
Q

Describe shape of root in cross section of Mand central incisor

A

Root is round/ovoid in cross section with depression on the mesial and distal

52
Q

Describe pulp canal of Mand central incisor

A

Usually one pulp canal

Narrow MD and broad FL

53
Q

Mand lateral incisor or mand central incisor is larger

A

Mand lateral incisor is larger,

Wider MD than central

54
Q

Distal crown height of Mand lateral incisor from facial view is often _______ than the mesial crown height

A

Shorter

55
Q

From facial view of Mand lateral incisor, the incisal edge slopes ______

A

Downward distally

56
Q

Mesioincisal angel of Mand lateral incisor from facial view is

A

Sharp - 90 degrees

57
Q

Distoincisal angle of Mand lateral incisor from facial view is

A

Rounded

58
Q

Mand lateral incisor is ______ MD than central

A

Wider

59
Q

Mesial and distal contacts of the Mand lateral incisor are in the

A

Incisal 1/3

60
Q

Is the mesial or distal contact of the Mand lateral incisor more cervical

A

Distal contact iis more cervical than mesial

61
Q

Describe the lingual view of Mand lateral incisor

A

Same as the lingual surface of the mandibular central incisor

62
Q

The developmental depressions on the root of the Mand lateral incisor are __________ than on the mandibular central incisor

A

Are more pronounced

63
Q

Distal developmental depression of Mand lateral incisors _________than the mesial

A

More marked

64
Q

The distal aspect of Mand lateral incisor is _______ lingually

A

Twisted

65
Q

Can you see the lingual surface (marginal ridge) when viewed from the distal

A

Lingual surface not visible from distal view

66
Q

Incisal edge of the Mand lateral incisor is _______ to the tooth center

A

Lingual

67
Q

Is the Mand lateral incisor symmetrical why or why not

A

No the distal part of crown appears to be curved lingually like as if the distal part is twisted on the root

68
Q

The DF line angle of the Mand lateral incisor is positioned more _____

A

Lingual

69
Q

The root of the Mand lateral incisor is similar to the man central but slightly

A

Larger

70
Q

Shape of root to Mand lateral incisor

A

Ovoid/round

71
Q

Depression on the distal of Mand lateral incisor is ____ than in central

A

Deeper

72
Q

Mand lateral incisor typically have how many canals

A

1 but can have 2

structure basics (18 decks)

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