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Dental Morphology > Maxillary Incisors > Flashcards

Maxillary Incisors Flashcards

1
Q

What is the general shape of maxillary central incisor?

A

trapezoid

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2
Q

How long is the crown of maxillary central incisor from incisal edge to gingiva?

A

10-11 mm

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3
Q

How wide is the maxillary central incisor at the widest point?

A

8-9 mm

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4
Q

How wide is the maxillary central incisor at the CEJ?

A

6-7 mm

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5
Q

Is the maxillary central incisor longer than it is wide?

A

yes

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6
Q

What is the height of convexity of the mesial surface of the maxillary central incisor?

A

incisal 1/3 of tooth

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7
Q

Where is the mesial contact of the maxillary central incisor?

A

incisal 1/3

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8
Q

What is the heigh of convexity of the distal surface of the maxillary central incisor?

A

junction of middle and incisal 1/3

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9
Q

Where is the distal contact of the maxillary central incisor?

A

junction of middle and incisal 1/3

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10
Q

What is mesioincisal angle of maxillary central incisor?

A

right angle

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11
Q

What is distoincisal angle of maxillary central incisor?

A

more rounded than mesioincisal

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12
Q

What is a line angle?

A

the meeting of two tooth surface

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13
Q

What is a point angle?

A

junction of three tooth surface

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14
Q

How many roots are there for a maxillary central incisor?

A

1

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15
Q

How long is the root of the maxillary central incisor?

A

13mm

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16
Q

Shape of the root of the maxillary central incisor:

A

cone shaped with blunt apex

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17
Q

What is a ridge?

A

linear elevation on the surface of the tooth and is named according to the location

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18
Q

Which direction does the root of the maxillary central incisor taper?

A

slightly distally

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19
Q

Shape of the maxillary central incisor from the mesial view:

A

triangular

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20
Q

The facial outline of the maxillary central incisor from the mesial aspect is…

A

slightly curved, flat incisally

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21
Q

The lingual outline of the maxillary central incisor from the mesial aspect is…

A

concavo-convex

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22
Q

Is the incisal edge in the midline of the maxillary central incisor?

A

yes
(sometimes can be slightly facial)

23
Q

What is the greatest amount of curvature of any tooth in the mouth?

A

the mesial cervical line of the maxillary central incisor

24
Q

Which direction does the incisal surface of the maxillary central incisor slope from the mesial view?

A

toward the lingual

25
Q

What does the maxillary central incisor look like form the incisal aspect?

A

triangualr

26
Q

Is the maxillary central incisor wider facially or lingually?

A

facially

27
Q

Are the DF/MF or the ML/DL line angles more prominent on a maxillary central incisor?

A

DF/MF

28
Q

Crown length of maxillary central incisor:

A

10-11mm

29
Q

Crown width of maxillary central incisor:

A

8.5mm

30
Q

Labiolingual width of maxillary central incsior:

A

7 mm

31
Q

Root length of maxillary central incisor:

A

13 mm

32
Q

How many lobes form the maxillary central incisor?

A

4

33
Q

What does the mesial lobe of the maxillary central incisor form?

A

mesial marginal ridge and mesial part of labial surface

34
Q

What does the distal lobe of the maxillary central incisor form?

A

distal marginal ridge and distal part of labial surface

35
Q

What does the labial lobe of the maxillary central incisor form?

A

slightly prominent ridge

36
Q

What does the lingual lobe of the maxillary central incisor form?

A

forms the cingulum

37
Q

How many pulp canals of the maxillary central incisor?

A

1

38
Q

How many pulp horns in a maxillary central incisor?

A

3

39
Q

What numbers are the maxillary lateral incisors?

A

7 and 11

40
Q

What tooth is the most various in size?

A

maxillary lateral incisor

41
Q

What is the most frequently congenitally absent anterior tooth?

A

maxillary lateral incisor

42
Q

What is the shape of the facial aspect of maxillary lateral incisor?

A

trapezoidal

43
Q

Where is the mesial height of contour of the maxillary lateral incisor

A

junction of the middle and incisal 1/3

44
Q

Is the mesioincisal angle of maxillary lateral incisors 90 degrees?

A

no, it is slightly more rounded

45
Q

Where is the distal height of contour of the maxillary lateral incisors?

A

middle 1/3

46
Q

What is the shape of the root of maxillary lateral incisors?

A

root is pointed, longer than central incisor root, and tapers distally

47
Q

What is the shape of the maxillary lateral incisor from the lingual view?

A

trapezoidal

48
Q

What is the shape of the maxillary lateral incisor from the mesial view?

A

triangular

49
Q

What is the shape of the maxillary lateral incisor from the distal aspect?

A

triangular

50
Q

How does the maxillary lateral incisor add to the arch?

A

the distal end is curved lingually to round in in the arch

51
Q

Where is the crest of the cingulum of the maxillary lateral incisor?

A

slightly distal to the center of the tooth

52
Q

Is the DL or ML line angle more rounded in the maxillary lateral incisor?

A

the DL line angle

53
Q

How many pulp canals in maxillary lateral incisor?

A

1

54
Q

How many pulp horns in a maxillary lateral incisor?

A

2

Dental Morphology (7 decks)

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