Maxillary Incisors Flashcards

1
Q

From a facial aspect, what is the shape of the crown outline of a maxillary central incisor:

A

Trapezoid

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2
Q

From a facial aspect of a maxillary central incisor, the anatomical crown is:

A

Longer than it is wide

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3
Q

From a facial aspect of a maxillary central incisor, the mesial outline of the tooth is relatively:

A

Straight, only slightly convex

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4
Q

From a facial aspect of a maxillary central incisor, the height of the mesial surface is in the:

A

Incisal 1/3

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5
Q

From a facial aspect of a maxillary central incisor, the distal outline is more _____ than the mesial outline

A

Convex

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6
Q

From a facial aspect of a maxillary central incisor, the height of contour on the distal is at the:

A

Junction of middle & incisal 1/3s

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7
Q

From this facial aspect, label each side of the maxillary central incisor a mesial or distal

A

Left- distal
Right- mesial

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8
Q

From a facial aspect of a maxillary central incisor, the incisal outline is:

A

Straight

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9
Q

On newly erupted maxillary central incisors _____ are commonly present

A

Mamelons

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10
Q

One of three rounded protuberances found on the incisal edge of newly erupted incisors:

A

Mamelon

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11
Q

From a facial aspect of a maxillary central incisor, the mesioincisal angle is a:

A

Right angle

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12
Q

From a facial aspect of a maxillary central incisor, the distoincisal angle is:

A

More rounded than the mesioincisal angle

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13
Q

Looking at the facial aspect of the maxillary central incisor- label the distoincisal & mesioincisal line angles:

A

Left- distoincisal
Right- mesioincisal

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14
Q

Junction of two tooth surfaces

A

Line angle

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15
Q

Junction of three tooth surfaces

A

Point angle

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16
Q

The red lines represent

A

Mesiofacial & distofacial line angles

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17
Q

From a facial aspect of a maxillary central incisor, the cervical line (CEJ) is curved:

A

Apically

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18
Q

From a facial aspect of a maxillary central incisor, what anatomical features are present:

A

Developmental depressions & ridges

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19
Q

How many roots does a maxillary central incisor contain:

A

1

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20
Q

From a facial aspect of a maxillary central incisor, the shape of the root is:

A

Cone shaped, blunt apex

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21
Q

In a maxillary central incisor- describe the root length compared to crown length

A

Root is usually longer than the crown

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22
Q

From a facial aspect of a maxillary central incisor, the apex of the root is slightly:

A

Distal to the long axis of the tooth

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23
Q

A line extending through the center of the tooth lengthwise:

A

Long axis

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24
Q

A linear elevation on the surface of a tooth

A

Ridge

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25
Q

Ridges are named according to:

A

Their location

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26
Q

A lingual fossa is bounded by:

A

Incisal edge
Mesial/distal marginal ridges
Cingulum

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27
Q

Occasionally present on the lingual aspect of the maxillary central incisor:

A

Lingual pit

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28
Q

Bulbous convexity on the cervical third of the lingual surface on an anterior tooth:

A

Cingulum

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29
Q

A small pinpoint depression in the depths of developmental processes:

A

Pit

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30
Q

On a maxillary central incisor from a lingual aspect, what shape is the root

A

Cone shaped

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31
Q

On a maxillary central incisor from a lingual aspect, the root tapers:

A

Slightly distally

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32
Q

On a maxillary central incisor from a lingual aspect, the crown & root taper to:

A

Lingual

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33
Q

On a maxillary central incisor from a lingual aspect the CEJ is curved _____ toward the _____

A

Convex
Root

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34
Q

On a maxillary central incisor from a mesial aspect, the shape of the crown is:

A

Triangular or wedge shaped

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35
Q

On a maxillary central incisor from a mesial aspect, the facial outline is ______ while the lingual outline is _____

A

Slightly curved
Concavoconvex

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36
Q

On a maxillary central incisor from a mesial aspect the incisal edge is:

A

Flat

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37
Q

Describe the red and purple lines:

A

Red: concavoconvex
Purple: slightly convex (curved)

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38
Q

On a maxillary central incisor from a mesial aspect the tooth is bisected longitudinally with the incisal edge:

A

On the line or slightly lingual (rarely facial)

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39
Q

On a maxillary central incisor from a mesial aspect, the incisal surface slopes:

A

Slightly lingual

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40
Q

On a maxillary central incisor from a mesial aspect, what is the root shape:

A

Cone with blunt apex

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41
Q

On a maxillary central incisor from a mesial aspect, what is unique:

A

Mesial-Cervical line has the greatest amount of curvature from any tooth in the mouth

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42
Q

On a maxillary central incisor from a mesial aspect, the cervical line is ______ incisally

A

Convex

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43
Q

On a maxillary central incisor from a mesial aspect, the ____ curvature is greater than the ____ curvature

A

Mesial; distal

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44
Q

On a maxillary central incisor compare the thickness of the tooth from a distal aspect to the mesial aspect:

A

Crown looks thicker in the incisal 1/3 from a distal aspect

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45
Q

On a maxillary central incisor the curvature of the cervical line is ____ on the distal than it is on the mesial

A

Less

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46
Q

From a distal aspect of a maxillary central incisor, the CEJ curves ______ in an incisal direction

A

Convexly

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47
Q

Label mesial & distal

A

Left- distal
Right- mesial

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48
Q

On a maxillary central incisor from a incisal aspect what shape is seen:

A

Triangle

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49
Q

On a maxillary central incisor from an incisal aspect, the tooth is wider ____ than _____

A

Facially than lingually

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50
Q

On a maxillary central incisor from a incisal aspect, the facial surface is:

A

Broad & flat

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51
Q

On a maxillary central incisor from a incisal aspect, the lingual surface is:

A

Narrow & curved

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52
Q

On a maxillary central incisor from a incisal aspect, the incisal edge bisects the:

A

Faciolingual diameter

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53
Q

Label the facial and lingual sides:

A

Top- facial
Bottom- lingual

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54
Q

On a maxillary central incisor from a incisal aspect, the distofacial line angle is:

A

Rounded

55
Q

On a maxillary central incisor from a incisal aspect, the mesiofacial line angle is:

A

Prominent

56
Q

On a maxillary central incisor from a incisal aspect, the apex of the cingulum lies:

A

Slightly distal to the bisecting line

57
Q

On a maxillary central incisor from a incisal aspect, the point of convexity of the cingulum is _____ to the center of the lingual surface

A

Distal

58
Q

On a maxillary central incisor from a incisal aspect, the mesial & distal contact points are centered on the proximal surfaces:

A

Labiolingually

59
Q

The surface of a tooth that adjoins the surface of another tooth in the same arch (example: mesial & distal surfaces of adjacent teeth)

A

Proximal surface

60
Q

On a maxillary central incisor from a incisal aspect, the _____ & _____ line angles are more prominent than the _____ & _____ line angles

A

MF & DF
ML & DL

61
Q

On a maxillary central incisor from a incisal aspect, the ____ line angle is more obtuse & rounded than the ____ line angle

A

DF
MF

62
Q

On a maxillary central incisor from a incisal aspect, what anatomical features can be seen on the labial surface:

A

Developmental depressions & ridges

63
Q

Label the line angles

A

1- DF line angle
2- DL line angle
3- ML line angle
4- MF line angle

64
Q

On a maxillary central incisor the crown is _____ than it is _____

A

Longer; wide

65
Q

On a maxillary central incisor the root is ______ compared to the crown

A

Longer

66
Q

On a maxillary central incisor, the crown is wider _____ than _____

A

Mesiodistally; faciolingually

67
Q

The maxillary central incisor develops from:

A

Four lobes

68
Q

Name the four lobes the maxillary central incisor develops from:

A

Mesial
Distal
Labial
Lingual

69
Q

What lobe of the maxillary central incisor forms the mesial marginal ridge & the mesial part of labial surface

A

Mesial lobe

70
Q

What lobe of the maxillary central incisor forms the distal marginal ridge & distal part of labial surface

A

Distal lobe

71
Q

What lobe of the maxillary central incisor forms a slightly prominent ridge

A

Labial lobe

72
Q

What lobe of the maxillary central incisor forms the cingulum

A

Lingual lobe

73
Q

Label the lobes of the maxillary central incisor

A

1- Distal lobe
2- Labial lobe
3- Mesial lobe
4- Lingual lobe

74
Q

Number of pulp canals in maxillary central incisor

A

Single canal

75
Q

From the facial view of a maxillary central incisor, the pulp chamber has:

A

Three pulp horns

76
Q

From the facial view of a maxillary central incisor, the three pulp horns:

A

Disappear with age

77
Q

From a cross sectional view of a maxillary central incisor, what shape does the pulp chamber take on:

A

Triangular

78
Q

From a cross sectional view of a maxillary central incisor, what walls make up the triangular shape of the pulp canal:

A

Mesial
Distal
Facial

79
Q

From a cross sectional view of a maxillary central incisor pulp chamber, the ____ wall is longer than the ____

A

Mesial
Distal

80
Q

Label the type of section of the maxillary central incisor root chambers

A

A- Mesiodistal section
B- Transverse section
C- Labiolingual section

81
Q

Label the three walls comprising this transverse section of the maxillary central incisor root

A

1- Facial
2- Mesial
3- Distal

82
Q

Label each view of the maxillary central incisor (from left to right):

A

Facial, Lingual, Incisal, Mesial, Distal

83
Q

Number is assigned to the maxillary right lateral incisor:

A

7

84
Q

Number assigned to the maxillary left lateral incisor:

A

10

85
Q

Age the permanent maxillary lateral incisors erupt:

A

8-9 years of age

86
Q

Maxillary lateral incisors supplement the _____ in function:

A

Central incisors

87
Q

An interesting characteristic of the maxillary lateral incisors is that:

A

They vary in form more than any other tooth in mouth except molars

88
Q

An interesting fact regarding the maxillary lateral incisor is that they are the most frequently:

A

Congenitally absent anterior tooth

89
Q

The maxillary lateral incisors are similar in shape to the:

A

Maxillary central incisors

90
Q

Compared to the maxillary central incisors, the maxillary lateral incisors are:

_____ in all dimensions except for ____

A

Smaller; root length

91
Q

Compared to the maxillary central incisors, the maxillary lateral incisors are: more ______

A

Rounded

92
Q

Compared to the maxillary central incisors, the maxillary lateral incisors contain more pronounced _____ & _____ on the lingual surface

A

Mesial & distal marginal ridges

93
Q

Compared to the maxillary central incisors, the maxillary lateral incisors, the lingual fossa is:

A

Deeper

94
Q

From a facial aspect of the maxillary lateral incisor, the shape the outline takes on is:

A

Trapezoidal

95
Q

From a facial aspect of the maxillary lateral incisor, the incisal outline is more _____ than on the maxillary central incisor

A

Rounded

96
Q

From a facial aspect of the maxillary lateral incisor, the mesial outline is:

A

Slightly convex

97
Q

From a facial aspect of the maxillary lateral incisor, the mesial height of contour is at:

A

Junction of middle & incisal 1/3s

98
Q

From a facial aspect of the maxillary lateral incisor, the mesioincisal angle is:

A

Slightly rounded

99
Q

From a facial aspect of the maxillary lateral incisor, the distal outline is more ____ than in a maxillary central incisor

A

Rounded

100
Q

From a facial aspect of the maxillary lateral incisor, the distal height of contour is:

A

In middle 1/3

101
Q

Compare the MI and DI angles of a maxillary lateral incisor:

A

Distoincisal angle is more rounded

102
Q

Compare the degree of curvature of the distoincisal line angles between the maxillary central & lateral incisors

A

DI angle is more rounded in the maxillary lateral incisors

103
Q

From a facial aspect of the maxillary lateral incisor, the labial surface is more _____ than it is in the maxillary central incisor

A

Convex

104
Q

From a facial aspect of the maxillary lateral incisor, the root is ______ and ______ or ______ than the central incisor & usually tapers _____

A

Pointed
As long or longer
Distally

105
Q

From a lingual aspect of the maxillary lateral incisor, what shape does the outline take on:

A

Trapezoidal

106
Q

From a lingual aspect of the maxillary lateral incisor, the lingual fossa is _____ & often contains a ____

A

Deeper
Lingual pit

107
Q

From a lingual aspect of the maxillary lateral incisor, what anatomical features are prominent:

A

Mesial & distal marginal ridges

108
Q

From a lingual aspect of the maxillary lateral incisor a pronounced ______ is present

A

Cingulum

109
Q

From a lingual aspect of the maxillary lateral incisor, deep ___ are present

A

Developmental grooves

110
Q

From a lingual aspect of the maxillary lateral incisor, the lingual developmental groove is on the ____ of the ____

A

Distal of Cingulum

111
Q

Deep groove present distal to the cingulum of the maxillary lateral incisor

A

Lingual developmental groove

112
Q

From a lingual aspect of the maxillary lateral incisor, the tooth tapers:

A

To the lingual

113
Q

From a mesial aspect of the maxillary lateral incisors the crown take on a _____ shape

A

Traingular

114
Q

From a mesial aspect of the maxillary lateral incisors, the labial outline is:

A

Slightly convex

115
Q

From a mesial aspect of the maxillary lateral incisors, the lingual outline is:

A

Concavo-convex

116
Q

From a mesial aspect of the maxillary lateral incisors, the height of controur on the facial & lingual surface is located in the:

A

Cervical 1/3

117
Q

From a mesial aspect of the maxillary lateral incisors, the incisal edge is angled:

A

Lingually

118
Q

From a mesial aspect of the maxillary lateral incisors, the cervical curvature curves _____ but less than the maxillary central incisor

A

Incisally

119
Q

From a mesial aspect of the maxillary lateral incisors, the root is ____ shaped & tapers ____

A

Cone
Apically

120
Q

From a mesial aspect of the maxillary lateral incisors, the line through the center of the root:

A

Bisects the incisal surface

121
Q

From a distal aspect of a maxillary lateral incisor, the outline takes on a ____ shape

A

Triangular

122
Q

From a distal aspect of a maxillary lateral incisor, the tooth appears ____ than the mesial view

A

Wider

123
Q

From a distal aspect of a maxillary lateral incisor, the distal of the tooth is curved ___ to conform to a ____ shape

A

Lingually
Arch

124
Q

From a distal aspect of a maxillary lateral incisor, the cervical line curvature is 1mm less than the ____ curvature

A

Mesial

125
Q

From a distal aspect of a maxillary lateral incisor, a ____ may be present on the distal of the crown extending down the root

A

Developmental groove

126
Q

From an incisal aspect of a maxillary lateral incisor, the contour is more ____ resulting in an ____ shape

A

Convex
Ovoid

127
Q

From an incisal aspect of a maxillary lateral incisor, the crest of the cingulum is slightly _____ to the center of the tooth

A

Distal

128
Q

From an incisal aspect of a maxillary lateral incisor, the _____ line angle is more rounded than the _____ line angle

A

DL
ML

129
Q

Both the DL and ML line angles of the maxillary lateral incisors are ______ compared to the maxillary central incisors

A

More rounded

130
Q

From an incisal aspect of a maxillary lateral incisor, the mesial & distal contact areas are centered:

A

Labiolingually

131
Q

Number of pulp canals found in the maxillary lateral incisors

A

Single canal

132
Q

From a facial view of the maxillary lateral incisor, how many pulp horns are present

A

Two

133
Q

What shapes can the cross sectional view of the maxillary lateral incisors take on:

A

Triangular, round, ovoid

134
Q

Label the views of the maxillary lateral incisors (from left to right)

A

Facial, lingual, incisal, mesial distal