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D1 Fall > RD 1: Incisors and Canines > Flashcards

RD 1: Incisors and Canines Flashcards

(107 cards)

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1
Q

function of anterior teeth

A

cut food, lip support, maintain esthetics

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2
Q

functions of incisors

A

cut food, speech, esthetics

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3
Q

cutting action of incisors

A

slice, chop, cut

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4
Q

cutting action of canines

A

tear, shear, rip

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5
Q

Permanent Anterior Eruption

A

-centrals always before lateral
-mand central/lateral before max central/lateral
-canines erupt last after central/lateral incisors

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6
Q

ridges on incisors

A

mesial marginal ridge and distal marginal ridge

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7
Q

incisal edges on incisors

A

labial incisal edge and lingual incisal edge
(only maxillary incisors)

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8
Q

what kind of fossa found on incisors and what surface

A

lingual fossa (2 maxillary, 1 mandibular)

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9
Q

developmental lobes on incisors (facial view)

A

mesial, middle, distal

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10
Q

what separates developmental lobes

A

developmental depressions (2 lines)

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11
Q

4th lingual lobe on incisor

A

cingulum

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12
Q

describe the incisor crown’s incisal egde

A

relatively straight or slightly curved

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13
Q

shape of incisors

A

-relatively rectangular
-longer incisogingivally than wide mesiodistally

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14
Q

incisor mesioincisal angles are more ______ than distoincisal angles

A

sharper (acute)

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15
Q

incisor crown contact areas on mesial surface are located where

A

incisal third

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16
Q

incisor crown contact areas on distal surface are located ……

A

more cervical than mesial
-EXCEPT : on distal of mandibular central (level contact)

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17
Q

from facial view, incisor roots become _____ from cervical line to apex

A

more narrow, taper

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18
Q

incisor roots are ______ faciolingually than mesiodistally

A

wider
-EXCEPT: maxillary central incisors (widths are equal)

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19
Q

incisor roots bend in apical third except which teeth

A

maxillary central incisor roots
-unlikely to bend
-more likely to bend distal

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20
Q

compare sizes of mandibular vs maxillary incisors

A

mandibular generally smaller than maxillary

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21
Q

mandibular incisor crowns are wider ______ while maxillary incisors are wider _____

A

faciolingually, mesiodistally

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22
Q

mandibular incisor crowns have ______ lingual surfaces with ________ anatomy than maxillary incisors

A

smoother, less prominent

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23
Q

compare length of mandibular and maxillary incisor roots in proportion to their crowns

A

mandibular roots are longer in proportion to their crowns than maxillary roots

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24
Q

which crowns are more symmetrical (facial)

A

mandibular incisors

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25
which have larger cingulum
maxillary incisors
26
compare maxillary central incisors to mandibular
larger in all dimensions
27
maxillary central is the _____ of all the incisors
widest
28
maxillary central is narrowest in _____ third and widest in the ______ third
cervical, incisal
29
max lateral incisor is _______ mesiodistally to the max central incisor, while the root of the max lateral is _______ than the max central
narrower, longer
30
max central is shaped like a
trapezoid
31
max central is slightly longer _______ than ______
incisocervically than mesiodistally
32
imbrication lines
small parallel lines that are formed due to arrangement of enamel prisms (facial view) -max central
33
on max central incisor (lingual view) compare lengths of marginal ridges
mesial marginal ridge is longer than distal marginal ridge
34
on max central (lingual view), the cingulum is offset to which side
distal
35
when looking at max central incisor from insical view, compare the two surfaces
facial slightly convex, lingual more convex
36
on max central incisor (proximal view), where does the incisal edge lie compared to the root axis line
incisal edge is on or facial to root axis line
37
on max central incisor (proximal), which surface exhibits that greatest depth of curvature
mesial exhibits greater depth of curvature than any other surface
38
difference between max central and max lateral
max lateral is more round than max central
39
what types of variation can max lateral incisors display
-peg lateral -agenesis (missing) -pits -grooves
40
max lateral has a ________ mesioncisal angle than max central
more rounded
41
max lateral have mesial and distal marginal ridges that are more _______ than max central
prominent
42
max lateral have lingual fossa that is ______ than max central
deeper or more pronounced
43
more likely to find _____ and _____ on cingulum of max lateral than max central
pits and grooves
44
linguogingival groove (fissure) may cross ________ onto cementum
cingulum
45
max lateral incisors (incisal view) exhibit more convexity ______ and ______ than max central incisors
labially and lingually
46
on max lateral incisors (insical view) cingulum is placed ____________ compared to central incisor
nearly centered mesiodistally
47
mandibular incisors
simplest and least variable teeth -smallest permanent teeth -resemble each other the most
48
compared to max incisors, mand incisor crowns are _________ incisocervically and ___________ mesiodistally
longer, narrower
49
mand central incisors has the narrowest ______________ dimension of any tooth
mesiodistal
50
mand central incisors have the __________ crown size of any permanent tooth
smallest
51
key feature of mandibular central incisors
crown symmetry (twins)
52
describe mesioincisal angle of mandibular central incisors
sharp compared to other incisors
53
describe mandibular central incisors from a lingual view
-relatively smooth -slight concavity for lingual fossa -indistinct marginal ridges -small cingulum
54
mandibular central incisors from a proximal view have a facial surface _________
uniformly convex
55
on a mandibular central incisor, incisal edge lies __________
on or lingual to root axis line
56
(incisal view) compared to the max central incisor, the mand central incisor is wider ________ than __________
labiolingually, mesiodistally
57
mand lateral incisors resemble mand central but are more ______ and ____
rounded, slightly larger
58
on a mandibular lateral incisor, the disto-incisal angle is more _________ than the mandibular central
rounded
59
lingual view of a mandibular lateral incisor is similar to mand central but the cingulum is more ___________
offset to distal
60
promixal view on mandibular lateral incisors is similar to mand central but, when looking at the mesial surface, ___________
you can see the distal incisal edge in the background because it turns
61
insical edge on mandibular lateral incisors curves toward ________ and the cingulum is displaced toward the ___________
lingual, distal -give it the appearance of being slightly twisted
62
mesio-incisal angle is more ________, while distal-incisal angle is more_______
square, rounded
63
contact points on max central (mesial and distal)
mesial= incisal distal= juntion b/w incisal and middle
64
contact points on max lateral (mesial and distal)
mesial= junction b/w incisal and middle distal= middle
65
contact points on max canine (mesial and distal)
same as max lateral mesial = junction b/w incisal and middle distal = middle
66
contact points on mand central (mesial and distal)
mesial = incisal distal = incisal
67
contact points on mand distal (mesial and distal)
same as mand central mesial = incisal distal = incisal
68
contact points on mand canine (mesial and distal)
mesial = incisal distal = middle
69
all teeth have facio-lingual contact points in the _______
middle third
70
overjet
normal bite occurs, the horizontal distance between incisal edges on max and mand teeth is normal
71
overbite
normal bite occurs, the vertical distance between incisal edges on max and mand teeth is normal
72
rank incisal embrasures from largest to smallest
1) b/w max canine and max lateral 2)b/w mand canine and mand lateral 3)b/w max lateral and max central 4) b/w max centrals 5) b/w mand lateral and central 6) b/w mand centrals
73
anterior teeth with centralized cingulum
mand central, max canine, max lateral
74
anterior teeth with distal cingulum
-max central -mand canine -mand lateral
75
anterior tooth with the tallest crown
mandibular canine
76
widest anterior tooth
maxillary central incisor
77
smallest anterior tooth
mandibular central incisiors
78
first succedaneous tooth
mandibular central incisor (replaces tooth)
79
smallest facial and incisal embrasure
mandibular central incisor
80
functions of canines
-support the lips and facial muscles -cute, pierce, shear food -provide protective mechanism when max and mand canines overlap (canine guidance)
81
longest of permanent teeth
canines
82
which teeth are the last to be lost from dental diseases
canines
83
large, long root of canines allows ________
good anchorage for abutments
84
2 types of fossa on canines
distal lingual and mesial lingual
85
2 types of cusp ridges on canine
distal cusp ridge and mesial cusp ridge
86
_______ canine crown is longer than the _______ canine crown
mandibular, maxillary
87
canines are the only teeth with a ______ ridge
labial
88
max and mand canine crowns have greater measurements ________ than _________
labiolingually, mesiodistally
89
on canines, the ________ contact area is more cervical than the ________ contact area
distal, mesial
90
canine eminence
projection of bone that houses root of canine (in gums)
91
what seperates mesial and distal fossae
lingual ridge
92
cingulum on maxillary canine is
large, centered
93
on a mx canine, the mesial marginal ridge is ________ than the distal marginal ridge
longer
94
on a max canine, the cusp tip is _____ to the root axis line
labial
95
the root of the max canine has what features (proximal view)
mesial and distal depressions
96
max canine (incisal view) is wider ________ than ________
labiolingually , mesiodistally
97
on a mand canine (labial view) the mesial side is _______-
flat, in line with mesial side of root
98
mandibular canine is __________ than the maxillary canine
slimmer
99
on a mand canine, the ridges and fossa are _______
not prominent
100
how many roots does a mandibular canine have
1, but can have 2
101
on a mand canine, the incisal ridge lies ______ to the root axis line
lingual
102
proximally, a mand canine has _________ crown-root convexity on facial surface
almost continuous
103
on a mand canine, (incisal view), the ______ dimension is larger than ________
labiolingual, mesiodistal
104
the mandibular canine has _______ anatomy than the max canine
less obvious
105
what is the widest anterior tooth facio-lingually
canine
106
on a max canine _____ cusp slope is shorter than the _____ cusp slope
mesial, distal
107
which anterior tooth is most likely to have a bifurcated root
mandibular canine

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