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oral anatomy - lab practical final > Permanent Tooth anatomy - Incisors > Flashcards

Permanent Tooth anatomy - Incisors Flashcards

1
Q

where is the primate spaces in each arch located

A

mesial to maxillary canine

distal of mandibular canine

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2
Q

why do we have primate spaces

A

because teeth erupting are larger

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3
Q

functions of incisors

A

cut food
articulate speech
support lips (aesthetic)
guide mandible during movement

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4
Q

longest incisor crown

A

maxillary central incisor

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5
Q

how many lobes of development for incisors

A

4 lobes

*3 mamelons and cingulum

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6
Q

from facial view, characteristics of all incisors

A

straight incisal edge

longer incisocervically than MD

taper from contact to CEJ

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7
Q

from facial view of all incisors CEJ curves toward

A

apex

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8
Q

from facial view, all incisors’ roots taper to

A

apex

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9
Q

are roots of incisors longer/shorter than the crown

A

longer

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10
Q

which tooth has prominent cingulum on lingual, offset to the distal

A

maxillary central

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11
Q

eruption time for maxillary central incisor

A

7-8 years old

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12
Q

number of pulp horns and lobes for both central and lateral incisors in both arches

A

3 pulp horns

4 lobes (3 mammelons)

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13
Q

mandibular central incisor eruption time

A

6-7 years old

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14
Q

maxillary lateral incisor eruption time

A

8-9 years old

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15
Q

mandibular lateral incisor eruption year

A

7-8 years old

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16
Q

maxillary central incisor has mesial and distal marginal ridges __ lingual

A

concave

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17
Q

which teeth have disto-lingual twist

A

maxillary centrals incisors and mandibular lateral incisors

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18
Q

incisal edge is lingual to the labio-lingual midpoint

A

mandibular central incisor

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19
Q

mandibular central incisor cross section of root looks like

A

kidney or bow shaped

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20
Q

maxillary lateral incisor has a deep

A

lingual fossa/pit/developmental groove

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21
Q

where is cingulum located on mandibular lateral incisor

A

to the distal

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22
Q

has kidney or bow shaped cross section of root

A

mandibular central and lateral incisors

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23
Q

how many lobes and pulp horns in canines

A

1 pulp horn

4 lobes

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24
Q

maxillary canine eruption time

A

11-12 years old

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25
mandibular canine eruption time
9-10
26
longest tooth, and longest root
maxillary canine
27
__ divides the mesial and distal lingual fossae on maxillary canine
lingual ridge
28
distal contour is highly convex, pinch from labial and incisal view
maxillary canine
29
crown slightly distally inclined
mandibular canine
30
prominent mesial concavity on crown, onto root
maxillary 1st premolar
31
prominent mesial concavity on crown, onto root
maxillary 1st premolar
32
maxillary first premolar number of pulp horns and lobes
2 horns 4 lobes
33
eruption year for maxillary first premolar
10-11
34
mesial groove extends across mesial marginal ridge
maxillary 1st premolar
35
which cusp on maxillary first premolar is slightly taller
buccal cusp is slight taller lingual cusp slightly toward mesial
36
mesial cusp ridge longer than distal cusp cusp ridge +UNIQUE
MAXILLARY FIRST PREMOLAR
37
number of pulp horns and lobes for mandibular first premolar
1-2(lingual cusp may be nonfunctional) horns 4 lobes
38
age of eruption for mandibular first premolar
10-12
39
prominent transverse ridge (snake eyes)
mandibular first premolar
40
mesial marginal ridge shorter, lower than distal, 45 degree angle (almost parallel with buccal cusp ridge
mandibular first premolar
41
large buccal and very small lingual cusp
mandibular first premolar
42
buccal and lingual cusps are equal in height, with short central groove, lingual cusp is toward mesial , less crown taper toward CEJ
maxillary 2nd premolar
43
maxillary 2nd premolar eruption age
10-12
44
maxillary 2nd premolar number of pulp horns and lobes
2 pulp horns 4 lobes
45
buccal cusp very large, lingual cusp toward mesial, could have one or two lingual cusp (mesial would be larger)
mandibular 2nd premolar
46
age eruption for mandibular 2nd premolar
11-12
47
number of pulp horns and lobes for mandibular 2nd premolar
2-3 pulp horns (if 3cusp) 4-5 lobes
48
y shaped occlusal groove pattern
3 cusp mandibular 2nd premolar
49
H or U shaped occlusal groove pattern
2 cusp mandibular 2nd premolar
50
cusp of carabelli usually present on ML
maxillary 1st molar
51
age eruption for maxillary first molar
6-7 years
52
number of pulp horns and lobes of maxillary 1st molar
4 pulp horns (carabelli is nonfunctional) 4-5 lobes
53
crown the same width MD as BL
maxillary 1st molar
54
largest mandibular tooth MD
mandibular 1st molar
55
mandibular 1st molar age eruption time
6-7 years
56
number of pulp horns and lobes for mandibular first molar
5 for both
57
age eruption for maxillary 2nd molar
12-15
58
number of pulp horns and lobes for maxillary 2nd molar
3-4 pulp horns (if DL cusp is not present) 3-4 lobes
59
4 cusps of similar size, occlusal groove pattern looks like a +
mandibular 2nd molar
60
age eruption time for mandibular 2nd molar
11-13
61
number of pulp horns and lobes for mandibular 2nd molar
4 for both
62
largest CEJ cruve for all teeth
mesial of maxillary central incisor (up to 3.5 mm)
63
labial contour of maxillary incisors; central or lateral incisor has more labial curvature ,is more convex,
maxillary lateral is more convex than central
64
distal bend of root tip is more common than mesial bend in which teeth
mandibular incisors
65
runs MD through the posterior teeth in each quadrant (formed bu the alighment of most occlusal fossae with central grooves and concave marginal ridges)
a sulcular groove
66
orthognathic profile jaw is which class
class 1 - 72%
67
mandibular molar is more distal than should be, retrognathic profile
class II - 22%
68
mandibular molar is more mesial than should be, prognathic profile
Class ## - 6%

oral anatomy - lab practical final (7 decks)

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