Specific Teeth Features Flashcards
0
Q
Which tooth has the narrowest gingival embrasures?
A
Maxillary Central Incisors
1
Q
Which tooth has the 2nd greatest crown length?
A
Maxillary Central Incisors
2
Q
Which tooth is most likley to have a divided root canal?
A
Maxillary Central Incisors
3
Q
Which tooth has the most rounded root form?
A
Maxillary Central Incisors
4
Q
Which tooth has the greatest axial inclination?
A
Maxillary Central Incisors
5
Q
Which teeth occludes with mandibular central and lateral incisors?
A
Maxillary Central Incisors
6
Q
Which is the most commonly congenitally missing tooth?
A
Maxillary Lateral Incisors
7
Q
Which is the second most variable tooth form?
A
Maxillary Lateral Incisors
8
Q
Which tooth exhibits Dens-In-Dente most frequently?
A
Maxillary Lateral Incisors
9
Q
Which tooth is most likley to have a palato-radicular groove?
A
Maxillary Lateral Incisors
10
Q
Which tooth has the most concave lingual surface?
A
Maxillary Lateral Incisors
11
Q
Which tooth is most likley to exhibit a peg lateral (maxillary or mandibular lateral incisiors)?
A
Maxillary Lateral Incisors
12
Q
Which maxillary tooth has a cingulum located distal to the midline?
A
Maxillary Central Incisors
13
Q
Which maxillary tooth has a cingulum oriented on the midline?
A
Maxillary Lateral Incisors and Maxillary Canines
14
Q
Which tooth has a root tip which typically dilcerates to the distal?
A
Maxillary Lateral Incisors
15
Q
Which tooth occludes with mandibular lateral incisors and canines?
A
Maxillary Lateral Incisors
16
Q
Which is the longest tooth in the mouth? (Root+Crown)
A
Maxillary Canines
17
Q
Which two teeth are least likely to be extracted?
A
Maxillary and Mandibuar Canines
18
Q
Which tooth has a prominant labial ridge?
A
Maxillary Canines
19
Q
On the Maxillary Canines, is the mesial or distal cusp ridge shorter?
A
Mesial is shorter
20
Q
Which maxillary anterior tooth has an egg shaped pulp chamber?
A
Maxillary Lateral Incisor
21
Q
Which tooth has an oval root which is flattened mesiodistally?
A
Maxillary Canines
22
Q
Which teeth occlude with mandibular canines and first premolars?
A
Maxillary Canines
23
Q
Which is the largest premolar?
A
Maxilary First Premolar
24
Which tooth has a prominent buccal ridge?
Maxilary First Premolar
25
What are the shapes of the Maxilary First Premolar occlusally? Proximally?
Rectangular occlusally
| Trapezoidal proximally
26
Which tooth has a prominent mesial root concavity?
Maxilary First Premolar
27
On the Maxilary First Premolar, is the mesial or distal marginal ridge groove shorter?
Distal buccal cusp ridge is shorter
28
Which is the only premolar with two roots?
Maxilary First Premolar
29
Which teeth occlude with mandibular first and second premolars?
Maxilary First Premolar
30
What is the shape of the maxillary second premolar occlusally? Proximally?
Rectangular oclussally
| Trapezoidal proximally
31
How does the shape of the occlusal table differ between maxillary first and second premolars?
```
first= more angular and asymetrical
second= more ovoid and symetrical
```
32
Does the maxillary first or second premolar have more supplemental grooves?
Maxilary Second Premolar
33
In which maxillary premolar are the cusps of equal height?
Maxilary Second Premolar
34
Which teeth occlude with mandibular second premolars and first molars?
Maxilary Second Premolar
35
What is the largest permanent tooth?
Maxillary First Molar
36
Which is the only tooth that is broader lingually than buccally?
Maxillary First Molar
37
Which is the only tooth with a pronounced distal concavity at the CEJ?
Maxillary First Molar
38
What is the shape of the Maxillary First Molar occlusally? Proximally?
Rhomboid occlusally
| Trapezoidal proximally
39
Which tooth may be associated with a Cusp of Carabelli?
Maxillary First Molar
40
Which tooth's roots are in closest proximity to the maxillary sinus?
Maxillary First Molar
41
Which cusp is the Cusp of Carabelli associated with?
ML
42
What are the three roots of the Maxillary First Molar? Which is the longest? Which is shortest?
MB
DB- shortest
Palatal- longest
43
Which tooth has roots most likely to have a concavity?
Maxillary First Molar
44
How does the morphology of the Maxillary First Molar and Maxillary Second Molar differ?
The Maxillary Second Molar is smaller and more angular. It also has a longer root trunk.
45
Which tooth is second more likely to have cervical enamel projections?
Maxillary Second Molar
46
Which tooth is closest to the outlet of Stenson's Duct?
Maxillary Second Molar
47
What shape is the Maxillary Second Molar occlusally? Proximally?
Rhomboidal occlusally, or heart shaped with the DL cusp s absent
Trapezoidal proximally
48
Describe the roots of the Maxillary Second Molar
Closer together than those of the maxillary first molar and typically turned distally
49
Which molar has roots which curve toward one another like the handles of pliers? Which roots are these?
Maxillary First Molar, the MB and DB roots
50
Which teeth have the most variable crown shape?
Maxillary and Mandibular Third Molars
51
Which is the shortest permanent tooth?
Maxillary Third Molars
52
Which teeth are most likley to have enamel pearls?
Maxillary and Mandibular Third Molars
53
Describe the crown morphology of Maxillary Third Molars
tapers lingually
3 cusps MB, DB, lingual
DB is often absent
54
Describe the root morphology of Maxillary Third Molars
3 roots, often fused
55
Which is the smallest permanent tooth?
Mandibular Central Incisors
56
Which tooth is most resembles its counterpart?
Mandibular Central Incisors, (they are extremely symmetrical in terms of placement of the cinglulum, sharpness of line angles and prominence of marginal ridges)
57
Which is the only anterior tooth to occlude with only one tooth?
Mandibular Central Incisors (the Maxillary Central Incisor)
58
Describe the crown morphology of Mandibular Central Incisors
The laterals are less symmetrical and slightly larger than the centrals. The mesial marginal ridge is longer than the distal and the incisal edge is twisted distolingually. The cingulum is slightly distal.
59
Describe the root morphology of Mandibular Central Incisors
Mesial and Distal concavities giving it an hourglass shape
60
Which tooth has the longest crown?
Mandibular Canines
61
How do the Maxillary and Mandibular Canines differ?
The lingual ridge of the mandibular is less prominent
62
Describe the crown morphology of the Mandibular Canines
cusp tip is toward the lngual, the mesial cusp ridge is shorter than the distal cusp ridge, the cingulum is positioned distally
63
Describe the root morphology of the Mandibular Canines
Oval roots flattened mesiodistally with a possible mesial depression and possible bifurcation
64
Which is the smallest permanent premolar?
Mandibular First Premolar
65
What is the crown shape of the Mandibular First Premolar occlusally? Proximally?
Square, occlusally
| Rhomboidal, proximally
66
Which is the only posterior tooth with an cclusal plane tilted lingually?
Mandibular First Premolar
67
Describe the crown morphology of Mandibular First Premolar
mesial marginal ridge is shorter than the distal marginal ridge, no central groove, prominent transverse ridge
68
Between which two teeth is the gingival papilla the shortest?
Between the first and second mandibular premolars
69
Which tooth can have three configurations? What are they?
Mandibular Second Premolar
| Y, H and U
70
What is the shape of the Mandibular Second Premolar occlusally? Proximally?
Square oclusally
| rhomboidal, proximally (tilted lingually)
71
How do the Mandibular First and Second Premolars differ?
The first premolar has a much smaller lingual cusp and the second has a much larger one giving it a more square appearance
72
Describe the Y configuration. Which tooth does it apply to?
Three cusps, two on the lingual, central pit
| Mandibular Second Premolar
73
Describe the H configuration. Which tooth does it apply to?
Two cusps, B and L with a short central groove
| Mandibular Second Premolar
74
Describe the U configuration. which tooth does it apply to?
Two cusps, B and L with a crescent shaped central groove
| Mandibular Second Premolar
75
Is the root longer or shorter on the Mandibular Second Premolar compared to the First Premolar?
Second is longer
76
Which tooth has a root closest to the mental foramen?
Mandibular Second Premolar
77
Which is the largest mandibular tooth?
Mandibular First Molar
78
Which tooth has two transverse ridge, three pitted fossae, two buccal grooves and a short lingual groove?
Mandibular First Molar
79
Describe the root morphology of the Mandibular First Molar
Usually widely separated, mesial root broadest buccolinguallly, both roots with concavities, especially on the mesial
80
Which molar is most symmetrical?
Mandibular Second Molar
81
Which tooth is most likely to have cervical enamel projections?
Mandibular Second Molar
82
Describe the crown shape of the Mandibular Second Molar occulsally. Proximally?
```
Rectangular occlusally
Rhomboidal proximally (tilted lingually)
```
83
Describe the root morphology of the Mandibular Second Molar
Roots are closer together than the first molar with distal inclination
84
Which tooth is most likely to exibit enamel pearls?
Mandibular Third Molar
85
Describe the root morphology of the Mandibular Third Molar
Roots are usually short, distally inclined, and often fused. The root trunk is often also distally inclined
86
Describe the crown morphology of the Mandibular Third Molar
Extremely variable with an irregular groove pattern. It as a bulbous crown that is tapered distally.
87
Name some features that distinguish the mesial and distal sides of maxillary canines
the distal half is more convex
the curvature of the cervical line is greater on the mesial
the distal cusp ridge is longer
