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DAOB > DA Exam 2 > Flashcards

DA Exam 2 Flashcards

1
Q

Mandibular First Premolars are what teeth numbers?

A

21 and #28

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2
Q

Mandibular Second Premolars are what teeth numbers?

A

20 and #29

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3
Q

Premolar teeth are ALWAYS preceded by _______

A

Premolar teeth are always preceded by deciduous molars

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4
Q

Which premolar tooth may present with two lingual cusps?

A

The lower second premolar

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5
Q

The mandibular first premolar is developed by _____ lobes

A

4 lobes

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6
Q

The mandibular second premolar is developed by _____ lobes

A

5 lobes

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7
Q

Which tooth has the smallest and most ill-defined lingual cusp of any of the premolars?

A

Mandibular first premolar

*21 and 28

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8
Q

What is a distinctive feature of mandibular first premolars?

A

The mesiolingual developmental groove

21 and 28

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9
Q

Mandibular first premolars have a ______ shape from a proximal view

A

Rhomboidal

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10
Q

In mandibular first premolars, from a proximal aspect, the large buccal cusp tip is _______ over the root tip

a. mesially centered
b. centered towards the distal
c. nearly centered
d. there is no large buccal cusp tip

A

c. nearly centered over the root tip

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11
Q

Which of the following is true regarding mandibular first premolars

a. The distal marginal ridge is more cervical than the mesial marginal ridge
b. the mesial marginal ridge is more cervical than the distal marginal ridge

A

b. The mesial marginal ridge is more cervical than the distal marginal ridge

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12
Q

The occlusal outline form for mandibular first premolars is ______

a. square
b. trapezoidal
c. diamond
d. oval

A

Occlusal outline for mandibular first premolars=DIAMOND

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13
Q

“snake eyes” are associated with which teeth?

A

Mandibular first premolars
21 and 28

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14
Q

Which of the following is true regarding mandibular first premolars

From the occlusal aspect
a. the distal occlusal fossa is typically larger and deeper
b. the mesial occlusal fossa is typically larger and deeper

A

a. mandibular first premolars=distal occlusal fossa is typically larger and deeper

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15
Q

Which tooth has a very prominent buccal pulp horn?

A

Mandibular first premolars

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16
Q

The second mandibular premolar is _______ than the first premolar

a. smaller
b. larger
c. same size

A

b.
Mandibular second premolars are larger than the first

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17
Q

Mandibular second premolars have what outline form from the buccal view

A

Trapezoidal outline form

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18
Q

In mandibular second premolars, the ______ contact is slightly more occlusal than the ______ contact

A

The mesial contact is slightly more occlusal than the distal contact

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19
Q

Mandibular second premolars: Lingual aspect

The _____ marginal ridge is located cervical to the ____ marginal ridge

A

the distal marginal ridge is located cervical to the mesial marginal ridge

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20
Q

T or F. Mandibular second premolar apex is blunted.

A

True

20
Q

T or F. Mandibular second premolar apex is blunted.

A

True

21
Q

Maxillary First premolars are what teeth numbers

A

5 and 12

22
Q

Maxillary second premolars are what teeth numbers

A

4 and 13

23
Q

Maxillary first premolar has a ______ buccal cusp

A

sharp buccal cusp

24
Q

In maxillary first premolars, the continuous ridge from cusp tip to cervical margin on the buccal surface is called the _______

A

buccal ridge

25
Q

maxillary first premolars: labial aspect

the mesial crown surface is slightly _______ gingival to the contact area

A

slightly concave

26
Q

Maxillary first premolars, the contact areas are nearly the same height. The distal contact can be located slightly __________ than the mesial contact area

A

the distal contact can be located slightly MORE OCCLUSAL than the mesial contact area

27
Q

Maxillary first premolars
The mesial cusp ridge is ______ than the distal cusp ridge

A

The mesial cusp ridge is LONGER than the distal cusp ridge.

*mesial cusp ridge can be concave or notched

28
Q

Maxillary first premolars
The distal cusp ridge is _____ and more______ than the mesial cusp ridge

A

The distal cusp ridge is SHORTER and more curved than the mesial cusp ridge

29
Q

Maxillary first premolar: Palatal aspect
The lingual cusp is smaller and tip of the cusp is shifted toward the ______

A

The lingual cusp is smaller and the tip of that cusp is shifted toward the MESIAL

30
Q

Maxillary first premolars: mesial aspect

The facial cusp is about ________mm longer than the lingual cusp

A

The facial cusp is about 1 mm longer than the lingual cusp

31
Q

Which teeth have the canine fossa?

A

Maxillary first premolars

32
Q

Maxillary first premolars: occlusal aspect

a. diamond
b. square
c. hexagonal
d. rhomboidal

A

c. hexagonal

33
Q

Most maxillary first premolars have _____ roots and _______ two pulp canals

A

Maxillary first premolars: two roots and two pulp canals

34
Q

Maxillary second premolar: facial aspect

The _______ contact area is located more cervically than the _____ contact area

A

The distal contact area is located more cervically than the mesial contact area

*does this follow the contact rule? YES

35
Q

Maxillary second premolar: proximal aspect

What is the relationship between the buccal and lingual cusp?

A

They are nearly the same size

36
Q

Key differences between a maxillary first premolar and a second premolar (list 5)

A
  1. first premolar is hexagonal and has more defined line angles
  2. first premolar has a canine fossa
  3. first premolar may have a mesial marginal groove
  4. second premolar is oval
  5. second premolar will have lots of supplemental grooves (wrinkly)
37
Q

T or F: During late stage of enamel mineralization, enamel is dull, opaque, and soft

A

False.

Early stages of enamel mineralization=dull, opaque, and soft

Late stages= translucent, calcified, hard

38
Q

Define hypoplasia

A

pits, grooves, or missing enamel

39
Q

Turner’s tooth is caused by

A

Periapical inflammatory disease or trauma from the overlying deciduous tooth

40
Q

Dental fluorosis causes a retention of ______ proteins leading to _______ enamel

A

Causes retention of AMELOGENIN proteins leading to HYPOMINERALIZED enamel

41
Q

Which anterior tooth MOST frequently exhibits a bifurcated root and identify the positions of the roots

A

22; facial and lingual

42
Q

Which of the following roots MOST likely has two canals?

a. facial root of the max first premolar
b. palatal root of the max first molar
c. distofacial root of the max first molar
d. mesiofacial root of the max first molar
e. distal root of the mand first molar

A

Mesiofacial root of the max first molar

43
Q

List the type of teeth that are most commonly single rooted

A
  1. all anterior teeth
  2. maxillary second premolar
  3. mandibular first premolar
44
Q

List the type of teeth that are most commonly bifurcated

A
  1. mandibular canines
  2. maxillary first premolar
  3. mandibular first premolar (common variation)
  4. mandibular molars
45
Q

List the type of teeth that can have trifurcation?

A
  1. Maxillary molars
46
Q

Each root USUALLy has one canal EXCEPT:
Maxillary
1.
2.
Mandibular
1.
2.
3.
4.
5.
6.

A

Maxillary:
1. Second premolars
2. First molars (MB2)
Mandibular:
1. Central
2. Lateral
3. Canine
4. first premolar
5. Second premolar
6. Molars (mesial root has 2 canals; distal root occasionally has 2 roots)

47
Q

The mammalian dental formula expresses the type and number of teeth per _____

A

Per side

DAOB (4 decks)

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