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Dental Anatomy > CH 3&4 > Flashcards

CH 3&4 Flashcards

Canines and premolars

1
Q

The mesial surface of the canine is in contact with the distal surface of the _____

A

lateral incisor

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2
Q

What is the longest teeth in each arch?

A

canines

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3
Q

Function of canines?

A

tear food

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4
Q

prominent labial ridge of the canine is more prominent on which arch?

A

Maxillary

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5
Q

prominent labial ridge of the canine is more prominent on which arch?

A

Maxillary

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6
Q

Which canine has a sharper cusp angle?

A

Maxillary canine is more acute (sharper) while Mandible cusp angle is more blunt

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7
Q

Mesial cusp ridge of the canine is shorter than distal cusp ridge.
True or false.

A

True

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8
Q

Convex?

Concave?

A 
Convex= rounder
Concave= caved in
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9
Q

How many lobes does the canine develop have?

A

3 facial, 1 lingual= 4

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10
Q

The mandibular canine appears longer and narrower than the crown of the maxillary canine?
True or False

A

True

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11
Q

The mesial contact area of the maxillary canine is located at the ____

A

junction of the incisal and middle thirds

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12
Q

The distal contact area of the maxillary canine is located at the _____. And it touches what tooth?

A

middle third.

first premolar.

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13
Q

The mesial contact area of the mandibular canine is located at the ____

A

Incisal third

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14
Q

Does canines have cingulums?

A

yes

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15
Q

The distal contact area of the mandibular canine is located at the _____

A

junction of the incisal and middle third

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16
Q

Labial view?

A

The facial view of anterior teeth (incisors and canines)

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17
Q

Proximal view?

A

Side view

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18
Q

Occlusal surface?

A

chewing surface

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19
Q

Lingual view?

A

Towards tongue

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20
Q

Mesial and Distal side of canines has root depressions. Which side is deeper?

A

Distal has a deeper depression than mesial

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21
Q

Which premolar has the Mesial cusp ridge of the buccal cusp longer than the distal cusp ridge.

A

Maxillary first premolar

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22
Q

Which premolar has a nonfunctioning lingual cusp?

A

Mandibular first premolar

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23
Q

Two premolars that most frequently have a groove crossing the mesial marginal ridge or one groove just lingual to it.

A

Maxillary first premolar, Mandibular first premolar

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24
Q

Which premolar has a depression in the cervical one third of the mesial side of the crown and root?

A

Maxillary first premolar

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25
Q

Which maxillary premolar has the longer sharper buccal cusp?

A

Maxillary first premolar

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26
Q

Which is the largest maxillary premolar?

A

Maxillary first premolar

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27
Q

Which mandibular premolar has the longest and sharpest buccal cusp?

A

Mandibular first premolar

28
Q

Maxillary premolar that is most symmetrical (occlusal view)

A

Maxillary second premolar

29
Q

Two premolars without a central groove?

A

Mandibular first AND second premolar

30
Q

First mandibular premolar has a prominent transverse ridge.

A

True

31
Q

Which teeth are likely to have their Crowns tipped lingually with respect to the root axis line (proximal view)?

A

Mandibular first AND second premolars

32
Q

From buccal view, crown is tipped distally from the root axis?

A

Mandibular first AND second premolars

33
Q

Mesial marginal ridge is more cervically located than its distal marginal ridge?

A

Mandibular first premolar

34
Q

Which premolar has no transverse ridge?

A

Mandibular second premolar

35
Q

Which premolar has the longest central groove?

A

Maxillary first premolar

36
Q

Which premolar has two major cusps almost the same size and length?

A

Maxillary second premolar

37
Q

Which premolar is most likely to have two roots?

A

Maxillary first premolar

38
Q

Crest of curvature on a premolar?

A

cervical third

39
Q

Mesial marginal ridge cuts through the central groove.

A

true

40
Q

What makes up the occlusal table?

A

Cusps and ridges

41
Q

A depression found on the lingual surface of a canine bounded by the lingual ridge, distal cusp ridge, distal marginal ridge, and distal third of the cingulum is called a _____ ______.

A

distolingual fossa

42
Q

Whats the ONLY single rooted tooth has three cusps?

A

Mandibular second premolar

43
Q

One permanent premolar has a pronounced concavity on the cervical part of the crown. Which premolar and which surface is this?

A

Mesial surface of the maxillary first premolar

44
Q

When considering all premolars, which cusp is least developed?

A

Lingual cusp of the mandibular first pre molar

45
Q

Which type of premolar is most likely to have separate mesial and distal pits with a pronounced transverse ridge but without a distinct central groove (so carious pits are often restored separately)?

A

Mandibular first premolar

46
Q

Which premolar has a central fossa and two triangular fossae.

A

Mandibular second premolar (three-cusp)

47
Q

The crown of the permanent maxillary canine is ________the crown of the permanent mandibular canine.

A

Shorter than

48
Q

When viewed from the facial, what is the geometric shape of a premolar?

A

Pentagon shape

49
Q

Compared to a maxillary first premolar, a maxillary second premolar is most likely to exhibit:

A

A shorter central groove

50
Q

With the long axis of the tooth vertical, which ridge is most nearly horizontal?

A

A mesial cusp ridge of the mandibular

51
Q

When holding an extracted maxillary and mandibular canine from the same mouth, which characteristic(s) can be used to distinguish the maxillary canine?

A

The cusp of the maxillary canine is more pointed

52
Q

Two premolars that most frequently have a groove crossing the mesial marginal ridge or one groove just lingual to it.

A

Maxillary first premolar AND mandibular first premolar

53
Q

A Y-shaped occlusal groove pattern is characteristic of a:

A

Mandibular second premolar

54
Q

Which of the following teeth is most likely to have a central fossa and a lingual groove?

A

Mandibular second premolar

55
Q

Which posterior tooth is MOST likely to have a mesial longitudinal root depression more prominent than the distal root depression?

A

Maxillary first premolar

56
Q

The mandibular second premolar often exhibits a linear depression extending lingually from the central pit, separating the two lingual cuspsAns: This linear depression is known as the _______ ______.

A

Lingual groove

57
Q

From the proximal view, which premolar most closely resembles a canine?

A

Mandibular first premolar

58
Q

If a mandibular second premolar has three cusps, what are they called?

A

mesiolingual, distolingual, buccal

59
Q

Which premolar has two major cusps almost the same size and length?

A

Maxillary second premolar

60
Q

Which is the largest maxillary premolar?

A

Maxillary first premolar

61
Q

On an unworn permanent canine (maxillary or mandibular), the distal cusp ridge is slightly__________ than the mesial cusp ridge.

A

longer

62
Q

When the maxillary first premolar has more than one root, which description applies?

A

There are normally two roots: a facial and lingual

63
Q

The transverse ridge extends as a continuous elevation in a buccolingual direction to unite the ______ ______ of the buccal and lingual cusps of a mandibular first premolar.

A

Triangle ridge

64
Q

Which anterior tooth has a mesial cusp slope that is more nearly horizontal?

A

Mandibular canine

65
Q

What is a fossa?

A

A depression or concavity on an area of the crown of the tooth

Dental Anatomy (6 decks)

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