DENT 1020 Permanent Teeth (Ch. 16, 17)

Question 1

A transverse ridge is:
A) Made from the joining of two triangular ridges separated by a groove
B) Called an oblique ridge if it is positioned diagonally
C) Is only found in permanent molars
D) All of the above
E) A and B only

Answer 1

E) A and B only

Question 2

Which molar usually has five functional cusps?
A) Maxillary first molar
B) Maxillary second molar
C) Mandibular first molar
D) Mandibular second molar

Answer 2

C) Mandibular first molar

Question 3

The teeth that have 5 developmental lobes and 5 cusps usually are:
A) Maxillary 1st molars
B) Mandibular 2nd molars
C) Maxillary 3rd molars
D) Mandibular 1st molars
E) A and D

Answer 3

E) A and D

Question 4

Which of the following permanent teeth is most likely to have two pulp canals (root canals)?
A) Maxillary first premolar
B) Mandibular first premolar
C) Maxillary first molar
D) Mandibular first molar

Answer 4

A) Maxillary first premolar

Question 5

Which of the following teeth are mostly likely to have a buccal pit that is susceptible to caries?
A) Mandibular first molar
B) Maxillary first molar
C) Mandibular second premolar
D) Maxillary second molar

Answer 5

A) Mandibular first molar

Question 6

From which view is the distal cusp of the mandibular first molar most visible?
A) Buccal
B) Lingual
C) Mesial
D) All of the above

Answer 6

A) Buccal

Question 7

TRUE or FALSE

The mandibular 2nd premolar is larger than the mandibular 1st premolar.

Answer 7

True

Question 8

The occlusal table is MOST visible from the lingual view on which of the following permanent teeth?
A) Mandibular second premolar
B) Mandibular first molar
C) Mandibular first premolar
D) Maxillary second premolar
E) Maxillary first premolar

Answer 8

C) Mandibular first premolar

Question 9

Which group/type of teeth are generally an exception to the rule which states "the mandibular counterparts typically erupt prior to the maxillary counterparts"?
A) Canines
B) First molars
C) Second molars
D) Premolars
E) Centrals

Answer 9

D) Premolars

Question 10

Of the following, which tooth is periodontally the most disadvantaged BECAUSE of its short root trunk?
A) Maxillary first molar
B) Maxillary first premolar
C) Mandibular first molar
D) Mandibular first premolar

Answer 10

C) Mandibular first molar

Question 11

Which tooth and cusp is the cusp of Carabelli sometimes located on?
A) Permanent mandibular first molar, distal cusp
B) Permanent maxillary first molar, distal lingual cusp
C) Permanent maxillary first molar, mesial lingual cusp
D) Primary maxillary second molar, mesial lingual cusp
E) None of the above

Answer 11

C) Permanent maxillary first molar, mesial lingual cusp

Question 12

All of the following are characteristics of distal convergence EXCEPT:
A) The tendency for the distal marginal ridges to be located more cervically than the mesial marginal ridges
B) More of the occlusal table is visible from the distal view than the mesial view
C) Found only in the mandibular teeth
D) None of the above (all of the above are characteristics of distal convergence)

Answer 12

C) Found only in the mandibular teeth

Question 13

Which are the following characteristics of the maxillary first premolars:
A) Have two roots that bifurcate at the apical
B) Are smaller than the maxillary 2nd premolars
C) Have a mesial cusp ridge that is shorter than the distal cusp ridge
D) All of the above

Answer 13

A) Have two roots that bifurcate at the apical

Question 14

Which tooth can have an occlusal pattern resembling an "H", "U", or a "Y"?
A) Maxillary first premolar
B) Maxillary second premolar
C) Mandibular first premolar
D) Mandibular second premolar
E) Mandibular first molar

Answer 14

D) Mandibular second premolar

Question 15

The first premolar in each quadrant replaces the:
A) Primary canine
B) Primary first molar
C) Primary second molar
D) Primary first premolar

Answer 15

B) Primary first molar

Question 16

Of the following permanent teeth, which will most likely be the last to erupt into the oral cavity:
A) Mandibular canine
B) Maxillary first molar
C) Maxillary first premolar
D) Maxillary canine

Answer 16

D) Maxillary canine

Question 17

The oblique ridge of the maxillary first molar connects the:
A) ML cusp with the DB cusp
B) MB cusp with the ML cusp
C) DL cusp with the MB cusp
D) ML cusp with the DL cusp

Answer 17

A) ML cusp with the DB cusp

Question 18

Infection of the soft tissue around a partially impacted tooth (usually mandibular 3rd molar) is called:
A) Periocoronitis
B) Periodontitis
C) Periodontal abscess
D) Periapical abscess

Answer 18

A) Periocoronitis

Question 19

The triangular ridge on each cusp of tooth #31 is inclined toward the:
A) Buccal groove
B) Lingual groove
C) Central groove
D) Mesial fossa
E) Distal fossa

Answer 19

C) Central groove

Question 20

TRUE or FALSE

The crown shape of the maxillary third molar is usually heart shaped.

Answer 20

False

Question 21

Which features are located on the lingual surfaces of all permanent anterior teeth in some level of development?

Answer 21

Incisal edge, marginal ridges, cingulum