题目内容

The nerves that leaves the middle and posterior part of the infraorbital canal include the anterior superior alveolar nerve and()

A. the maxillary nerve
B. the middle superior alveolar nerve
C. the posterior superior alveolar nerve
D. the infraorbital nerve
E. none of the above

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The floor of the maxillary sinus extends posteriorly from the maxillary second premolar to the root apex of ()

A. the maxillary first premolar
B. the maxillary canine
C. the maxillary first molar
D. the maxillary second molar
E. the maxillary third molar

Under most circumstances, the mental foramen opens ()

A. forward, downward, and inward
B. backward, upward, and outward
C. backward, downward, and inward
D. forward, upward, and outward
E. none of the above

Which is the smallest tooth in the dentition?()

A. the maxillary central incisor
B. the mandibular central incisor
C. the maxillary lateral incisor
D. the mandibular lateral incisor
E. none of the above

The root apex of which is closest to the mandibular canal.()

A. The mandibular first molar
B. The mandibular second molar
C. The mandibular third molar
D. The mandibular first, second, and third molars
E. None of the above is true.

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