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
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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.
The blood vessels and nerves that travel through the pterygopalatine canal are ()
A. The descending palatine artery and the palatine nerves
B. The anterior palatine nerves and the palatine vessels
C. The middle and posterior palatine nerves, and the lesser palatine vessels
D. The nasopalatine nerves and the nasopalatine vessels
E. None of the above is true.
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