During mastication, the occlusal contact occurs at the which of the teeth.()
A. buccal surface
B. lingual surface
C. mesial surface
D. distal surface
E. occlusal surface
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The “six-year molars” refers to ()
A. The incisors
B. The canines
C. The premolars
D. The first molars
E. None of the above
The visible dental tissue on the longitudinal section of the crown does not include ()
A. The enamel
B. The dentin
C. The cementum
D. The pulp
E. None of the above
Which tooth can have five cusps on the occlusal surface?()
A. The maxillary first molar
B. The maxillary second molar
C. The maxillary third molar
D. The mandibular first molar
E. None of the above
The root system doesn't include ()
A. The root canal
B. The intercanal anastomoses
C. The lateral canal
D. The apical ramification
E. The pulp cavity
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