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WorksheetsANAT1010: Characteristics of Posterior Teeth
Total questions: 10
Worksheet time: 3mins
A cone shaped elevation on the occlusal surface of posterior teeth is called...?
a) cusp
b) fossa
c) marginal ridge
d) pit
A oblique cusp ridge runs at a 90 degree angle to the central dissectional groove.
a) True
b) False
Concavities, or depressions in the occlusal surface that are bordered by the occlusal perimeter and the ridges are called...?
a) fossae
b) cusps
c) oblique ridges
d) transverse cusp ridge
A small cusp-like elevation of over calcified enamel that is found on some portion of a tooth crown is called...? (hint: most commonly found on maxillary first molars)
a) cusp tip
b) cusp of carabelli
c) fossae
d) none of the above
A groove that divides a posterior tooth into distinct parts is called...?
a) oblique ridge grooves
b) dissectional groove
c) secondary grooves
d) marginal ridge grooves
A ridge on the occlusal surface of a posterior tooth that extends from the cusp tip to the central developmental groove is called...?
a) marginal ridge
b) triangular ridge
c) oblique ridge
d) all of the above
Which out of the following molars have 5 cusps?
a) maxillary first molar
b) mandibular first molar
c) maxillary second molar
d) mandibular third molar
Which of the following molars have three roots?
a) maxillary right second molar
b) maxillary left first molar
c) mandibular right third molar
d) both a & b
The permanent maxillary right second molar occlusal outline of the crown is rhomboidal in shape.
a) True
b) False
Which premolar usually has 3 cusps?
a) mandibular right second premolar
b) maxillary right first premolar
c) maxillary left second premolar
d) mandibular right third premolar
