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.Management Sciences
Category: Decidous dentition
When viewed occlusally, a primary mandibular second molar closely resembles which of the following mandibular teeth ?
A. Permanent second molar
B. Permanent first molar
C. Second premolar
D. Primary first molar
With respect to their permanent successors the sum of the mesidodistal diameters of the first and second decidous molar is generally ____________?
A. Less
B. Greater
C. The same
D. Not related
During the development of a tooth, sound coalescence of the lobes results in_____________?
A. Grooves
B. Fissures
C. Cusps
D. All of the above
The primary teeth that present the most outstanding morpholgic deviations from permanent teeth are______________?
A. Central incisors
B. Mandibular first molar
C. Mandibular second molar
D. Canines
The direction of enamel rods in decidous teeth is_____________?
A. Same as permanent teeth
B. Inclined in an apical direction in the cervical third of crown
C. Inclined in an occlusal direction in the cervical third of crown
D. None of the above
Cusp of carbaelli can be considered a normal finding on____________?
A. Decidous mandibular 1st molar
B. Decidous maxillary 1st molar
C. Decidous maxillary 2nd molar
D. Decidous mandibular 2nd molar
In the majority of situations, that first decidous tooth to erupt is the____________?
A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary second molar
The crowns and roots of primary molar at their cervical portions are more____________?
A. Slender mesiodistally
B. Slender anteroposteriorly
C. Bulkier mesiodistally
D. Buliker anteroposteriorly
Difference between primary and permanent enamel is_______________?
A. In prism arrangement
B. in mineral content
C. No difference in enamel, difference in dentin
D. None of the above
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