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.Management Sciences
Category: Oral Anatomy
In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?
A. Distal fossa of mandibular 2ndpremolar
B. Mesial fossa of mandibular 1st molar
C. Distal marginal ridge of mandibular 2ndmolar
D. Distal marginal ridge of mandibular 1st premolar
Eruption date of decidous maxillary 2nd molar is ______________?
A. 20 months
B. 18 months
C. 24 months
D. 28 months
First evidence of initiation of primary dentition is usually around_____________?
A. 4 months in utere
B. Birth
C. 4 months after birth
D. One year after birth
Which of the following is not a structural element of the temporomandibular joint ?
A. Sigmoid notch
B. Articular disc
C. Capsular ligament
D. Joint cavities
Five cusps are present in___________________?
A. Maxillary first molar only
B. Mandibular first molar only
C. Maxillary and mandibular first molar
D. Maxillary and Mandibular second molar
In the majority of situations, the first decidous tooth to erupt is the______________?
A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary second molar
The largest mesiodistal diameter in primary dentition is____________?
A. Mandibular 1st molar
B. Mandibular2nd molar
C. Maxillary 2nd molar
D. None of the above
In normal occlusion , with which grooves / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude______________?
A. Distobuccal groove
B. Mesial surface
C. Mesiobuccal surface
D. Transverse groove
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