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.Management Sciences
Category: Oral Anatomy
The most common curvature of the palatal root of maxillary first molar is_____________?
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A. Facial
B. Lingual
C. Distal
D. Mesial
The first permanent tooth to erupt in the oral cavity is the_____________?
A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary first molar
Which of the following movement (s) is / are involved in the opening of the mouth?
A. Only hinge ( rotation )
B. Only translation
C. Hinge followed by translation
D. Translation followed by hinge
The pulp of first primary molar contains________________?
A. Four pulp horn and three root canal
B. Three pulp horn and three root canal
C. Two pulp horn and two root canal
D. Two pulp horn and three root canal
The premolar with the occlusal groove pattern that may simulate the letter “Y” is________________?
A. Maxillary first
B. Maxillary second
C. Mandibular second
D. Mandibular first
The faciolingual angulation of the upper central incisor is approximately___________________?
A. 20°
B. 28°
C. 33°
D. 38°
Calcification of third molar begins at__________________?
A. 8 months
B. 18 months
C. 8 years
D. 16 years
The tooth bud for the third molar is initiated at about the age of______________?
A. 6th month I.U
B. 1st year of life
C. 2nd year of life
D. 8th year of life
As compared to permanent tooth , root formation in primary tooth______________?
A. Take less time
B. Take more time
C. Same time
D. Is complete when tooth erupts in oral cavity
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