The correct dentition in a 9- years old child is_____________?
A. 12 CDE6
B. 12C456
C. 123DE6
D. 123456
Calcification and Eruption of Teeth
Once the enamel formation is complete, the tooth will erupt after approximately______________?
Once the enamel formation is complete, the tooth will erupt after approximately______________?
A. One year
B. Two years
C. Three years
D. Four years
Calcification of all teeth except last molars are completed by____________?
Calcification of all teeth except last molars are completed by____________?
A. 2 years
B. 4 years
C. 6 years
D. 8 years
The time taken for primary tooth root completion after eruption_____________?
The time taken for primary tooth root completion after eruption_____________?
A. 3 years
B. 1 years
C. 2 years
D. 1 month
Calcification of third molar begins at__________________?
Calcification of third molar begins at__________________?
A. 8 months
B. 18 months
C. 8 years
D. 16 years
Kalu, a 6- years – old child, received tetracycline. Noticeable discoloration will be seen in______________?
Kalu, a 6- years – old child, received tetracycline. Noticeable discoloration will be seen in______________?
A. Premolars, incisors and 1st molars
B. Canine and 2nd molars
C. Canines, premolars and2nd molars
D. Incisors and 1st molars
What is the amount of time required by erupting premolar to move through 1 mm of bone as measured on a bite – wing radigraph ?
What is the amount of time required by erupting premolar to move through 1 mm of bone as measured on a bite – wing radigraph ?
A. 3-4 months
B. 4-5 months
C. 5-6 months
D. 6-7 months
Eruption date of decidous maxillary 2nd molar is ______________?
Eruption date of decidous maxillary 2nd molar is ______________?
A. 20 months
B. 18 months
C. 24 months
D. 28 months
Number of teeth seen on X- ray at birth_______________?
Number of teeth seen on X- ray at birth_______________?
A. 20
B. 22
C. 24
D. 30
Which of the following is dental formula of a 9 years old child_____________?
Which of the following is dental formula of a 9 years old child_____________?
A. 6 EDC21/ 6EDC21
B. 6EDCBA/ 6EDC21
C. EDC21/EDC21
D. 76EDC21/ 7EDC21