A. After completion of root
B. When apical third root is still to be formed
C. When half of the root is still to be formed
D. when root formation starts
A. 7-8 years
B. 8-9 years
C. 9-10 years
D. 10 – 11 years
A. 3-4 months
B. 10-12 months
C. 2-3 years
D. 3-4 years
A. After D
B. Before B
C. After B
D. After E
A. Mandibular central incisor
B. Mandibular first molar
C. Maxillary central incisor
D. Maxillary second molar
A. First molar
B. Central incisors
C. Canines
D. Premolars
A. Superior and facial
B. Inferior and facial
C. Superior and lingual
D. Inferior and lingual
A. 1-1½
B. 2-3
C. 3-4
D. 4-5
A. 6 years
B. 8 years
C. 12 years
D. 17 years
A. Only molars
B. All teeth except third molars
C. 1,2,4,5,6,7 in all quadrants
D. 1,2,6 in all quadrants