First evidence of calcification of maxillary permanent central incisors occurs at_____________?
First evidence of calcification of maxillary permanent central incisors occurs at_____________? A. 3-4 months B. 10-12 months C. 2-3 years D. 3-4 years
First evidence of calcification of maxillary permanent central incisors occurs at_____________? A. 3-4 months B. 10-12 months C. 2-3 years D. 3-4 years
Primary canine erupts______________? A. After D B. Before B C. After B D. After E
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
Which of these teeth are highly sturdy and usually the last ones to be lost ? A. First molar B. Central incisorsC. Canines D. Premolars
Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________? A. Superior and facial B. Inferior and facial C. Superior and lingualD. Inferior and lingual
The root completion of permanent teeth is achieved after __________ years o eruption? A. 1-1½B. 2-3 C. 3-4 D. 4-5
Growth of all permanent teeth except last molars is completed by___________? A. 6 years B. 8 years C. 12 yearsD. 17 years
Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________? A. Only molars B. All teeth except third molars C. 1,2,4,5,6,7 in all quadrantsD. 1,2,6 in all quadrants
A six- year molar begins to calcify at______________? A. Six months IUB. At birth C. 1 years after birth D. 3 years age
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