MCQs on calcification and eruption of teeth

1.The first permanent tooth to erupt in the oral cavity is the:
Mandibular central incisor
Mandibular First Molar
Maxillary Central Incisor
Maxillary First Molar

2. The age of a child having 12 permanent and 12 deciduous teeth is:?
Four and half years
Eight and half years
Eleven and half years
Thirteen years
Fourteen years

3. The last primary tooth to be replaced by a permanent tooth is usually the:
Maxillary second molar
Mandibular second molar
Maxillary canine
Mandibular canine

4. The most common sequence of eruption of the permanent maxillary teeth in children is:

5. Calcification of permanent first molar usually begins:
in the third month of intrauterine life
in the sixth month of intrauterine life
at birth
in the third month after birth

6. A radiograph of a four year child reveals no evidence of calcification of mandibular second premolar. This indicates:
It is too early to make final prediction
The teeth may develop later
Primary second molar extracted to allow mesial drifting of permanent first molar
The child may never develop premolars

7. The usual order of appearance of the primary teeth in the mouth is:
Central incisors, first molars, lateral incisors, second molars, canines
Central incisors, lateral incisors, canines, second molars, first molars
Central incisors, lateral incisors, first molars, second molars, canines
Central incisors, lateral incisors, first molars, canines , second molars

8. First evidence of initiation of primary dentition is usually around?
4 months in utero
4 months after birth
one year after birth

9. Eruption of deciduous maxillary second molar occurs at:
20 months
18 months
24 months
28 months

10. The sequence of eruption of permanent teeth in mandible is:

11. Dentition of human is?
None of the above

12. Number of teeth seen on X-ray at birth is:

13. At birth the following teeth are calcifying:
Primary incisors and first molar
Primary canines and second molars
Permanent canines
Permanent third molar

14. James, a 6 year old child received tetracycline. Noticeable discoloration will be seen in ?
Canines, premolars and second molars
Canines and second molars
Incisors and first molars
Incisors, premolars and first molars

15. Once the enamel formation is complete, the tooth will erupt after approximately?
One year
Two years
Three years
Four years

16. Calcification of third molar begins at?
8 months
18 months
8 years
16 years

17. The deciduous canine emerges?
Before lateral incisor
Before first molar
After first molar
After second molar

18. Which of these teeth are highly sturdy and usually the last ones to be lost ?
First molar
Central incisors

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