Oral Anatomy - Calcification and Eruption of Teeth
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This is MCQs of Oral Anatomy
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Question 1 of 49
1. Question
The last primary tooth to be replaced by a permanent tooth is usually the:
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Question 2 of 49
2. Question
The most common sequence of eruption of the permanent maxillary teeth in children is:
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Question 3 of 49
3. Question
Calcification of permanent first molar usually begins in the:
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Question 4 of 49
4. Question
A radiograph of 4- years old child reveals no evidence of calcification of mandibular second pre molar. This indicates
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Question 5 of 49
5. Question
The usual order of appearance of the primary teeth in the mouth is:
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Question 6 of 49
6. Question
Generally in majority of children, the sequence of eruption of permanent teeth in mandible is:
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Question 7 of 49
7. Question
The first permanent tooth to erupt in the oral cavity is the:
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Question 8 of 49
8. Question
First evidence of initiation of primary dentition is usually around:
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Question 9 of 49
9. Question
While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged:
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Question 10 of 49
10. Question
Which of the following is dental formula of a 9 years old child:
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Question 11 of 49
11. Question
Dentition of humans is:
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Question 12 of 49
12. Question
Number of teeth seen on X- ray at birth:
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Question 13 of 49
13. Question
A child has 12 permanent and 12 decidous teeth, what is his age:
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Question 14 of 49
14. Question
Eruption date of decidous maxillary 2nd molar is :
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Question 15 of 49
15. Question
At birth the following teeth are calcifying:
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Question 16 of 49
16. Question
What is the amount of time required by erupting premolar to move through 1 mm of bone as measured on a bite – wing radigraph?
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Question 17 of 49
17. Question
There are two normal children of the same age and sex. In one, all the permanent teeth except the third molars have erupted.In the other,no permanent canines or premolars have erupted. How old are these children?
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Question 18 of 49
18. Question
Kalu, a 6- years – old child, received tetracycline. Noticeable discoloration will be seen in:
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Question 19 of 49
19. Question
As compared to permanent tooth , root formation in primary tooth:
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Question 20 of 49
20. Question
Calcification of third molar begins at:
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Question 21 of 49
21. Question
A six- year molar begins to calcify at:
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Question 22 of 49
22. Question
The time taken for primary tooth root completion after eruption:
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Question 23 of 49
23. Question
Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old:
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Question 24 of 49
24. Question
Calcification of all teeth except last molars are completed by:
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Question 25 of 49
25. Question
Growth of all permanent teeth except last molars is completed by:
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Question 26 of 49
26. Question
Once the enamel formation is complete, the tooth will erupt after approximately:
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Question 27 of 49
27. Question
The root completion of permanent teeth is achieved after _______ years o eruption:
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Question 28 of 49
28. Question
The correct dentition in a 9- years old child is:
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Question 29 of 49
29. Question
Before eruption the position of permanent mandibular incisor buds relative to primary incisors is:
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Question 30 of 49
30. Question
The decidous canine emerges:
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Question 31 of 49
31. Question
Which of these teeth are highly sturdy and usually the last ones to be lost?
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Question 32 of 49
32. Question
Calcification of roots of decidous teeth is completed by:
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Question 33 of 49
33. Question
In the majority of situations, the first decidous tooth to erupt is the:
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Question 34 of 49
34. Question
The eruption are of maxillary permanent lateral incisor is:
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Question 35 of 49
35. Question
Primary canine erupts:
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Question 36 of 49
36. Question
In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should:
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Question 37 of 49
37. Question
First evidence of calcification of maxillary permanent central incisors occurs at:
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Question 38 of 49
38. Question
First permanent molars begin to calcify at :
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Question 39 of 49
39. Question
Root completion of the mandibular first molar takes place by the age:
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Question 40 of 49
40. Question
Maxillary primary cuspid enamel completion takes place at:
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Question 41 of 49
41. Question
Beginning of eruption of permanent tooth starts:
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Question 42 of 49
42. Question
The tooth bud for the third molar is initiated at about the age of:
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Question 43 of 49
43. Question
In how many years, the central incisors erupt as permanent teeth?
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Question 44 of 49
44. Question
The first macroscopic indication of morphologic development of primary incisors approximately at:
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Question 45 of 49
45. Question
The teeth that are retained for the longest period of time are:
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Question 46 of 49
46. Question
A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous:
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Question 47 of 49
47. Question
The process of exfolitation of primary teeth is between:
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Question 48 of 49
48. Question
The first evidence of calcification of primary anterior teeth begins approximately between :
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Question 49 of 49
49. Question
Which of the following is true about calcification of teeth ?
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