First evidence of initiation of primary dentition is usually around_____________?

Related Mcqs:

1. Primary dentition period is______________?

   A. From birth to 11 years
   B. From 6 months to 11 years
   C. From 6 months to 6 years
   D. From 6 years to 11 years

2. The largest mesiodistal diameter in primary dentition is____________?

   A. Mandibular 1st molar
   B. Mandibular2nd molar
   C. Maxillary 2nd molar
   D. None of the above

3. The first evidence of calcification of primary anterior teeth begins approximately between ______________?

   A. 14 to 17 weeks in utero
   B. 9 to 12 weeks in utero
   C. 6- to 9 weeks in utero
   D. 17 to 20 weeks in utero

4. 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_____________?

   A. 3-6 years
   B. 7-10 years
   C. 11-14 years
   D. 15- 18 years

5. Dentition of humans is_______________?

   A. Herbivorous
   B. Omnivorous
   C. Carnivorous
   D. None of the above

6. The correct dentition in a 9- years old child is_____________?

   A. 12 CDE6
   B. 12C456
   C. 123DE6
   D. 123456

7. The total number of cingula in each dentition is_______________?

   A. 6
   B. 12
   C. 24
   D. 32

8. Normal dentition in centric occlusion, opposing contact may be expected at_____________?

   A. Buccals slopes of buccal cusps of maxillary posterior teeth
   B. Buccal slopes of lingual cusps of maxillary posterior teeth
   C. Lingual slopes of lingual cusps of mandibular posterior teeth
   D. All slopes of lingual cusps of mandibular posterior teeth

9. Among the difference between teeth in the decidous and the permanent dentition is that_____________?

   A. Buccal surfaces of the permanent molars are flatter
   B. Cervical ridges are more pronounced in permanent molars
   C. Root trunks of decidous teeth are larger compared with their overall root lengths
   D. Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengths

10. Which among the following is NOT a common finding of the decidous dentition ?

    A. Tight contacts, absence of spacing
    B. Shallow overjet and overbite
    C. Flush terminal plane
    D. Ovoid arch form