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

Related Mcqs:

1. 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

2. 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

3. Which statement is correct about decidous dentition?

   A. Calcification of maxillary primary first premolar is completed at birth
   B. Mandibular first molar erupts at one and half years of age
   C. The crowns of primary dentition are more yellowish than permanent
   D. The primary dentition is initiated at 10^th month in uterus

4. Most common missing tooth in the permanent dentition is_____________?

   A. Maxillary canine
   B. Maxillary first molar
   C. Mandibular second premolar
   D. Mandibular first molar

5. Which of the following decidous molars bears the greatest resemblance to a premolar _____________?

   A. Maxillary first
   B. Maxillary second
   C. Mandibular first
   D. Mandibular second

6. Transverse ridge is prominent on occlusal surface of which of the following decidous teeth ?

   A. Mandibular first molar
   B. Maxillary first molar
   C. Mandibular second molar
   D. Maxillary second molar

7. With respect to their permanent successors the sum of the mesidodistal diameters of the first and second decidous molar is generally ____________?

   A. Less
   B. Greater
   C. The same
   D. Not related

8. The direction of enamel rods in decidous teeth is_____________?

   A. Same as permanent teeth
   B. Inclined in an apical direction in the cervical third of crown
   C. Inclined in an occlusal direction in the cervical third of crown
   D. None of the above

9. The largest mesiodistal diameter in primary dentition is____________?

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

10. Pulp chambers and roots canals in decidous teeth______________?

    A. Wide and deep
    B. Shallow and narrow
    C. Wide and narrow
    D. Shallow and wide