First permanent molars begin to calcify at ______________?

Related Mcqs:

1. The primary lateral incisors begin to calcify about the_____________?

   A. 4th month of life B. 4th month in utero C. 41/2 month in utero D. 5th month in utero...

2. Growth of all permanent teeth except last molars is completed by___________?

   A. 6 years B. 8 years C. 12 years D. 17 years...

3. According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________________?

   A. 1½ 2 years B. 2½ – 3 years C. 3-4 years D. 3-5 years...

4. Crown formation of all permanent teeth except third molars is completed between_____________?

   A. Birth to 8 years B. Birth to 12 years C. Birth to 6 years D. 6 years to 12 years...

5. 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...

6. A six- year molar begins to calcify at______________?

   A. Six months IU B. At birth C. 1 years after birth D. 3 years age...

7. The permanent mandibular second molar differs from the permanent mandibular first molar in number of ______________?

   A. Cusps B. Roots C. Lingual grooves D. Marginal ridges...

8. Calcification of all teeth except last molars are completed by____________?

   A. 2 years B. 4 years C. 6 years D. 8 years...

9. The most constant and valuable trait to differentiate among maxillary first, second and third molars i____________?

   A. Number of roots B. Depth of central fossae C. Comparative size of the cusp of carabelli D. Relative position of the distolingual grooves...

10. 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...