The first macroscopic indication of morphologic development of primary incisors approximately at____________?

Related Mcqs:

1. Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?

   A. Superior and facial
   B. Inferior and facial
   C. Superior and lingual
   D. Inferior and lingual

2. 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

3. Resorption of root of primary incisors starts at_____________?

   A. 4 yrs
   B. 6 yrs
   C. 8 yrs
   D. 10 yrs

4. 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

5. First evidence of calcification of maxillary permanent central incisors occurs at_____________?

   A. 3-4 months
   B. 10-12 months
   C. 2-3 years
   D. 3-4 years

6. In how many years, the central incisors erupt as permanent teeth ______________?

   A. 8-9 years
   B. 10-12 years
   C. 6-7 years
   D. 17-25 years

7. The root of maxillary lateral incisors if curved is usually in which direction ?

   A. Distal
   B. Mesial
   C. Facial
   D. Palatal

8. Rounded protuberances on the incisal edges of newly erupted permanent incisors are____________?

   A. Mamelons
   B. Tubercles
   C. Enamel pits
   D. Cingulum

9. The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines _____________?

   A. Within the incisor thirds
   B. At the junction of middle and cervical thirds
   C. At the linguo cervical ridges
   D. Immediately incisal to cingulam

10. In TCA cycle substrate level phosphorylation occurs at____________?

    A. Succinate dehydrogenase
    B. Malonate reduction
    C. Thiokinase
    D. None of the above