The primary lateral incisors begin to calcify about the_____________?

Related Mcqs:

1. First permanent molars begin to calcify at ______________?

   A. 6 months of intra utrerine life
   B. At birth
   C. Before decidous incisors
   D. About 1 year after birth

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

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

3. A radiograph of the mandibular anterior teeth in a patient reveals radiolucencies above the apices of right lateral and central incisors. No restorations or cavities are present There is no pain or swelling and the pulps are vital. The diagnosis is_________________?

   A. Periapical granuloma
   B. Cementoblastoma
   C. Radicular cyst
   D. Chronic abscess

4. A 4-year old child has less number of teeth and lateral incisors with bifurcated roots with two root canals is called_____________?

   A. Dilaceration
   B. Concrescence
   C. Fusion
   D. Gemination

5. Hypoplastic defects in permanent central and lateral incisors are likely to result due to severe illness or other factors during_______________?

   A. First nine month of life
   B. First two years of life
   C. First month of life
   D. Two or three years of life

6. Which of the following features of a permanent maxillary lateral incisor aids in distinguishing it from a mandibular lateral incisor ?

   A. Flattened root
   B. More pronounced lingual fossa
   C. Thinner incisal ridge
   D. Sharper proximal incisal angles

7. Resorption of root of primary incisors starts at_____________?

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

8. 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

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

   A. 11 weeks in utero
   B. 14 weeks in utero
   C. 16 weeks in utero
   D. 6 weeks in utero

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

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