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

Related Mcqs:

1. Calcification of permanent first molar usually begins in the_____________?

   A. Third month of intrauterine life
   B. In the sixth month of intrauterine life
   C. At birth
   D. In the third month of extra uterine life

2. Calcification of third molar begins at__________________?

   A. 8 months
   B. 18 months
   C. 8 years
   D. 16 years

3. 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

4. A radiograph of 4- years old child reveals no evidence of calcification of mandibular second pre molar. This indicates______________?

   A. It is too early to make final predication
   B. The teeth may develop later
   C. Primary second molar extracted to allow mesial drifting of permanent first molar
   D. The child may never develop premolars

5. Which of the following is true about calcification of teeth ?

   A. Calcification of primary teeth is almost complete at time of birth
   B. Calcification of all primary teeth and few permanent teeth complete at birth
   C. Calcification of all permanent teeth complete at birth
   D. Calcification of primary teeth starts around birth

6. Calcification of roots of decidous teeth is completed by_____________?

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

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

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

8. A 20yr old patient reports with multiple swelling of the jaws. Clinical examination reveals multiple hard swellings involving the jaws and intra orally several missing teeth are noticed. Panoramic radiograph reveals multiple radio opaque lesions in the maxilla and the mandible with multiple impacted teeth and supernumerary teeth indicative of Gardeners syndrome: The above mentioned condition is______________?

   A. Autosomal dominant disease
   B. Autosomal recessive disorder
   C. X-linked disease
   D. A syndrome of unknown cause

9. The primary teeth that present the most outstanding morpholgic deviations from permanent teeth are______________?

   A. Central incisors
   B. Mandibular first molar
   C. Mandibular second molar
   D. Canines

10. Primary teeth differ from permanent teeth in following aspects ?

    A. Thickness of enamel and dentin
    B. Pulp chambers are longer
    C. Roots are flaring
    D. All of the above