In multirooted teeth, formation of multiple roots is due to presence of_____________?

Related Mcqs:

1. 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

2. Roots of primary and secondary teeth are different in that the primary roots are more divergent and flaring. The other difference _____________?

   A. Primary roots show less a accessory and lateral canals
   B. Primary roots resorb more easily
   C. Primary roots are shorter
   D. None of the above

3. Multiple osteomas, multiple polyposis, supernumerary teeth are found in _______ syndrome?

   A. Reiter’s
   B. Peutz – jeghers
   C. Gardner’s
   D. Behcet’s

4. An abnormal resorption pattern in primary teeth, delayed eruption of permanent teeth and a large tongue are the feature of_____________?

   A. Addison’s disease
   B. Hypothyroidism
   C. Hyperthyroidism
   D. Von-Recklinghausen disease

5. In resorption of roots of the primary teeth, the dental pulp_____________?

   A. Plays a passive role
   B. Becomes a fibrotic non-vital mass
   C. Initiates resorption from the inner surface of roots
   D. Aids in formation of secondary dentin slowing down resorption

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

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

7. A union of the roots of adjacent teeth through the cementum is referred to as_____________?

   A. Concrescence
   B. Fusion
   C. Gemination
   D. None of the above

8. 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

9. In Cleidorcranial dysostosis, sometimes the roots of the permanent teeth are_____________?

   A. Thin and long
   B. thin and short
   C. Thick and short
   D. Fused

10. Bifid ribs, multiple radiolucent lesions of the jaws multiple basal cell nevi and flax cerebri calcification are found in:_____________?

    A. Basal cell nevus syndrome
    B. Sturge weber syndrome
    C. Horner syndrome
    D. Hereditary internal polyposis