The formation of which of the following does not represent normal physiologiacl process of dentin formation_______________?

Related Mcqs:

1. Marked reduction in amount of dentin, widening of predentin layer, presence of large area of interglobular dentin and irregular pattern of dentin is seen in______________?

   A. Hypocalcified dentin
   B. Odonto dysplasia
   C. Dentin dysplasia
   D. Dentinogenesis imperfecta

2. Compared to the inter tubular dentin, peritubular dentin is characterized by which of the following ?

   A. Greater stainability
   B. Lasser content of inorganic salts
   C. greater content of inorganic salts
   D. Greater content of large collagen fibres

3. In adult teeth, the type of dentin present underlying dentin-enamel junction is_______________?

   A. Predentin
   B. Mantle dentin
   C. Interglobular dentin
   D. Tertiary dentin

4. Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?

   A. Base to base
   B. Apex to base
   C. Apex to apex
   D. None of the above

5. A child’s CSF was examined I contains slightly raised or normal PMN cells, raised lymphocytes, absence of mycotic growth, value of protein is normal or above normal, glucose level is normal. The most probable diagnosis is____________?

   A. Pyogenic bacterial meningitis
   B. Viral meningitis
   C. Fungal meningitis
   D. Tuberculous meningitis

6. Which one of the following dental cement accelerates the formation of reparative dentin ?

   A. Eugenol
   B. Calcium Hydroxide
   C. Zinc oxide
   D. Silica

7. Formation of dentin by odontoblasts begins in_______________?

   A. Morphogenic stage
   B. Organizing stage
   C. Desmolytic stage
   D. Formative stage

8. A histologic evidence of widespread formation of globular hypocalcified dentin and pulp horns reaching the dentinoenamel junction, absence of lamina dura around the tooth in radiograph are the characteristic features of_____________?

   A. Vitamin -D resistant rickets
   B. Hypophosphatasia
   C. Hypervitaminosis-A
   D. Vitamin-A deficiency

9. A 4-year old child has a normal complemented of primary teeth but they are gray and exhibit extensive occlusal and incisal wear. Radiographic examination indicates extensive deposits of secondary dentin in these teeth. Most likely this condition is______________?

   A. Neonatal hypoplasia
   B. Amelogenesis imperfecta
   C. Cleidocranial dysplasia
   D. Dentinogenesis imperfecta

10. Accentuated incremental lines in dentin due to disturbances in matrix and mineralization process is_____________?

    A. Incremental lines of retzius
    B. Incremental lines of vonebner
    C. Contour lines of owen
    D. None of the above