Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?

Related Mcqs:

1. Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?

   A. Capsule
   B. Flagella
   C. Pili
   D. Mesosomes

2. Oral tissue for microscopic examination is prepared by_______________?

   A. Embedded in paraffin and sectioned
   B. Embedded in paradion and sectioned
   C. Frozen and sectioned
   D. Specimens ground into thin sections
   E. All of the above

3. On microscopic examination enamel rods have___________?

   A. Key hole appearance in cross section
   B. Paddle appearance in cross section
   C. Lanullate appearance in cross-section
   D. None of the above

4. S. mutans is involved in dental caries initiation Other bacteria also involved is______________?

   A. S. Sarcinus
   B. S. macae
   C. S. sanguis
   D. S. salivarius

5. Necrotising ragged ulceration with no apparent inflammatory response is indicative of____________?

   A. Leucocytosis
   B. Polycythemia vera
   C. Sickle cell anemia
   D. Agranulocytosis

6. Oral lesion associated with ulcerative colitis?

   A. Lichen planus
   B. pyostomatitis vegentanus
   C. sarcoidosis
   D. Dermatitis herpetiformis

7. Strawberry gingivitis is seen in_____________?

   A. Wegener’s Granulomatosis
   B. Scorbutic Gingivitis
   C. Plasma cell Gingivitis
   D. Leukemic Gingivitis

8. The structure in involved in bacterial attachment to cell surface is_______________?

   A. Capsule
   B. Fimbria
   C. Flagella
   D. None of the above

9. The necrotic tissue and deposits of immune complexes, complement and plasma protein produce a smudy eosinophilic deposit is termed as_____________?

   A. Coagulative necrosis
   B. Fibrinoid necrosis
   C. Caesous necrosis
   D. Fatty necrosis

10. Sloughing of necrotic epithelium is characteristic of_________________?

    A. Aspirin burn
    B. Denture sore mouth
    C. Traumatic ulcer
    D. Contact dermatitis