Organism involved in smooth surface caries is____________?

Related Mcqs:

1. 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...

2. 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...

3. The dietary carbohydrate most likely involved in etiology of dental caries in man is____________?

   A. Glucose B. Sucrose C. Dextran D. Polysaccharide...

4. Progression of dental caries caries on pit and fissure occurs from:

   A. Apex of the pit and fissure B. Wide and of the pit and fissure C. Lateral surface of the pit and fissure D. Bottom of the pit and fissure...

5. An asymptomatic tooth has deep has deep caries on occlusal surface. Radiograph shows radiopaque mass at apex of the tooth: this mass is most likely to be:____________?

   A. Cementoma B. Condensing Osteitis C. Chronic apical periodontitis D. Acute apical periodontitis...

6. The caries of enamel surface leads to accentuation of:__________?

   A. Incremental lines of retzius B. Perikymata C. Imbrication lines of pickerill D. Wickham’s striae...

7. Organism involved in cellulitis is:___________?

   A. Strept. mutans B. Strept. pyogenes C. Pneumococci D. klebsiella...

8. The most common organism involved in a periapical abscess is:__________?

   A. Strep. Pyogens B. Strep. viridans C. β hemolytic stretococci D. Non hemolytic stretococci...

9. Streptococcus mutans is considered to be principle etiologic agent of caries because it produces organic acids and it ________________?

   A. Forms a gelatinous matrix B. Metabolizes substrate from saliva C. Derives energy from enamel constituents D. Lives symbiolically with lactobacillus...

10. Miller put forth the acidogenic theory of dental caries in the year______________?

    A. 1890 B. 1920 C. 1924 D. 1980...