A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.For each of the following multiple choice questions, choose the most appropriate answer :
1. Attrition may be caused by
A. Friction due to pipe.
B. Friction during sleep.
C. Gastric acid.
D. None
2. Cementum in cervical 2/3 have:
A. A Cellular intrinsic fiber.
B. A Cellular extrinsic fiber.
C. Cellular mixed fibers.
D. Intermediate cementum
3. Periodontal pocket differ most significantly from gingival pocket with respect to:
A. Depth.
B. Tendency to bleed on gentle probing.
C. The location of the bone of the pocket.
D. All of the above
4. Periodontally involved root surface must be root planed to:
A. Remove the attached plaque and calculus.
B. Remove the necrotic cementum.
C. Change the root surface to become biocompatible
D. A and B
5. Main use of dental floss:
A. Remove calculus.
B. Remove over hang.
C. Remove bacterial plaque.
D. Remove food debris
6. Which of the following statements is true regarding dental calculus:
A. It is composed entirely of inorganic material.
B. It is dens in nature and has a rough surface.
C. It is mineralized dental plaque.
D. B and C only
7. Chronic suppurative periodontitis:
A. Patientlains from moderate pain.
B. Fistula with drain.
C. Pulp polyp in open coronal carious lesion
D. All of these
8. The best method for brushing :
A. Vertical.
B. Horizontal.
C. Bass sulcular method.
D. All of the above
9. After scaling and root planning healing occur by:
A. Long junctional epithelium.
B. New attachment.
C. New bone and connective tissue formation.
D. New attached periodontal ligament fibers
10. 17.Dental plaque composed mainly of:
A. Bacteria.
B. Inorganic materials.
C. Food
D. None of these
11. All of these are right ways to handle the instrument EXCEPT ?
A. Modified pen handle.
B. Inverted pen.
C. Pen handle.
D. Palm and thumb
12. Caries consist of:
A. Bacteria.
B. Fluid.
C. Epithelial cells
D. All of these
13. Use of miswak and toothbrush:
A. Toothbrush after meals and miswak at prayer time and when out of home.
B. Miswak and toothbrush must be used together.
C. Use the miswak only when they can not afford to buy the toothbrush and toothpaste.
D. Not use the miswak and use the toothbrush instead
14. Floss used to:
A. Remove Interproximal plaque.
B. Remove overhangs.
C. Stimulate gingival
D. None of these
15. Acute periodontal abscess:
A. Fistula present.
B. Swelling enlargement in tooth site.
C. Both A and B
D. None of these
16. Unmounted sharpening instruments are better than mounted because:
A. Has finer grains.
B. Don't alter the bevel of the instrument.
C. Easier to sterilize.
D. Less particles of the instruments are removed.
17. The best method for tooth brush is Bass method because:
A. It enter to interproximal area
B. Can be used by patient with gingival recession and it rotainary advice to all types of patients.
C. The both sentences are correct.
D. The first sentence is correct and the second is wrong
18. Currently the only effective preventive measure for periodontal disease, apart from limited use of antiseptic solutions, is:
A. Regular and rough removal of dental plaque.
B. Salt fluoridation.
C. Dental health education
D. None of these
19. Dental plaque is formed after :
A. 6 hours.
B. 12 hours.
C. 24 hours.
D. 48 hours
20. Amputation means:
A. Surgical removal of the apical portion of the root.
B. Removal of one or more roots.
C. The root and the crown are cut lengthwise.
D. None
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