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. Chlorhexidine is used as mouth wash in the concentration of:
A. 0.1-0.2 %.
B. 1-2 %.
C. 5-10 %.
D. 20 %
2. For treatment of pericoronitis:
A. Extraction of the tooth.
B. Analgesic + Sterility + Antibiotic.
C. Cleaning with concentrated phenol.
D. None
3. Bass brushing has the advantage of the bristles enters in the cervical area , and it is recommended for all patients:
A. Both statements are true.
B. Both statements are false.
C. First is true ,second is wrong.
D. First is wrong , second is true
4. During examination 34 show gingival recession buccally, the least correct reason is:
A. Frenum attachment.
B. Patient is right hand brushed.
C. Occlusal force.
D. Inadequate gingival
5. Floss used to:
A. Remove Interproximal plaque.
B. Remove overhangs.
C. Stimulate gingival
D. None of these
6. The periodontium comprise which of the following tissues:
A. Gingiva and the PDL.
B. Gingival, PDL, and alveolar bone.
C. Gingival, PDL, alveolar bone, and cementum.
D. Gingival, PDL, alveolar bone, cementum, and enamel
7. Gingival condition occur in young adult has good oral hygiene was weakened:
A. ANUG.
B. Desqumative gingivitis.
C. Periodontitis.
D. Gingivitis
8. Electro surgery rate:
A. 1.5 – 7.5 million cycle per seconds.
B. 7.5 – 10 million cycle per seconds.
C. 10 – 25 million cycle per seconds.
D. 30 million cycle per seconds
9. Cementum in cervical 2/3 have:
A. A Cellular intrinsic fiber.
B. A Cellular extrinsic fiber.
C. Cellular mixed fibers.
D. Intermediate cementum
10. The water reins devices for periodontal therapy has a main goal which is: Remove plaque.
A. Prevent plaque attachment.
B. Dilute bacterial toxin.
C. Remove dental pocket
D. All of these
11. Hemisection 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
12. 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
13. Caries consist of:
A. Bacteria.
B. Fluid.
C. Epithelial cells
D. All of these
14. 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
15. Dental plaque is formed after :
A. 6 hours.
B. 12 hours.
C. 24 hours.
D. 48 hours
16. 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
17. To prevent perio problem MOST effective method is:
A. Community program.
B. Removal of plaque.
C. Patient education
D. None of these
18. 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
19. Which of the following statement is true for the reported relationship of periodontal disease and diabetes mellitus:
A. The reported incidence of periodontal disease in the diabetes is less than that for nondiabetic.
B. Pts with history of diabetes of less than 10 years have more periodontal disease destruction than those with history of longer than 10 years.
C. The prevalence of periodontal disease increase with the advancing age of the diabetic.
D. The prevalence of periodontal disease increase with the better metabolic coronal of the diabetic state
20. Main use of dental floss:
A. Remove calculus.
B. Remove over hang.
C. Remove bacterial plaque.
D. Remove food debris
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