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. Overhanging restoration margins should be removed because:
A. It provides ideal location for plaque accumulation.
B. It tears the gingival fibers leading to attachment loss.
C. Its removal permits more effective plaque control.
D. A and C
2. 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
3. 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
4. Acute periodontal abscess:
A. Fistula present.
B. Swelling enlargement in tooth site.
C. Both A and B
D. None of these
5. 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
6. 34.Sharpening the curette and sickle, the cutting edge should be at angle:
A. 50-60.
B. 70-80.
C. 80-90.
D. 60-70
7. 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
8. 17.Dental plaque composed mainly of:
A. Bacteria.
B. Inorganic materials.
C. Food
D. None of these
9. Treatment of gingival trauma from faulty oral hygiene is mainly:
A. To advice the patient to give up faulty habits immediately
B. Reassure the patient that it will disappear by itself.
C. To buy a new brush
D. All of these
10. 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
11. Biological width:
A. 1 mm.
B. 2 mm.
C. 3 mm.
D. 4 mm
12. For treatment of pericoronitis:
A. Extraction of the tooth.
B. Analgesic + Sterility + Antibiotic.
C. Cleaning with concentrated phenol.
D. None
13. Chronic suppurative periodontitis:
A. Patientlains from moderate pain.
B. Fistula with drain.
C. Pulp polyp in open coronal carious lesion
D. All of these
14. Periodontal ligament fibers in the middle third of the root is:
A. Oblique.
B. Horizontal.
C. Transeptal
D. Any of these
15. 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
16. Calculus induce further periodontal lesion due to:
A. Directly stimulates inflammation.
B. More plaque adhere to it.
C. Irritate the gingiva.
D. All of these
17. Proxy brush with which type of furcation:
A. Furcation Grade 1-1.
B. Furcation Grade 2-2.
C. Furcation Grade 3-3.
D. Furcation Grade 4-4
18. Gingival condition occur in young adult has good oral hygiene was weakened:
A. ANUG.
B. Desqumative gingivitis.
C. Periodontitis.
D. Gingivitis
19. 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
20. Chlorhexidine is used as mouth wash in the concentration of:
A. 0.1-0.2 %.
B. 1-2 %.
C. 5-10 %.
D. 20 %
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