Test Your Knowledge - Free MCQ PRACTICE
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DRIVINGTEST
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. 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

2. Subgingivally scaling and root planning is done by:
A. Gracey Curette.
B. Hoe.
C. Chisel
D. All these

3. Biological width:
A. 1 mm.
B. 2 mm.
C. 3 mm.
D. 4 mm

4. An 18 years old Patient present complaining of pain, bad breath and bleeding gingival. This began over the weakened while studying for the final exam. The patient may have which of the following conditions:
A. Acute necrotizing ulcerative gingivitis
B. Rapidly progressive periodontitis
C. Desquamative gingivitis.
D. Acute periodontal cyst

5. Caries consist of:
A. Bacteria.
B. Fluid.
C. Epithelial cells
D. All of these

6. Chlorhexidine is used as mouth wash in the concentration of:
A. 0.1-0.2 %.
B. 1-2 %.
C. 5-10 %.
D. 20 %

7. 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

8. 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

9. 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

10. 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

11. 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

12. 17.Dental plaque composed mainly of:
A. Bacteria.
B. Inorganic materials.
C. Food
D. None of these

13. What is the benefit of rinsing the mouth with water:
A. Plaque removal.
B. Calculus removal.
C. Washing the food debris
D. All of these

14. 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

15. Cementum in cervical 2/3 have:
A. A Cellular intrinsic fiber.
B. A Cellular extrinsic fiber.
C. Cellular mixed fibers.
D. Intermediate cementum

16. 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

17. 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

18. 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

19. 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.

20. Attrition may be caused by
A. Friction due to pipe.
B. Friction during sleep.
C. Gastric acid.
D. None

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