MCQs in Endodontics

Chapter 5: Preparation of treatment

 

 
1 - It has been established that:

 

  1. exposure to HIV is more likely than exposure to hepatitis B virus.
  2. transmission of tuberculosis is primarily blood-borne.
  3. HIV is less fragile than the hepatitis B virus.
  4. each patient should be considered potentially infectious.

 

 

 

 

 

The answer is: D

 

 

2 - Endodontic files:

  1. are disposed of after one use.
  2. arc considered reusable sharps.
  3. may be picked up by hand before decontamination.
  4. may be disposed of in "generic refuse."

 

 

 

 

 

 

The answer is: B

 

3- To prevent cross-contamination after exposure of the x-ray film :

  1. gloves are superfluous.
  2. gloves are placed over contaminated gloves.
  3. dispose of film packet in generic refuse.
  4. disinfect with sodium hypochlorite.

 

 

 

 

 

 

The answer is: B

 

 

4- Informed consent information for endodontic therapy excludes:

  1. alternatives to recommended treatment.
  2. procedure and prognosis.
  3. a description of OSHA regulations.
  4. foreseeable and material risks.

 

 

 

 

 

 

The answer is: C

 

5- Radiographic exposure for purposes of endodontic therapy:

  1. has no place for fast, sensitive speed film.
  2. is minimized with RadioVisioGraphy.
  3. is unnecessary.
  4. does not require informed consent.

 

 

 

 

 

 

The answer is: B

 

6- X-ray units should be:

  1. optimally capable of utilizing 70 kVp.
  2. pointed in shape.
  3. collimated to reduce exposure level, not to exceed 7 cm at the skin surface.
  4. collimated to reduce exposure level, not to exceed 9 cm at the skin surface.

 

 

 

 

 

 

The answer is: C

 

7- The American Heart Association recommends for prophylactic antibiotic coverage:

  1. penicillin V rather than amoxicillin.
  2. amoxicillin rather than penicillin V.
  3. Keflex rather than penicillin.
  4. cephalosporins rather than erythromycin.

 

 

 

 

 

The answer is: B

 

8- Radiographic contrast can be directly affected by altering:

  1. milliamperage.
  2. exposure time.
  3. kilovoltage.
  4. angulation.

 

 

 

 

 

 

 

The answer is: C

 

9- An osteolytic lesion visualized on a radiograph could be mistaken for:

  1. granulom.
  2. cyst.
  3. cementom.
  4. all of the above.

 

 

 

 

 

The answer is: D

 

10- The buccal object rule states:

  1. that the object farther from the buccal surface appears to move in the direction opposite the movement of the tube hea
  2. that the object closest to the buccal surface appears to move in the same direction as the tube hea
  3. that the object closest to the buccal surface appears to move in the direction opposite that of the tube hea
  4. that objects closest to the lingual surface appear on the film to move in the direction opposite the movement of the cone.

 

 

 

 

 

The answer is: C

 

11-With the cone moved to the distal and facing towards the mesial, the mesiobuccal root of the first molar:

  1. will be projected mesially on the film.
  2. will be projected distally on the film.
  3. will not move.
  4. appears to move lingually.

 

 

 

 

 

The answer is: A

 

12- To enhance tooth isolation to prevent contamination:

  1. isolation with cotton rolls is use.
  2. anticholinergic and systemic antibiotic drugs are use
  3. isolation with rubber dam is use
  4. direct access will achieve the goal.

 

 

 

 

 

The answer is: C

 

 

13- To enhance crown preparation and retention, crown lengthening is completed by:

  1. electrosurgery in the presence of infrabony defects.
  2. conventional gingivectomy in the presence of infrabony defects,
  3. laser surgery in the presence of infrabony defects.
  4. apicaily positioned flap, reverse bevel in the presence of infrabony defects.

 

 

 

 

 

The answer is: D