Question 1

A mask should be replaced:

  • [ ] A. Just before going to lunch

  • [✓] B. With every patient (CORRECT)

  • [ ] C. Only if it becomes wet

  • [ ] D. None of the above

Question 2

Which of the following is NOT an acceptable technique for the handling of sharps?

  • [ ] A. Recapping a needle using a cap holder

  • [ ] B. Recapping the needle using the scoop technique

  • [✓] C. Disposing of a needle in a general trash bag (CORRECT)

  • [ ] D. Disposing of a needle in a puncture-resistant container

Question 3

Dental cement Type III is used for:

  • [ ] A. Permanent cement

  • [ ] B. Permanent restorations

  • [✓] C. Liner / base (CORRECT)

  • [ ] D. Orthodontic banding

Question 4

One of the following is a temporary intracanal medicament used in a pulpotomy procedure:

  • [ ] A. GI cement

  • [ ] B. ZOE type II

  • [✓] C. Formocresol (CORRECT)

  • [ ] D. Cavity varnish

Question 5

The main purpose of a dental assistant during a procedure is:

  • [ ] A. Only hold instruments

  • [✓] B. Provide chairside support and ensure patient safety (CORRECT)

  • [ ] C. Perform extractions independently

  • [ ] D. Only take X-rays

Question 6

Antibiotic prophylaxis with dental procedures is recommended for patients with:

  • [ ] A. Hypertension

  • [ ] B. High blood glucose

  • [ ] C. Excessive overweight

  • [✓] D. Specific heart problems (CORRECT)

Question 7

The position used for dental biofilm removal in pediatric patients is:

  • [ ] A. Wrist-to-wrist position

  • [ ] B. Arm-to-arm position

  • [✓] C. Knee-to-knee position (CORRECT)

  • [ ] D. Leg-to-leg position

Question 8

A 72-year-old patient with a pacemaker presents with large supragingival and subgingival calculus deposits. Considering safety, which instruments should be used for calculus removal?

  • [ ] A. Powered instruments without using hand instruments

  • [ ] C. Powered instruments and sickle scalers only

  • [ ] D. Powered instruments and area-specific curets only

  • [✓] E. Hand instruments without using powered instruments (CORRECT)

Question 9

How long should a patient bite on a gauze pad after tooth extraction?

  • [ ] A. 5 minutes

  • [✓] B. 30–45 minutes (CORRECT)

  • [ ] C. 2 hours

  • [ ] D. Until the next morning

Question 10

Size 1 film may be used for:

  • [✓] A. Children; in adults: anterior teeth (CORRECT)

  • [ ] B. Children; in adults: posterior teeth

  • [ ] C. Small children

  • [ ] D. Extraoral film

Question 11

An incorrect point of entry in dental radiography results in:

  • [ ] A. Foreshortening

  • [ ] B. Elongation

  • [✓] C. Cone cut (CORRECT)

  • [ ] D. Overlap

Question 12

The body of the _____________ has a distinct upward curve toward the ramus in the molar area:

  • [ ] A. Maxillary arch

  • [ ] B. Mylohyoid ridge

  • [✓] C. Mandibular arch (CORRECT)

  • [ ] D. Oblique ridge

Question 13

The best ratio of the base to the catalyst in mixing Silicone material is:

  • [✓ ] A. 1:1(CORRECT)

  • [ ] B. 2:1

  • [ ] C. 1:2 

  • [ ] D. 2:2

Question 14

Which foods are considered most cariogenic?

  • [ ] A. Cheese and nuts

  • [✓] B. Sugary candies and soft drinks (CORRECT)

  • [ ] C. Vegetables and water

  • [ ] D. Eggs and fish

Question 15

All of the following features appear radiolucent on a radiograph image, EXCEPT:

  • [ ] A. Mental foramen

  • [ ] B. Submandibular fossa

  • [ ] C. Mandibular canal

  • [✓] D. Oblique ridge (CORRECT)

Last modified: Sunday, 18 October 2026, 6:38 AM