EFDA Radiography & Infection Control 2

Question 1

Which type of dental radiograph is most useful for detecting interproximal caries in posterior teeth?

Accepted Answer

Bitewing

Answer

Bitewing radiographs are specifically designed to show the crowns of upper and lower posterior teeth on a single film, making them ideal for detecting interproximal caries.

Question 2

When sterilizing dental instruments, which method is considered the gold standard?

Accepted Answer

Steam autoclave

Answer

Steam autoclave (steam under pressure) is the most reliable and widely accepted method for sterilizing dental instruments.

Question 3

What is the recommended exposure setting for a bitewing radiograph on an adult patient with an average build?

Accepted Answer

Same settings as a periapical radiograph

Answer

Bitewing radiographs use the same kilovoltage and milliampere settings as periapical radiographs; only the film/sensor placement and angulation differ.

Question 4

Which personal protective equipment (PPE) must be worn when exposing dental radiographs?

Accepted Answer

Gloves, mask, and protective eyewear

Answer

OSHA and infection control guidelines require gloves, mask, and protective eyewear when exposing radiographs due to contact with patient saliva and potential aerosol exposure.

Question 5

A patient's thyroid collar is omitted during bitewing radiographs. What is the primary concern?

Accepted Answer

Unnecessary radiation to the thyroid gland

Answer

The thyroid gland is radiosensitive, and omitting the thyroid collar unnecessarily exposes it to ionizing radiation during dental radiography.

(EFDA) Expanded Function Dental Auxiliary Practice Test

(EFDA) Expanded Function Dental Auxiliary Practice Test

EFDA Radiography & Infection Control 2