DRC Technology & Digital Tools 2

Question 1

Which file format is most commonly used to store and transmit digital dental radiographic images in compliance with DICOM standards?

Accepted Answer

DCM

Answer

DCM (DICOM) is the standard file format for medical and dental digital images, ensuring interoperability across systems.

Question 2

What is the primary advantage of using a phosphor plate (PSP) system over direct digital sensors in dental radiography?

Accepted Answer

Flexibility and reusability with no direct wiring

Answer

PSP plates are flexible and reusable, eliminating the need for direct wiring, which makes them more comfortable for patients especially in posterior regions.

Question 3

In digital radiography, what does 'bit depth' determine?

Accepted Answer

The number of shades of gray displayable in the image

Answer

Bit depth determines the number of gray shades an image can display; higher bit depth provides more diagnostic detail in digital radiographs.

Question 4

Which digital radiography sensor type provides the fastest image acquisition time?

Accepted Answer

Charge-coupled device (CCD)

Answer

CCD sensors provide near-instantaneous image display, typically within seconds of exposure, making them among the fastest digital acquisition methods.

Question 5

When calibrating a digital radiography system, what is the purpose of performing a 'flat-field correction'?

Accepted Answer

To compensate for non-uniform pixel sensitivity across the sensor

Answer

Flat-field correction compensates for non-uniform pixel sensitivity, ensuring consistent image quality across the entire sensor surface.

(DRC) Dental Radiology Certification for Dental Hygienist Practice Test

(DRC) Dental Radiology Certification for Dental Hygienist Practice Test

DRC Technology & Digital Tools 2