Dental X Ray Image Characteristics

Question 1

Visual Image Characteristics

Answer 1

Density

Contrast

Question 2

Geometric image characteristics

Answer 2

sharpness
magnification
distortion

Question 3

provides a great deal of information; the images exhibit proper density and contrast, are of the same shape and size as the object exposed, and have sharp outlines.

Answer 3

Diagnostic Image

Question 4

Darker areas represent heavier deposits of __ ___ particles. Density is this degree of silver blackening.

Answer 4

black silver

Question 5

3 exposure factors control the density of a dental image

Answer 5

kV
mA
Exposure time

Question 6

The beam is highly penetrating and has high energy. As a result, _____ seen in the resultant image.

Answer 6

shades of gray are seen

Question 7

The x-rays have less power and do not penetrate well. As a result, the image is mostly __ ___

Answer 7

black and white

Question 8

Density is directly related to

Answer 8

exposure time

Question 9

The range of useful densities seen on a dental image is termed the ___ of ____

Answer 9

scale of contrast

Question 10

A low or high kvp results in an image with a short scale contrast

Answer 10

lower kvp

Question 11

a __ wedge can be used to demonstrate short scale contrast and long scale contrast

Answer 11

step

Question 12

can be used to monitor the qualities of the film, the film processing, and the digital sensor, as well as calibration of the x-ray machine.

Answer 12

step wedge

Question 13

unsharpness or blurring of edges

Answer 13

Penumbra

Question 14

Umbra meaning

Answer 14

shadow

Question 15

Sharpness is influence by the following 3 factors

Answer 15

Focal spot size
film composition
movement

Question 16

Target receptor distance and obejct receptor distance influence by

Answer 16

magnification

Question 17

Distorted image results from the

Answer 17

object receptor alignment

x-ray beam angulation