TCDHA RAD CHAP 1-8, 17, 19
EXAM 2025 |GUARANTEED
ACCURATE ANSWERS |LATEST
VERSION 2025\26
Radiolucent - ACCURATE ANSWERS✔✔ appears black or dark on a
radiograph
Insufficient density
Tissues are soft or thin
Ex. Air spaces, soft tissue, dental pulp, PDL space
Radiopaque - ACCURATE ANSWERS✔✔ appears white or light on a
radiograph
Dense
Tissues are hard or thick
Ex. Enamel, dentin, bone
,Density - ACCURATE ANSWERS✔✔ refers to the overall blackness or
darkness on a dental radiograph
What happens to a film if the density is too high - ACCURATE
ANSWERS✔✔ it will appear dark
What will influence the density of a radiograph - ACCURATE
ANSWERS✔✔ an increase or decrease in ma, kvp, exposure time, and
subject thickness
Increased ma in density = - ACCURATE ANSWERS✔✔ high density
Decreased ma in density = - ACCURATE ANSWERS✔✔ low density
Increased kv in density = - ACCURATE ANSWERS✔✔ high density
Decreased kv in density = - ACCURATE ANSWERS✔✔ low density
Increased kv in contrast = - ACCURATE ANSWERS✔✔ low contrast
Decreased kv in contrast = - ACCURATE ANSWERS✔✔ high contrast
EXAMLINKS
STUDY SMART,
,If ma is increased, the image will appear - ACCURATE ANSWERS✔✔
it will appear radiopaque
If kvp is decreased, the image will appear - ACCURATE
ANSWERS✔✔ it will appear radiolucent
If exposure time decreases, the film density .......... Resulting in a ...........
Image - ACCURATE ANSWERS✔✔ decreases, radiolucent
If client has an increase amount of soft tissue or dense bone, fewer x-
rays reach the film; therefore, the radiograph will have less density and
will appear - ACCURATE ANSWERS✔✔ radiolucent
Contrast - ACCURATE ANSWERS✔✔ refers to the difference in
degrees of density/blackness on a radiograph
Difference in the amount of light transmitter through adjacent areas on a
dental radiograph
High contrast - ACCURATE ANSWERS✔✔ a dental image that has
very dark areas and very light areas
EXAMLINKS
STUDY SMART,
, Low contrast - ACCURATE ANSWERS✔✔ a dental image that does
not have very dark and very light areas but instead has many shades of
gray
Short-scale of contrast - ACCURATE ANSWERS✔✔ black and white
Low kvp = short-scale contrast = high contrast
Long-scale contrast - ACCURATE ANSWERS✔✔ many shades of gray
High kvp = long-scale contrast = low contrast
Film contrast - ACCURATE ANSWERS✔✔ characteristics of a film
that influence contrast
Ex. Film processing and quality of the firm
Subject contrast - ACCURATE ANSWERS✔✔ characteristics of the
subject that influence contrast
Ex. Thickness, density of subject
Can be altered by changing the kvp
EXAMLINKS
STUDY SMART,
EXAM 2025 |GUARANTEED
ACCURATE ANSWERS |LATEST
VERSION 2025\26
Radiolucent - ACCURATE ANSWERS✔✔ appears black or dark on a
radiograph
Insufficient density
Tissues are soft or thin
Ex. Air spaces, soft tissue, dental pulp, PDL space
Radiopaque - ACCURATE ANSWERS✔✔ appears white or light on a
radiograph
Dense
Tissues are hard or thick
Ex. Enamel, dentin, bone
,Density - ACCURATE ANSWERS✔✔ refers to the overall blackness or
darkness on a dental radiograph
What happens to a film if the density is too high - ACCURATE
ANSWERS✔✔ it will appear dark
What will influence the density of a radiograph - ACCURATE
ANSWERS✔✔ an increase or decrease in ma, kvp, exposure time, and
subject thickness
Increased ma in density = - ACCURATE ANSWERS✔✔ high density
Decreased ma in density = - ACCURATE ANSWERS✔✔ low density
Increased kv in density = - ACCURATE ANSWERS✔✔ high density
Decreased kv in density = - ACCURATE ANSWERS✔✔ low density
Increased kv in contrast = - ACCURATE ANSWERS✔✔ low contrast
Decreased kv in contrast = - ACCURATE ANSWERS✔✔ high contrast
EXAMLINKS
STUDY SMART,
,If ma is increased, the image will appear - ACCURATE ANSWERS✔✔
it will appear radiopaque
If kvp is decreased, the image will appear - ACCURATE
ANSWERS✔✔ it will appear radiolucent
If exposure time decreases, the film density .......... Resulting in a ...........
Image - ACCURATE ANSWERS✔✔ decreases, radiolucent
If client has an increase amount of soft tissue or dense bone, fewer x-
rays reach the film; therefore, the radiograph will have less density and
will appear - ACCURATE ANSWERS✔✔ radiolucent
Contrast - ACCURATE ANSWERS✔✔ refers to the difference in
degrees of density/blackness on a radiograph
Difference in the amount of light transmitter through adjacent areas on a
dental radiograph
High contrast - ACCURATE ANSWERS✔✔ a dental image that has
very dark areas and very light areas
EXAMLINKS
STUDY SMART,
, Low contrast - ACCURATE ANSWERS✔✔ a dental image that does
not have very dark and very light areas but instead has many shades of
gray
Short-scale of contrast - ACCURATE ANSWERS✔✔ black and white
Low kvp = short-scale contrast = high contrast
Long-scale contrast - ACCURATE ANSWERS✔✔ many shades of gray
High kvp = long-scale contrast = low contrast
Film contrast - ACCURATE ANSWERS✔✔ characteristics of a film
that influence contrast
Ex. Film processing and quality of the firm
Subject contrast - ACCURATE ANSWERS✔✔ characteristics of the
subject that influence contrast
Ex. Thickness, density of subject
Can be altered by changing the kvp
EXAMLINKS
STUDY SMART,
