MDS PREP
Radiographic image of a malignant tumour is
1. Distinct sclerotic borders
2. Geographic bone destruction
3. Sunburst appearance
4. All of the above
Radiology
Answer: 3
Radiographic image of a malignant tumour is characterized by sunburst appearance.
Asymptomatic mixed radiopaque and radiolucent lesions found at the lower incisor region of a middle aged women may be
1. Periapical cysts
2. Cementoblastoma
3. Cementoma
4. Odontogenic cysts
Radiology
Answer: 3
Asymptomatic mixed radiopaque and radiolucent lesions found at the lower incisor region of a middle-aged woman may be cementoma.
Which of the following is the correct sequence of dark room processing of a radiograph
1) Rinsing, fixing, developing, washing and drying
2) Developing, rinsing, fixing, washing and drying
3) Washing, fixing, developing, drying and rinsing
4) None of the above
Radiology
Answer: 2
The traditional darkroom processing sequence for radiographs is as follows:
Developing: This step involves immersing the film in a
developing solution to reveal the latent image captured on the film.
Rinsing: This step is crucial to halt the development
process, preventing further exposure to the chemical in the developer.
Fixing: The film is then placed in the fixer solution
to stabilize the image and make it insensitive to light.
Washing: The film must be washed to remove any residual
chemicals before drying.
Drying: Finally, the film is dried for use.
30 degrees occipitomental view is used best for viewing
1. Rim of the orbit
2. Root of the orbit
3. Floor of the orbit
4. Both A and C
Radiology
Answer: 4
The 30-degree occipitomental view is best for viewing both the rim and floor of the orbit.
Fractures of remus and body of mandible can be best seen in
1. Lateral oblique 30 degrees
2. Lateral oblique 15 degrees
3. PA view of mandible
4. Occipitomental view
Radiology
Answer: 2
Fractures of the ramus and body of the mandible can be best seen in lateral oblique 15 degrees.
Size of the focal spot influences radiographic
1. Definition
2. Density
3. Contrast
4. All of the above
Radiology
Answer: 1
The size of the focal spot influences radiographic definition.
A developer at high temperature will cause
1. Clear white spots on the film
2. Yellow stains
3. Very dark image
4. Very light image
Radiology
Answer: 3
A developer at high temperature will cause a very dark image.
Screen films differ form non-screen films in that
1. They are more sensitive to light than X-rays
2. They are more sensitive to X-rays than light
3. They are usually used in intraoral radiography
4. They do not need intensifying screens
Screen films differ from non-screen films in that they are more sensitive to X-rays than light.