MDS PREP
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.
Which of the following is true of paralleling cone technique
1. The radiopacity of the zygoma is superimposed on the roots of third molars
2. Easy to place with the film holder
3. Less of gag reflex
4. No need to sterilize the firm holder
Radiology
Answer: 2
Which of the following is true of the paralleling cone technique: it is easy to place with the film holder.
The X-ray view which is best for maxillary sinus
1. Waters view
2. Towner"s view
3. Submentovertex
4. Lateral oblique view
Radiology
Answer: 1
The X-ray view which is best for the maxillary sinus is Waters view.
Lateral skull view is used for viewing all of the following except
1. Medial wall and root of orbit
2. Nasal bone
3. Nasal septum
4. Calvarium and root of sinus
Radiology
Answer: 3
Lateral skull view is used for viewing all of the following except nasal septum.
Gamma camera in Nuclear Medicine is used for
1. Organ imaging
2. Measuring the radioactivity
3. Monitoring the surface contamination
4. RIA
Radiology
Answer: 2
Gamma camera in Nuclear Medicine is used for measuring the radioactivity.
Multiple radiolucencies are common in all of the following except
1. Multiple myeloma
2. Hyperparathyroidism
3. Osteopetrosis
4. Metastatic tumours of bone
Radiology
Answer: 3
Multiple radiolucencies are common in all of the following except osteopetrosis.
The following produces highest radiation exposure
1. CT scan
2. MRI
3. Pantamograph
4. Arthrograms
Radiology
Answer: 4
The following produces the highest radiation exposure: arthrograms.
Quality of x-ray beam is dependent on which component of dental unit
1. Autotransformer
2. Ammeter
3. Temperature of cathode filament
4. Step-down transformer
Radiology
Answer: 1
Quality of the x-ray beam is dependent on the temperature of the cathode filament.