MDS PREP
Which of the following is called as basic "sectional" or "slice" radiography
1. Othopantomography
2. Cephalogram
3. Tomography
4. All of the above
Radiology
Answer: 3
The imaging technique called basic "sectional" or "slice" radiography is tomography.
Cornoid process of mandible can be best viewed on
1. PA view of skull
2. Towne"s projection
3. Lateral view of skull
4. Wasters view
Radiology
Answer: 1
The coronoid process of the mandible can be best viewed on PA view of skull.
The best radiographic view for TMJ is
1. Lateral oblique
2. PA view
3. Waters view
4. OPG
Radiology
Answer: 4
The best radiographic view for TMJ is OPG.
In order to determine anterior-posterior extent of ameloblastma in mandibular molar area, you would like to use following projection
1. Waster view
2. PA view of mandible
3. Distal oblique
4. Lateral oblique view
Radiology
Answer: 3
To determine the anterior-posterior extent of ameloblastoma in the mandibular molar area, the projection used is distal oblique.
Imaging technique with MAX radiation exposure to patient?
1. chest x-ray
2. MRI
3. CT scan
4. bone scan
Radiology
Answer: 3
Explanation: Among the imaging techniques listed, a CT (computed tomography) scan typically involves the highest radiation exposure to the patient. This is due to the multiple X-ray images taken from different angles to create cross-sectional images of the body.
Interproximal caries is best detected by
1. Bitewing radiography
2. Periapical
3. Occlusal
4. None of the above
Interproximal caries is best detected by bitewing radiography.
The wavelength of X-ray photon depends upon
1) Milli amperage
2) Kilo voltage
3) Distance between source and object
4) Quantity of electrons in the cathod stream
Radiology
Answer: 2
The wavelength of X-ray photon depends upon kilo voltage.
The wavelength of X-rays is inversely proportional to their energy, and the
energy of X-ray photons is determined by the kilo voltage (kV) used in the X-ray
tube. Higher kV results in higher energy and shorter wavelength photons, which
are more penetrating and are used for imaging denser tissues, while lower kV
results in lower energy and longer wavelength photons, which are less
penetrating and are used for imaging softer tissues. The other factors mentioned
(milli amperage, distance between source and object, and quantity of electrons
in the cathodic stream) affect the intensity of the X-ray beam but not the
wavelength of the photons.