MDS PREP
Best X-ray for mesiodens is
1. Occlusal
2. PA view
3. Panorex
4. Bitewing
Radiology
Answer: 1
The best X-ray for mesiodens is occlusal.
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.
The region which is closest to satisfying all the principles of shadow casting and parallel placement of the film in a paralleling technique full mouth series of periodical radiographs is
1. Maxillary premolar view
2. Mandibular premolar view
3. Maxillary molar view
4. Mandubular molar view
Radiology
Answer: 4
The region closest to satisfying all the principles of shadow casting and parallel placement of the film in a paralleling technique full mouth series of periapical radiographs is mandibular molar view.
Zygomatic arch fractures are best viewed in
1. Occipitomental view
2. Lateral oblique
3. Submentovertex
4. Leteral view
Radiology
Answer: 3
Zygomatic arch fractures are best viewed in Submentovertex.
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
Tomography is a diagnostic imaging method that is often referred to as basic
"sectional" or "slice" radiography. It involves taking a series of
two-dimensional images of a specific area or "slice" of the body, using a narrow
beam of radiation that passes through the body from multiple angles. These
images are then combined to create a detailed, cross-sectional view of the
internal structures, allowing for the visualization of the body without the
superimposition of structures outside the area of interest. This technique is
particularly useful for diagnosing conditions that may not be apparent on
standard X-rays.
Explanation of the other options:
1) Othopantomography: This is a type of panoramic radiography used to capture a
wide-angle view of the teeth, jaw, and other oral structures. While it does
produce an image of a "section" of the body, it is not typically referred to as
"sectional" or "slice" radiography in the same sense as tomography, as it does
not involve the same layering or cross-sectional approach.
2) Cephalogram: A cephalogram is a specific type of X-ray used in dentistry and
orthodontics to examine the soft tissues and bones of the face and head,
particularly the skull and jaw. It provides a two-dimensional, flat
representation of the head from the side view, and while it is a form of
radiography, it does not produce the layered or cross-sectional images that are
characteristic of tomography.
Selection of kilovoltage for dental films depends on
1. Target-firm distance
2. Film-object distance
3. Density of tissues radiographed
4. All of the above
Radiology
Answer: 3
Selection of kilovoltage for dental films depends on the density of tissues radiographed.
Too light, thin, faded image on radiographic film is the result of
1. Overexposure of film
2. Concentrated developer solution
3. Exhausted developer solution
4. Pre-exposure of radiographic
Radiology
Answer: 3
Too light, thin, faded image on radiographic film is the result of exhausted developer solution.
In panaromic radiograph, smiling appearance of structures occurs if patient chin is
1. Placed anterior to focal trough
2. Placed posterior to focal length
3. Tilted downward
4. Tilted upwards
Radiology
Answer: 3
In a panoramic radiograph, a smiling appearance of structures occurs if the patient's chin is tilted downward.