MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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receptor placement, vertical PID (cone) angulation alignment, horizontal PID (cone) angulation alignment, and central ray centering.
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receptor removal, vertical PID (cone) angulation alignment, horizontal PID (cone) angulation alignment, and central ray centering
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receptor placement, vertical PID (cone) angulation alignment, horizontal PID (cone) angulation alignment, and lateral ray centering
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receptor placement, vertical PID (cone) angulation alignment, horizontal PID (cone) angulation alignment, and patient cooperation
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Detailed explanation-1: -The closer the end of the PID is to the patient’s face, the less X-‐ray spread. The results are better contrast and density of a radiograph, and a smaller area of tissue being exposed to radiation. The XCP ring should be close to the patient’s face, and the PID close to the ring of the XCP.
Detailed explanation-2: -Two types of exposure techniques may be used for intraoral periapical radiography: the paralleling and the bisecting angle technique (Figures 1 and 2). With the paralleling technique, the tooth and the sensor are both kept on a parallel planes.
Detailed explanation-3: -Intraoral images can be divided into three categories: (1) periapical projections, (2) bitewing projections, and (3) occlusal projections. Periapical radiographs should show all of a tooth, including the surrounding bone. Bitewing images show only the crowns of teeth and the adjacent alveolar crests.
Detailed explanation-4: -1 Periapical. 2 Bite-wing. 3 Occlusal. 08-Jan-2015