MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the external oblique
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the mandibular canal
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the mental foramen
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the maxillary sinus
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Detailed explanation-1: -Use the “smile” line to mount bitewing radiographs (BWXs).
Detailed explanation-2: -Bitewing Surveys There are several landmarks recorded on molar bitewing radiographs whether vertical or horizontal in orientation. The most common structures observed are the external oblique ridge and maxillary tuberosity.
Detailed explanation-3: -For molar bitewings, the front edge of the PID should be placed over the corner of the mouth to prevent cone cuts. The central ray marker on the PID should be lined up with the white part of the patient’s eye. This will help to open up the contacts between the molar teeth.
Detailed explanation-4: -Mental foramen – The mental foramen, the primary landmark of this area, is a circular radiolucent structure located below the roots of the mandibular premolar teeth.
Detailed explanation-5: -Mandibular landmarks include mental foramen, mandibular canal, external oblique ridge, trabecular patterns, and alveolar crest.