Question

Water's view is used to obtain diagnostic information of:

• A. Maxillary sinus
• B. Ethmoidal sinuses
• C. Frontal sinus
• D. Sphenoid sinus

Hint:

Occipitomental 45 degree view clears the petrous bones off the antra.

Answer 1

The Correct Option is A

Step 1: The Waters' view, also called the occipitomental view, is a radiographic projection of the skull used in sinus imaging.
Step 2: The X-ray beam is angled at \(45^\circ\) to the orbitomeatal line, passing from behind the head perpendicular to the film. This tilt projects the petrous bones below the maxillary antra.
Step 3: By clearing the petrous ridges, the view gives an unobstructed picture of the maxillary sinuses, which is its primary use.
Step 4: Frontal and ethmoidal sinuses are better seen on the Caldwell (occipitofrontal) view, and the sphenoid is seen on lateral or submentovertical views. Hence the Waters' view answers for the maxillary sinus.