Waters Skull View
The Waters (37 degrees) or Modified Waters (23 degrees) projection can be used to assess the maxillary, frontal and ethmoid sinuses and the nasal cavity; allows visualization of the coronoid processes of the mandible and condylar heads. As a P/A view at altered angulations, Water's may be used to assess fluid levels within the sinuses, and if the patient opens his or her mouth widely, the sphenoid sinuses may also be imaged. Other structures that can be evaluated are the zygomatic arch, the frontozygomatic suture, linea innominata and the mandibular condyle.

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