Definition: The ‘floor of the nasal cavity’ as labeled on radiographs is actually the junction of the floor of the nasal cavity with the lateral wall and/or vomer.
Location: Superior to the maxillary teeth both anterior and posterior.
Edge: Well-defined, corticated.
Shape: Straight line.
Number: Intraoral radiographs – one. Extraoral radiographs – one, two or three possibly seen.
(click to enlarge)
Floor of the nasal cavity