Occlusals
Occlusal radiography includes all techniques employed when films are positioned in the occlusal plane.

True occlusal projections demonstrate the dental arches at right angles to the occlusal plane. They will demonstrate the shape of the dental arch, the palate and the floor of the mouth, the buccal and lingual plates, and part of the antra. They are prescribed to determine the true position and direction of normal or displaced teeth and tooth fragments, assess the extent to which lesions are affecting the structure around a tooth, and to delineate cyst formations and bone expansion, to study bone formation on the buccal and lingual surfaces of the mandible and maxilla, and to help determine the true relationship of the fragments of a fracture, and to demonstrate calculi in the submandibular gland and duct.

Oblique occlusals demonstrate the area of the mandible and maxilla beyond the apex, fractures, the full extent of the cyst, unerupted teeth and supernumaries, if not to high, a root in the antrum.

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