Focal Idiopathic Osteosclerosis

Definition: A hyperplasia of bone within the jaws.  This is frequently associated with root resorption (external resorption).

Radiographic Features:

Location: Anywhere in the maxilla and mandible.

Edge: Well-defined.

Shape: No apparent shape.

Internal: Radiopaque, radiopacity of cortical bone.

Other: May be associated with root resorption of adjacent teeth.

Number: May be single or multiple.

(Click image to enlarge)

Focal Idiopathic Osteosclerosis

(with arrow on right and without arrow on left)

Note the resorption of the distal root of the first molar.

Focal Idiopathic Osteosclerosis

(Both images are of same patient)

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