[PDF] Asymptomatic radiopaque lesions of the jaws: a .
· An interesting type of radiopaque lesion, which the authors named a pearl shell structure (PSS), was observed on conebeam CT in 34 of the 100 lesions, and likely represents the start of bone formation before bone sclerosis. Panoramic radiography and conebeam computed tomography (CT) were used to analyze asymptomatic radiopaque lesions in the jaw .