Radiograph may show the number,
and width of root canals, the presence of calcified material in the pulp chamber or root canal,
The resorption of dentin originating within the root canal (internal resorption) or from the root surface (external resorption)
Calcification or obliteration of the cavity,
Thickening of the periodontal ligament resorption of cementum,
And nature and extent of periapical and alveolar bone destruction.