Definition: Elongated body and pulp chamber of a multi-rooted tooth with shorter than normal roots. The crown appears to be within the range of normal.
Radiographic Features:
Location: Most commonly seen on mandibular molars, but can be associated with any multi-rooted tooth.
Edge: Well-defined.
Shape: Elongated body of a tooth with shortened roots.
Internal: Radiopaque, same radiopacity as tooth structure.
Other: None.
Number: Can be either single or multiple.
Taurodontism
(note the enlongated body and pulp chamber of the second molar – #18)
Taurodontism
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