How does dens invaginatus appear radiographically?

• A. Tear drop or hour glass pulp configuration
• B. Uniform pulp chamber with no anomalies
• C. Single canal with an extensive bifurcation
• D. Presence of multiple pulp horns without any configuration

Answer: (A)

Dens invaginatus, also known as dens in dente, is a dental anomaly resulting from the invagination of the enamel and dentin into the pulp cavity during tooth development. Radiographically, this condition often presents with a characteristic "teardrop" or "hourglass" configuration of the pulp chamber. This appearance is due to the invaginated structure affecting the natural shape and outline of the pulp space, creating an unusual morphology that can resemble a teardrop or hourglass shape.

In addition to this unique shape, the radiographic features may also show variances in the depth and extent of the invagination, which can affect treatment considerations and the prognosis for the tooth. Understanding this distinct radiographic feature is critical for diagnosing dens invaginatus and planning appropriate dental intervention.