Dentinogenesis Imperfecta

Definition: Genetic disturbances in dentin formation leading to altered morphology of dentin.  The teeth will appear bluish gray.  There are three identified types (I, II, III).  Type I is associated with osteogenesis imperfecta.

Radiographic Features:

Location: Dentin.

Edge: Well-defined.

Shape: Bulbous crowns with short and slender roots.

Internal: Radiopaque, same radiopacity as dentin.  No or small pulp chamber and root canals present.

Other: None.

Number: Associated with all teeth in the oral cavity.

(click image to enlarge)

Dentinogenesis imperfecta

(note the bulbous crowns and absent pulp chambers and root canal)

Dentinogenesis imperfecta

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