Definition: An abnormal curvature of a tooth root or roots.
Radiographic Features:
- Location: Can affect any tooth in the oral cavity
- Edge: Well-defined
- Shape: Root with severe curvature, tapering towards the apex
- Internal structure: Radiopaque, similar to normal tooth structure
- Number: May affect single or multiple teeth
Key points:
- Can occur in any direction (mesial, distal, facial, or lingual)
- Facial or lingual curvatures may be difficult to detect on 2D images
- May appear as a “target” or “bull’s-eye” on periapical radiographs, but not always
Clinical significance:
- Can complicate tooth eruption
- May pose challenges for endodontic treatment
- Potential difficulty in tooth extraction
- Possible impact on orthodontic treatment planning
Note: 3D imaging (e.g., CBCT) may be necessary for accurate diagnosis and treatment planning, especially for facial or lingual dilacerations not clearly visible on 2D radiographs.