Definition: A developmental anomaly characterized by an outfolding of enamel from the occlusal or incisal surface of a tooth.
Radiographic Features:
- Location: Most commonly on lateral incisors and premolars
- Edge: Well-defined
- Shape: Triangular projection
- Internal structure: Radiopaque, with enamel-like density
- Number: Usually singular per tooth, but multiple teeth may be affected
Key points:
- Less common than dens invaginatus
- May contain a small pulp horn extension
- Can occur on multiple teeth in the same individual
Clinical significance:
- Increased risk of pulp exposure due to wear or fracture of the projection
- May interfere with occlusion
- Potential for periodontal problems if located near gingival margin
- Early detection important for preventive measures
Note: Regular monitoring is essential to prevent complications. Treatment may include selective grinding, bonding, or other protective measures depending on the size and location of the evagination.