Definition: A tooth that is significantly smaller than average for its type.
Radiographic Features:
- Location: Most frequently affects:
- Third molars
- Supernumerary teeth
- Maxillary lateral incisors (peg laterals)
- Edge: Well-defined
- Shape: Reduced tooth size, maintaining general tooth morphology
- Internal structure:
- Radiopaque: Enamel and dentin (smaller than normal)
- Radiolucent: Pulp chamber and root canal
- Number: May be single or multiple teeth affected
Key points:
- More common than macrodontia
- Can occur in primary or permanent dentition
- Peg lateral: Specific term for microdontic maxillary lateral incisors
Clinical significance:
- May cause spacing issues and aesthetic concerns
- Can complicate occlusion and alignment
- May require restorative or prosthodontic treatment for aesthetics and function
- Often associated with hypodontia or other dental anomalies
Note: Consider genetic factors and potential systemic conditions when multiple microdontic teeth are present. Early diagnosis allows for better treatment planning and management.