The thickness of dentin varies depending on the location within the tooth. Based on a study examining the coronal third of roots, the average dentin thickness in pre-instrumentation CBCT axial sections (1–5 mm from the crown) is as follows:
Dentin Thickness Measurements
| Location | Average Thickness (mm) |
|---|---|
| Buccal Dentin | 2.68 |
| Lingual Dentin | 2.72 |
| Mesial Dentin | 1.82 |
| Distal Dentin | 1.85 |
As seen in the table, the lingual dentin is slightly thicker than the buccal dentin, while the mesial and distal dentin are significantly thinner. These measurements highlight the variations in dentin thickness around the tooth's circumference.
Key Takeaways
- Variability: Dentin thickness is not uniform.
- Coronal Third: The provided measurements are specifically for the coronal third of the root.
- Clinical Relevance: Understanding dentin thickness is crucial for various dental procedures, especially those involving tooth preparation and endodontic treatment.
