Table 2. Average height in mm from the alveolar crest to the superior position of the mandibular canal at the premolar, I molar, and II molar areas.
| Site | No. of patients | Average height (mm) |
|---|---|---|
| Premolar | 40 | 15.19±2.12 |
| I (1st) molar | 40 | 14.53±2.34 |
| II (2nd) molar | 40 | 14.21±2.23 |
Values are presented as number or mean±standard deviation.