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Relationship between panoramic radiograph signs and impacted tooth angulation.
| Panoramic radiograph sign | Tooth angulation |
||||
|---|---|---|---|---|---|
| D |
H |
M |
V |
Total |
|
| No. | No. | No. | No. | No. | |
| Interruption of IAC white line | 15 | 3 | 99 | 9 | 126 |
| Darkening in root apex | 0 | 0 | 21 | 3 | 24 |
| Narrowing of IAC | 3 | 3 | 6 | 0 | 12 |
| Interruption, narrowing of IAC | 0 | 9 | 9 | 0 | 18 |
| Interruption, diversion of IAC | 3 | 0 | 12 | 0 | 15 |
| Interruption of IAC, darkening in root apex | 0 | 0 | 9 | 0 | 9 |
IAC, inferior alveolar canal.
