Table 1.
Relationship between panoramic radiographic signs and presence or absence of contact between the third molar and IAC on CBCT.
| Panoramic radiograph Sign | Contact |
No contact |
Total |
||
|---|---|---|---|---|---|
| No. | % | No. | % | No. | |
| Interruption of IAC white line | 63 | 52.2 | 63 | 72.4 | 126 |
| Darkening in the root apex | 12 | 9.8 | 12 | 13.8 | 24 |
| Narrowing of IAC | 12 | 9.8 | 0 | 0 | 12 |
| Interruption, narrowing of IAC | 15 | 12.2 | 3 | 3.4 | 18 |
| Interruption of IAC, darkening in root apex | 6 | 4.9 | 3 | 3.4 | 9 |
| Interruption, diversion of IAC | 12 | 9.8 | 3 | 3.4 | 15 |
| Diversion of IAC | 0 | 0 | 3 | 3.4 | 3 |
| Darkening in root apex, diversion of IAC | 3 | 2.4 | 0 | 0 | 3 |
| Total number of cases | 123 | 100 | 87 | 100 | 210 |
IAC, inferior alveolar canal.