The degree of pneumatization and the type of fractures in the control group
| Type of Fracture Samples M1–M10 | Pneumatization Degree | Petrous Fracture | Nonpetrous Fracture | ||||
|---|---|---|---|---|---|---|---|
| Transverse Fracture, No Fracture Lines | Longitudinal Fracture, No Fracture Lines | Oblique Fracture, No Fracture Lines | Transverse Fracture, No Fracture Lines | Longitudinal Fracture, No Fracture Lines | Oblique Fracture, No Fracture Lines | ||
| M1 | IV | 1 | – | – | 1 | – | 3 |
| M2 | III | – | – | – | – | 1 | 1 |
| M3 | IV | – | – | – | – | – | 1 |
| M4 | IV | 1 | – | – | 1 | 1 | – |
| M5 | IV | 1 | – | – | 3 | 1 | 1 |
| M6 | III | – | – | – | – | 1 | – |
| M7 | IV | – | – | – | – | 1 | – |
| M8 | IV | – | – | – | – | 1 | 1 |
| M9 | III | 1 | – | – | – | 1 | – |
| M10 | IV | – | – | – | – | 1 | 2 |
Note:—–indicates no fracture lines.