Table 2.
Relationship between the type of affected tissue, the type of trauma, and PCO
| Variables | Pulp canal obliteration | |||
|---|---|---|---|---|
|
| ||||
| Total n (%) | No n (%) | Yes n (%) | P-value | |
| Affected tissue | ||||
| Support tissue | 327 (100%) | 310 (94.8%) | 17 (5.2%) | |
| Dental tissue | 44 (100%) | 43 (97.7%) | 1 (2.3%) | 0.70** |
| Displacement | ||||
| Presence | 82 (100%) | 81 (98.8%) | 1 (1.2%) | |
| Absence | 289 (100%) | 272 (94.1%) | 17 (5.9%) | 0.14** |
| Type of traumatic injury | ||||
| Concussion | ||||
| Yes | 100 (100%) | 92 (92%) | 8 (8%) | |
| No | 271 (100%) | 261 (96.3%) | 10 (3.7%) | 0.08* |
| Subluxation | ||||
| Yes | 38 (100%) | 33 (86.8%) | 5 (13.2%) | |
| No | 333 (100%) | 320 (96.1%) | 13 (3.9%) | 0.01 * |
| Lateral luxation | ||||
| Yes | 23 (100%) | 22 (95.7%) | 1 (4.3%) | |
| No | 348 (100%) | 331 (95.1%) | 17 (4.9%) | 1.00** |
| Extrusive luxation | ||||
| Yes | 4 (100%) | 4 (100%) | 0 (0%) | |
| No | 367 (100%) | 349 (95.1%) | 18 (4.9%) | 1.00** |
| Intrusive luxation | ||||
| Yes | 23 (100%) | 23 (100%) | 0 (0%) | |
| No | 348 (100%) | 330 (94.8%) | 18 (5.2%) | 0.61** |
| Enamel Fracture | ||||
| Yes | 67 (100%) | 64 (95.5%) | 3 (4.5%) | |
| No | 304 (100%) | 289 (95.1%) | 15 (4.9%) | 1.00** |
| Enamel-dentin fractures (with no pulp exposure) | ||||
| Yes | 70 (100%) | 69 (98.6%) | 1 (1.4%) | |
| No | 301 (100%) | 284 (95.1%) | 17 (5.6%) | 0.21** |
| Enamel-dentin fractures (with pulp exposure) | ||||
| Yes | 14 (100%) | 14 (100%) | 0 (0%) | |
| No | 357 (100%) | 339 (95%) | 18 (5%) | 1.00** |
| Root Fracture | ||||
| Yes | 1 (100%) | 1 (100%) | 0 (0%) | |
| No | 370 (100%) | 352 (95.1%) | 18 (4.9%) | 1.00** |
*
Chi-square test;
**
Fisher’s exact test.
P<0.05. Bold denotes statistical association.