Table 5. Multivariate regression analyses of multiple clinical/radiographic parameters to identify potential risk factors for the topographic relationship between lingual plate and the impacted mandibular third molar root.
| Variable | Contact vs Non-contact | Perforation vs Non-contact | |||
|---|---|---|---|---|---|
| P | OR (95%CI) | P | OR (95%CI) | ||
| Age | 18–25 | 1 | 1 | ||
| 26–35 | 0.8869 | 0.95 (0.48, 1.89) | 0.0457 | 2.16 (1.01, 4.59) | |
| ≥36 | 0.6532 | 1.20 (0.54, 2.69) | 0.2751 | 1.60 (0.69, 3.72) | |
| Gender | Male | 1 | 1 | ||
| Female | 0.1273 | 0.63 (0.34, 1.14) | 0.0274 | 0.47 (0.24, 0.92) | |
| Depth of impaction | Class A | 1 | 1 | ||
| Class B | 0.0277 | 0.47 (0.24, 0.92) | 0.8859 | 0.95 (0.44, 2.04) | |
| Class C | 0.0001 | 0.16 (0.06, 0.39) | 0.0004 | 0.14 (0.04, 0.41) | |
| Number of root | Single-root | 1 | 1 | ||
| Multi-root | 0.3168 | 0.72 (0.37, 1.38) | 0.3229 | 1.48 (0.68, 3.19) | |
| Morphology of lingual plate | Parallel | 1 | 1 | ||
| Undercut | 0.0874 | 1.96 (0.91, 4.22) | 0.0010 | 4.45 (1.84, 10.80) | |
| Slanted | 0.0244 | 2.44 (1.12, 5.31) | 0.0374 | 2.71 (1.06, 6.92) | |
| Round | 0.2868 | 2.19 (0.52, 9.32) | 0.2809 | 2.52(0.47, 13.53) | |
The numbers in bold indicate statistically significant with P-values less than 0.05.