Table 2.
Distribution of CMI factors in BIML, CTU, and OC groups.
| Variable | Group | χ 2 p value | ||
|---|---|---|---|---|
| BIML (n = 203) | CTU (n = 44) | OC (n = 38) | ||
| Dental factors | ||||
| Malposition | 82 | 17 | 20 | 0,336 |
| Diastema | 56 | 18 | 12 | 0,214 |
| Sharp teeth | 144 | 41 | 32 | 0,003 |
| Sharp/rough restorations | 92 | 18 | 17 | 0,867 |
| Prosthetic factors | ||||
| Dentures | 76 | 20 | 21 | 0,099 |
| Sharp/rough dentures | 56 | 9 | 17 | 0,042 |
| Denture retainers | 37 | 16 | 6 | 0,019 |
| Overextended flanges | 27 | 13 | 8 | 0,024 |
| Lack of stability | 69 | 20 | 21 | 0,028 |
| Lack of retention | 37 | 14 | 19 | 0,000 |
| Functional factors | ||||
| Functional (total) | 152 | 36 | 26 | 0,373 |
| Tongue interposition | 47 | 21 | 16 | 0,001 |
| Sucking | 56 | 9 | 9 | 0,584 |
| Biting | 121 | 26 | 16 | 0,130 |
| Others | 49 | 8 | 5 | 0,564 |
CMI, Chronic Mechanical Irritation; BIML, Benign Irritative Mechanical Lesions; CTU, Chronic Traumatic Ulcer; OC, Oral Cancer. Bold denotes statistical significance.