| Variables for DPR images | Total | Chi-square | P value | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Variables for CBCT images | Interruption in white line of IAC | Diversion of IAC | Narrowing of IAC | Darkening of roots | Other | Â | Â | Â | ||
Types of IMTM | Type A | n | 41 | 8 | 8 | 40 | 5 | 102 | 10.4783 | 0.233 |
 | % | 40.2 | 7.8 | 7.8 | 39.2 | 4.9 | 100.0 |  |  | |
Type B | n | 32 | 5 | 11 | 20 | 2 | 70 | Â | Â | |
 | % | 45.71 | 7.14 | 15.71 | 28.57 | 2.86 | 100.00 |  |  | |
Type C | n | 38 | 12 | 13 | 59 | 4 | 126 | Â | Â | |
 | % | 30.16 | 9.52 | 10.32 | 46.83 | 3.17 | 100.00 |  |  | |
Total | n | 111 | 25 | 32 | 119 | 11 | 298 | Â | Â | |
 | % | 37.25 | 8.39 | 10.74 | 39.93 | 3.69 | 100.00 |  |  | |
Buccolingual relationship of IAC-IMTM | Buccal | n | 21 | 2 | 4 | 21 | 1 | 49 | 11.351 | 0.499 |
 |  | % | 42.9 | 4.1 | 8.2 | 42.9 | 2.0 | 100.0% |  |  |
 | Lingual | n | 68 | 16 | 22 | 80 | 9 | 195 |  |  |
 |  | % | 34.9 | 8.2 | 11.3 | 41.0 | 4.6 | 100.0% |  |  |
 | Interradicular | n | 5 | 0 | 1 | 7 | 0 | 13 |  |  |
 |  | % | 38.5 | 0.0 | 7.7 | 53.8 | 0.0 | 100.0% |  |  |
 | Inferior | n | 17 | 7 | 5 | 11 | 1 | 41 |  |  |
 |  | % | 41.5 | 17.1 | 12.2 | 26.8 | 2.4 | 100.0% |  |  |
 | Total | n | 111 | 25 | 32 | 119 | 11 | 298 |  |  |
 |  | % | 37.2 | 8.4 | 10.7 | 39.9 | 3.7 | 100.0% |  |  |
Position of IAC-IMTM | Contact | n | 61 | 23 | 27 | 101 | 1 | 213 | 54.113 | 0.000* |
 | % | 28.6 | 10.8 | 12.7 | 47.4 | 0.5 | 100.0% |  |  | |
No contact | n | 50 | 2 | 5 | 18 | 10 | 85 | Â | Â | |
 | % | 58.8 | 2.4 | 5.9 | 21.2 | 11.8 | 100.0% |  |  | |
Total | n | 111 | 25 | 32 | 119 | 11 | 298 | Â | Â | |
 | % | 37.2 | 8.4 | 10.7 | 39.9 | 3.7 | 100.0% |  |  | |
Mandible shape | Type 1 | n | 46 | 13 | 15 | 62 | 1 | 137 | 13.720 | 0.089 |
 |  | % | 33.6 | 9.5 | 10.9 | 45.3 | 0.7 | 100.0% |  |  |
 | Type 2 | n | 13 | 1 | 4 | 5 | 1 | 24 |  |  |
 |  | % | 54.2 | 4.2 | 16.7 | 20.8 | 4.2 | 100.0% |  |  |
 | Type 3 | n | 52 | 11 | 13 | 52 | 9 | 137 |  |  |
 |  | % | 38.0 | 8.0 | 9.5 | 38.0 | 6.6 | 100.0% |  |  |
 | Total | n | 111 | 25 | 32 | 119 | 11 | 298 |  |  |
 |  | % | 37.2 | 8.4 | 10.7 | 39.9 | 3.7 | 100.0% |  |  |