Aetiology | Root morphology | (mm) | Type I | Type II | Type III | Type IV | In total n = 116 | P△ |
---|---|---|---|---|---|---|---|---|
Dens evaginatus | Apical foramen size | < 2.65 | 31 (81.6%) | 4 (10.5%) | 2 (5.3%) | 1 (2.6%) | 38 (46.3%) | 0.319 |
≥ 2.65 | 40 (90.9%) | 4 (9.1%) | 0 (0.0%) | 0 (0.0%) | 44 (53.7%) | |||
Root length | < 11.50 | 35 (87.5%) | 5 (12.5%) | 0 (0.0%) | 0 (0.0%) | 40 (48.8%) | 0.486 | |
≥ 11.50 | 36 (85.7%) | 3 (7.1%) | 2 (4.8%) | 1 (2.4%) | 42 (51.2%) | |||
Root thickness | < 1.41 | 39 (81.3%) | 7 (14.6%) | 1 (2.1%) | 1 (2.1%) | 48 (58.5%) | 0.182 | |
≥ 1.41 | 32 (94.1%) | 1 (2.9%) | 1 (2.9%) | 0 (0.0%) | 34 (41.5%) | |||
Trauma | Apical foramen size | < 3.00 | 13 (52.0%) | 1 (4.0%) | 1 (1.0%) | 10 (40.0%) | 25 (73.5%) | 0.001** |
≥ 3.00 | 2 (22.2%) | 0 (0.0%) | 6 (66.7%) | 1 (11.1%) | 9(26.5%) | |||
Root length | < 12.90 | 8(42.1%) | 1 (5.3%) | 4 (21.1%) | 6 (31.6%) | 19 (55.9%) | 1.000 | |
≥ 12.90 | 7 (46.7%) | 0 (0.0%) | 3 (20.0%) | 5 (33.3% | 15 (44.1%) | |||
Root thickness | < 1.41 | 4 (40.0%) | 0 (0.0%) | 2 (20.0%) | 4 (40.0%) | 10 (29.4%) | 0.921 | |
≥ 1.41 | 11 (45.8%) | 1 (4.2%) | 5 (20.8%) | 7 (63.6%) | (70.6%) |