Table 2.
Distribution of DAI components according to various disability conditions
| DAI components | MD | MD + CP | MD + A | DS | MD + S-HI | MD + LD | Total | P value | |
|---|---|---|---|---|---|---|---|---|---|
| Missing teeth | 0 | 94 (87.0) | 50 (90.9) | 13 (92.9) | 26 (72.2) | 9 (75) | 18 (100) | 210 (86.4) | 0.037 |
| ≥1 | 14 (13.0) | 5 (9.1) | 1 (7.1) | 10 (27.8) | 3 (25) | 0 (0) | 33 (13.6) | ||
| Incisal segment crowding | 0 | 15 (13.9) | 12 (21.8) | 7 (50) | 0 (0) | 1 (8.3) | 2 (11.1) | 37 (15.2) | <0.001 |
| 1-2 | 93 (86.1) | 43 (78.2) | 7 (50) | 36 (100) | 11 (91.7) | 16 (88.9) | 206 (84.8) | ||
| Incisal segment spacing | 0 | 46 (42.6) | 27 (49.1) | 7 (50) | 18 (50) | 6 (50) | 9 (50) | 113 (46.5) | 0.944 |
| 1-2 | 62 (57.4) | 28 (50.9) | 7 (50) | 18 (50) | 6 (50) | 9 (50) | 130 (53.5) | ||
| Midline diastema | 0 | 72 (66.7) | 45 (81.8) | 8 (57.1) | 31 (86.1) | 8 (66.7) | 14 (77.8) | 178 (73.3) | 0.081 |
| ≥1 mm | 36 (33.3) | 26 (47.3) | 7 (50) | 35 (97.2) | 10 (83.3) | 13 (72.2) | 166 (68.3) | ||
| Largest anterior maxillary irregularity | 0 | 36 (33.3) | 26 (47.3) | 7 (50) | 1 (2.8) | 2 (16.7) | 5 (27.8) | 77 (31.7) | <0.001 |
| ≥1 mm | 72 (66.7) | 29 (52.7) | 7 (50) | 35 (97.2) | 10 (83.3) | 13 (72.2) | 166 (68.3) | ||
| Largest anterior mandibular irregularity | 0 | 21 (19.4) | 17 (30.9) | 6 (42.9) | 6 (16.7) | 1 (8.3) | 3 (16.7) | 54 (22.2) | 0.124 |
| ≥1 mm | 87 (80.6) | 38 (69.1) | 8 (57.1) | 30 (83.3) | 11 (91.7) | 15 (83.3) | 189 (77.8) | ||
| Anterior maxillary overjet | 0-2 mm | 26 (24.1) | 16 (29.1) | 2 (14.3) | 24 (66.7) | 4 (33.3) | 6 (33.3) | 78 (33.1) | <0.001 |
| ≥3 mm | 82 (75.9) | 39 (70.9) | 12 (85.7) | 12 (33.3) | 8 (66.7) | 12 (66.7) | 165 (67.9) | ||
| Anterior mandibular overjet | 0 | 104 (96.3) | 52 (94.5) | 13 (92.9) | 30 (83.3) | 11 (91.7) | 18 (100) | 228 (93.8) | 0.096 |
| ≥1 mm | 4 (3.7) | 3 (5.5) | 1 (7.1) | 6 (16.7) | 1 (8.3) | 0 (0) | 15 (6.2) | ||
| Vertical anterior openbite | 0 | 91 (84.3) | 44 (80) | 12 (85.7) | 25 (69.4) | 11 (91.7) | 15 (83.3) | 198 (81.5) | 0.401 |
| ≥1 mm | 17 (15.7) | 11 (20) | 2 (14.3) | 11 (30.6) | 1 (8.3) | 3 (16.7) | 45 (18.5) | ||
| Antero-posterior molar relationship | Normal | 20 (18.5) | 9 (16.4) | 2 (14.3) | 2 (5.6) | 2 (16.7) | 1 (5.6) | 36 (14.8) | <0.001 |
| Half cusp deviation | 50 (46.3) | 25 (45.5) | 5 (35.7) | 2 (5.6) | 2 (16.7) | 6 (33.3) | 90 (37) | ||
| Full cusp deviation | 38 (35.2) | 21 (38.2) | 7 (50) | 32 (88.9) | 8 (66.7) | 11 (61.1) | 117 (48.1) | ||
MD Mental disability, CP Cerebral palsy, DS Down’s syndrome, LD Learning disability, A – Autism, S-HI Sensory-hearing impairment.