Table 5 Distribution and Prevalence of occlusal features by oral habits in the 5 years old sample
From: Occlusal features of 5-year-old Greek children: a cross-sectional national study
Occlusal features | Sucking of finger or thumb | Use of pacifier | ||||
|---|---|---|---|---|---|---|
Total N (%) | Yes N (%) | No N (%) | Yes N (%) | No N (%) | ||
Bilateral second primary molar relationship (N = 1200) | Flush terminal plane | 538 (44.8) | 38 (37.6) | 500 (45.5) | 16 (38.1) | 514 (44.9) |
Distal step | 211 (17.6) | 24 (23.8) | 187 (17.0) | 11 (26.2) | 199 (17.4) | |
Mesial step | 222 (18.5) | 13 (12.9) | 209 (19.0) | 5 (11.9) | 216 (18.9) | |
Flush terminal plane-distal step | 110 (9.2) | 16 (15.8) | 94 (8.6) | 1 (2.4) | 106 (9.3) | |
Flush terminal plane-mesial step | 75 (6.3) | 8 (7.9) | 67 (6.1) | 7 (16.7) | 69 (6.0) | |
Distal-mesial step | 25 (2.1) | 1 (1.0) | 24 (2.2) | 1 (2.4) | 23 (2.0) | |
Unspecified | 19 (1.6) | 1 (1.0) | 18 (1.6) | 1 (2.4) | 18 (1.6) | |
Total | 1200 (100) | 101 (100) | 1099 (100) | 42 (100) | 1145 (100) | |
Chi-square = 12.292, p = 0.056 | Chi-square = 12.734, p = 0.047 | |||||
Bilateral primary canine relationship N = 1198 | Class I | 625 (52.2) | 41 (40.6) | 584 (53.2) | 18 (42.9) | 601 (52.6) |
Class II | 307 (25.6) | 38 (37.6) | 269 (24.5) | 16 (38.1) | 289 (25.3) | |
Class III | 29 (2.4) | 1 (1.0) | 28 (2.6) | 0 (0.0) | 28 (2.4) | |
Asymmetry | 235 (19.6) | 20 (19.8) | 215 (19.6) | 8 (19.0) | 223 (19.5) | |
Unspecified | 2 (0.1) | 1 (1.0) | 1 (0.1) | 0 (0.0) | 2 (0.2) | |
Total | 1198 (100) | 101 (100) | 1097 (100) | 42 (100) | 1143 (100) | |
Chi-square = 14.440, p = 0.006 | ||||||
Overjet N = 1199 | Reverse | 19 (1.5) | 1 (1.0) | 18(1.6) | 0 (0.0) | 19 (1.7) |
Normal (0-2 mm) | 558 (46.5) | 27 (26.7) | 531 (48.4) | 14 (33.3) | 537 (46.9) | |
Increased (> 2 mm) | 454 (37.9) | 57 (56.4) | 397 (36.2) | 20 (46.7) | 430 (37.6) | |
Zero | 11 (1) | 0 (0.0) | 11 (1.0) | 0 (0.0) | 11 (1.0) | |
Unspecified | 157 (13.1) | 16 (15.8) | 141 (12.8) | 8 (19.0) | 147 (12.8) | |
Total | 1199 (100) | 101 (100) | 1098 (100) | 42 (100) | 1144 (100) | |
Chi-square = 21.235, p < 0.001 | ||||||
Overbite N = 1198 | Open bite | 55 (4.6) | 13 (12.9) | 42 (3.8) | 8 (19) | 46 (4.0) |
Normal | 485 (40.5) | 30(29.7) | 455 (41.5) | 13 (31) | 469 (41.0) | |
Increased | 481 (40.6) | 42 (41.6) | 439 (40.0) | 15 (35.7) | 460 (40.2) | |
Zero | 21 (1.8) | 2 (2.0) | 19 (1.7) | 1 (2.4) | 19 (1.7) | |
Unspecified | 156 (13.0) | 14 (13.9) | 142 (12.0) | 5 (11.9) | 149 (13.0) | |
Total | 1198 (100) | 101 (100) | 1097 (100) | 42 (100) | 1143 (100) | |
Chi-square = 19.788, p = 0.001 | Chi-square = 21.447, p < 0.001 | |||||
Anterior crossbite N = 1198 | Yes | 58 (4.8) | 8 (7.9) | 50 (4.6) | 1 (2.4) | 56 (4.9) |
No | 1140 (95.2) | 93 (92.1) | 1047 (95.4) | 41 (97.6) | 1087 (95.1) | |
Total | 1198 (100) | 101 (100) | 1097 (100) | 42 (100) | 1143 (100) | |
Posterior crossbite N = 1198 | Unilaterally | 106 (8.8) | 10 (9.9) | 96 (8.8) | 5 (11.9) | 98 (8.6) |
On both sides | 14 (1.2) | 2 (2.0) | 12 (1.1) | 1 (2.4) | 13 (1.1) | |
No | 1077 (89.9) | 89 (88.1) | 988 (90.1) | 36 (85.7) | 1031 (90.2) | |
Total | 1198 (100) | 101 (100) | 1097 (100) | 42 (100) | 1143 (100) | |
Maxillary-mandibular spacing N = 1197 | On both maxilla and mandible | 673 (56.2) | 56 (55.4) | 617 (56.3) | 26 (61.9) | 635 (55.6) |
Maxilla yes-mandible no | 177 (14.8) | 16 (15.8) | 161 (14.7) | 9 (21.4) | 169 (14.8) | |
No | 347 (29.0) | 29 (28.7) | 318 (29.0) | 7 (16.7) | 338 (29.6) | |
Total | 1197 (100) | 101 (100) | 1096 (100) | 42 (100) | 1142 (100) | |
Chi-square = 15.587, p = 0.049 | ||||||