Table 2.
Comparison of open gingival embrasures between the non-occurrence and occurrence groups in the mandible
| Variables | Non-occurrence (N = 74) | Occurrence (N = 51) | P value |
|---|---|---|---|
| Age, years | 24.5 ± 7.3 | 26.4 ± 5.6 | 0.113 |
| Treatment duration, months | 27.1 ± 12.5 | 28.1 ± 12.0 | 0.692 |
| Gender | 0.374 | ||
| Female | 61 (82.4) | 45 (88.2) | |
| Male | 13 (17.6) | 6 (11.8) | |
| Malocclusion | 0.864 | ||
| Class I | 37 (50.0) | 28 (54.9) | |
| Class II | 30 (40.5) | 18 (35.3) | |
| Class III | 7 (9.5) | 5 (9.8) | |
| IPR in anterior teeth | 0.199 | ||
| 0 mm | 29 (39.2) | 18 (35.3) | |
| 0–2 mm | 17 (23.0) | 19 (37.3) | |
| ≥ 2 mm | 28 (37.8) | 14 (27.5) | |
| IPR in incisors | 0.683 | ||
| 0 mm | 34 (45.9) | 21 (41.2) | |
| 0–1 mm | 18 (24.3) | 16 (31.4) | |
| ≥ 1 mm | 22 (29.7) | 14 (27.5) | |
| IPR in central incisors | 0.653 | ||
| 0 mm | 42 (56.8) | 31 (60.8) | |
| > 0 mm | 32 (43.2) | 20 (39.2) | |
| Attachments in anterior teeth | 0.021* | ||
| 0a | 13 (17.6) | 1 (2.0) | |
| 1-2b | 29 (39.2) | 21 (41.2) | |
| > 2b | 32 (43.2) | 29 (56.9) | |
| Attachments in incisors | 0.222 | ||
| 0 | 45 (60.8) | 31 (60.8) | |
| 1–2 | 25 (33.8) | 13 (25.5) | |
| > 2 | 4 (5.4) | 7 (13.7) | |
| Attachments in central incisors | 0.022* | ||
| 0a | 66 (89.2) | 40 (78.4) | |
| 1a | 7 (9.5) | 4 (7.8) | |
| 2b | 1 (1.4) | 7 (13.7) | |
Data are given as mean ± SD or N (%)
IPR interproximal enamel reduction
P value < 0.05 was considered significant (*) given in Bold