Table 4.
Association between occlusal characteristics and possible sleep bruxism.
| Occlusal Characteristics | Bruxism (Yes) n (%) |
Bruxism (No) n (%) |
PR | CI 95% | p |
|---|---|---|---|---|---|
| Diastemas | |||||
| Dental crowding | 62 (62.6) | 159 (62.5) | 0.9 | 0.55–1.45 | 0.656 |
| Diastemas | 37 (37.4) | 85 (34.8) | |||
| Relationship of the primary molars | |||||
| Short mesial step | 11 (11.1) | 41 (16.8) | 0.91 | 0.57–1.46 | 0.699 |
| Long mesial step | 3 (3.0) | 10 (4.1) | |||
| Distal step | 18 (18.2) | 34 (13.9) | |||
| Mixed component | 14 (14.1) | 34 (13.9) | |||
| Flush terminal plane | 53 (53.5) | 125 (51.2) | |||
| Overjet | |||||
| Presence | 27 (27.3) | 70 (28.7) | 0.93 | 0.55–1.57 | 0.792 |
| Absence | 72 (72.7) | 174 (71.3) | |||
| Open bite | |||||
| Presence | 5 (5.1) | 53 (21.7) | 0.19 | 0.07–0.50 | 0.000 |
| Absence | 94 (94.9) | 191 (78.3) | |||
| Crossbite | |||||
| Presence | 17 (17.2) | 69 (28.3) | 0.53 | 0.29–0.95 | 0.032 |
| Absence | 82 (82.9) | 175 (71.7) | |||
| Overbite | |||||
| 1/3 | 26 (26.3) | 59 (24.2) | 3.58 | 1.76–7.28 | 0.002 |
| 2/3 | 34 (34.3) | 57 (23.4) | |||
| 3/3 | 29 (29.3) | 58 (23.8) | |||
| No | 10 (10.1) | 70 (28.7) | |||
PR: prevalence ratio; CI 95%: confidence interval; p: significances chi-squared test.