Table 3.
Associations among bruxism, GERD, and severe tooth wear for the whole dentition.
| Variables | With Severe Tooth Wear (n = 224) 1 | Without Severe Tooth Wear (n = 502) 1 | Univariate Analysis | Multivariable Analysis 2 | ||
|---|---|---|---|---|---|---|
| OR (95% CI) | p-Value | OR (95% CI) | p-Value | |||
| Non-bruxism | 76 (33.9) | 287 (57.2) | Reference | Reference | ||
| Bruxism without GERD | 115 (51.3) | 180 (35.9) | 2.41 (1.71–3.51) | <0.001 | 2.89 (1.90–4.39) | <0.001 |
| Bruxism with GERD ≤5 years | 10 (4.5) | 18 (3.6) | 2.10 (0.93–4.73) | 0.074 | 2.04 (0.77–5.43) | 0.153 |
| Bruxism with GERD >5 years | 23 (10.3) | 17 (3.4) | 5.11 (2.60–10.04) | <0.001 | 4.70 (2.04–10.83) | <0.001 |
Abbreviations: CI, confidence interval; GERD, gastroesophageal reflux disease; OR, odds ratio. 1 Values listed in these columns are numbers (percentages) of subjects. 2 Adjusted for age, sex, smoking, heavy drinking, tea consumption, acidic diet, and timely rinsing.