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Comparison of effectiveness between botulinum toxins and placebo on bruxism events assessed through electromyogram (EMG)
| Study or subgroup | Botulinum toxins (n) | Mean (SD) | Saline (n) | Mean (SD) | Mean difference inverse variance, random, 95% |
|---|---|---|---|---|---|
| 4 weeks after injection | 6 | 0.59 (0.57) | 6 | 4.13 (1.31) | −3.54 [−4.68, −2.40] |
| 8 weeks after injection | 6 | 1.33 (1.1) | 6 | 4.12 (0.89) | −2.79 [−3.92, −1.66] |
| 12 weeks after injection | 6 | 1.7 (0.91) | 6 | 4.4 (1.52) | −2.70 [−3.92, −1.66] |
