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Assessment of facial movement according to Chevalier [FONSECA et al., 2015].
| Level | Description |
|---|---|
| 0 | Contraction not visible to the naked eye nor with oblique light incidence |
| 1 | Slight mobility of skin |
| 2 | The skin has more mobility. Wrinkles are lightly perceived |
| 3 | The skin moves more clearly. The number of wrinkles increases, as well as their depth |
| 4 | The movement takes place in a wide, synchronous, and symmetrical manner in relation to the uninjured side |
