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Summary of experimental conditions
| Group | TMD | Laser application site | Therapeutic intervention |
|---|---|---|---|
| I |
Absent |
— |
Control group |
| II |
Present |
TMJ |
LLLT |
| III |
Present |
Muscles of mastication |
LLLT |
| IV |
Present |
TMJ and muscles of mastication |
LLLT |
| V | Present | TMJ and muscles of mastication | Placebo |
