How will I differentiate bruxism in sleep REM of sleep behavior disorder REM in polysomnography?

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Prof. G. Dave Singh

Dra. Maria:

Are you using EMG recordings of the mentalis or masseter muscles? If so, you might see a discrete RERA (respiratory effort-related arousal) preceding the bruxism. It's thought that the RERA triggers the clench i.e. increased masseteric muscle activity? Hope that helps -

Maria de Lourdes Rabelo Guimarães

Prof. G. Dave Singh, thanks for the reply!

I'm using recording of the mentalis. Best also use the masseter muscles?