Hi,
would love to help but am not an expert in the field.
What exactly are you looking for? Are you talking about NMES???
Where I used to work, all facial re-training was done by the Speech Language Therapists.
We only treatedBell's palsy and used NMES.
You can find some articles by using Google and keywords like 'facial palsy', 'physio', 'neuromuscular stimulation'.
E.g.
http://www.pta-kw.com/uploads/facial%20protocol.pdf
http://www.sld.cu/galerias/pdf/sitio...sis_facial.pdf
http://www.jcm.co.uk/media/cms/File/JCM84_electro.pdf
Haven't read the articles though.
Is that what you needed????
Cheers,
Fyzzio