Table 1. Database and search strategies.

PubMed	(Transcranial Magnetic Stimulation[mh] or Transcranial Magnetic Stimulation[tiab] or Magnetic Stimulation Transcranial[tiab] or TMS[tiab] or Transcranial Direct Current Stimulation[mh] or Transcranial Direct Current Stimulation[tiab] or tDCS[tiab] or Electrical Stimulation Transcranial[tiab]) AND (Facial Pain[mh] or Facial Pain[tiab] or Orofacial Pain[tiab] or Myofascial Pain[tiab] or Temporomandibular Joint[mh] or Temporomandibular Joint[tiab] or Temporomandibular Joint Disorders[mh] or TMJ[tiab] or TMJ Disorder*[tiab] or Jaw Diseases[mh] or Diseases Jaw[tiab] or Trigeminal Neuralgia[mh] or Trigeminal Neuralgia[tiab] or Trigeminal Nerve Diseases[mh] or Neuropathy Trigeminal[tiab] or Facial Neuralgia[mh] or Neuralgias Facial[tiab] or Neuralgia Postherpetic[mh] or Postherpetic Neuralgia[tiab] or Herpetic Neuralgia[Tiab] or Burning Mouth Syndrome[mh] or Mouth Syndromes Burning[tiab] or Neuritis[mh] or Neuritis[tiab] or Causalgia[mh] or Causalgia[tiab] or Deafferentation Pain[tiab])
Web of Science	("Facial Pain" or "Orofacial Pain" or "Myofascial Pain" or "Temporomandibular Disorders" or "Temporomandibular Joint" or TMJ or “Jaw Diseases" or "Trigeminal Neuralgia" or "Trigeminal Nerve Diseases" or "Trigeminal Neuropathy " or "Facial Neuralgia" or "Postherpetic Neuralgia " or "Herpetic Neuralgia" or "Mouth Syndromes Burning" or Neuritis or Causalgia or "Deafferentation Pain") AND (“Transcranial Magnetic Stimulation” or “Magnetic Stimulation Transcranial” or TMS or “Transcranial Direct Current Stimulation” or tDCS or “Electrical Stimulation Transcranial”)
Scopus	("Facial Pain" or "Orofacial Pain" or "Myofascial Pain" or "Temporomandibular Joint" or tmj or "Jaw Diseases" or "Trigeminal Neuralgia" or "Trigeminal Nerve Diseases" or "Trigeminal Neuropathy" or "Facial Neuralgias" or "Postherpetic Neuralgia" or "Herpetic Neuralgia" or "Burning Mouth" or neuritis or causalgia or "Deafferentation Pain") AND ("Transcranial Magnetic Stimulation" or "Magnetic Stimulation Transcranial" or tms or "Transcranial Direct Current Stimulation" or tDCS or "Electrical Stimulation Transcranial")
Cochrane	#1 MeSH descriptor: [Transcranial Magnetic Stimulation] explode all trees or "Transcranial Magnetic Stimulation" or TMS or MeSH descriptor: [Transcranial Direct Current Stimulation] explode all trees or Transcranial Direct Current Stimulation" or tDCS. #2 MeSH descriptor: [Facial Pain] explode all trees or "Facial Pain" or "Orofacial Pain" or "Myofascial Pain" or MeSH descriptor: [Temporomandibular Joint] explode all trees or "Temporomandibular Joint" or TMJ or MeSH descriptor: [Temporomandibular Joint Disorders] explode all trees or "Temporomandibular Joint Disorders" or "TMJ Disorders" or MeSH descriptor: [Jaw Diseases] explode all trees or "Jaw Diseases" or MeSH descriptor: [Trigeminal Neuralgia] explode all trees or "Trigeminal Neuralgia" or MeSH descriptor: [Trigeminal Nerve Diseases] explode all trees or "Trigeminal Nerve Diseases" or "Trigeminal Neuropathy" or MeSH descriptor: [Facial Neuralgia] explode all trees or "Facial Neuralgia" or MeSH descriptor: [Neuralgia, Postherpetic] explode all trees or "Postherpetic Neuralgia" or "Herpetic Neuralgia" or MeSH descriptor: [Burning Mouth Syndrome] explode all trees or "Burning Mouth Syndrome" or MeSH descriptor: [Neuritis] explode all trees or Neuritis or MeSH descriptor: [Causalgia] explode all trees or Causalgia or "Deafferentation Pain". #1 AND #2
LILACS	(tw:((mh:("Transcranial Magnetic Stimulation")) or (tw:("Transcranial Magnetic Stimulation")) or (tw:("Estimulação Magnética Transcraniana")) or (tw:(TMS)) or (mh:("Transcranial Direct Current Stimulation")) or (tw:("Transcranial Direct Current Stimulation")) or (tw:("Estimulação Transcraniana por Corrente Contínua")) or (tw:(tDCS)) or (tw:(ETCC)))) AND (tw:((mh:("Facial Pain")) or (tw:("Facial Pain")) or (tw:("Dor Facial")) or (tw:("Orofacial Pain")) or (tw:("Dor Orofacial")) or (tw:("Myofascial Pain")) or (tw:("Dor Miofascial")) or (mh:("Temporomandibular Joint")) or (tw:("Temporomandibular Joint")) or (tw:("Articulação Temporomandibular")) or (tw:(TMJ)) or (tw:(ATM)) or (mh:("Temporomandibular Joint Disorders")) or (tw:("TMJ Disorders")) OR (tw:("Transtornos da ATM")) or (mh:("Jaw Diseases")) or (tw:("Doenças Maxilomandibulares")) or (tw:("Diseases Jaw")) or (mh:("Trigeminal Neuralgia")) or (tw:("Trigeminal Neuralgia")) or (tw:("Neuralgia do Trigêmeo")) or (mh:("Trigeminal Nerve Diseases")) or (tw:("Neuropathy Trigeminal")) or (tw:("Doenças do Nervo Trigêmeo")) OR (mh:("Facial Neuralgia")) or (tw:("Neuralgias Facial")) or (tw:("Neuralgia Facial")) or (mh:("Neuralgia, Postherpetic")) or (tw:("Postherpetic Neuralgia")) or (tw:("Herpetic Neuralgia")) or (mh:("Burning Mouth Syndrome")) or (tw:("Mouth Syndromes Burning")) OR (tw:("Síndrome da Ardência Bucal")) or (mh:(Neuritis)) or (tw:(Neuritis)) or (mh:(Causalgia)) or (tw:(Causalgia)) or (tw:("Deafferentation Pain"))))
BBO	(tw:((mh:("Transcranial Magnetic Stimulation")) or (tw:("Transcranial Magnetic Stimulation")) or (tw:("Estimulação Magnética Transcraniana")) or (tw:(TMS)) or (mh:("Transcranial Direct Current Stimulation")) or (tw:("Transcranial Direct Current Stimulation")) or (tw:("Estimulação Transcraniana por Corrente Contínua")) or (tw:(tDCS)) or (tw:(ETCC)))) AND (tw:((mh:("Facial Pain")) or (tw:("Facial Pain")) or (tw:("Dor Facial")) OR (tw:("Orofacial Pain")) or (tw:("Dor Orofacial")) or (tw:("Myofascial Pain")) or (tw:("Dor Miofascial")) or (mh:("Temporomandibular Joint")) or (tw:("Temporomandibular Joint")) or (tw:("Articulação Temporomandibular")) or (tw:(TMJ)) or (tw:(ATM)) or (mh:("Temporomandibular Joint Disorders")) or (tw:("TMJ Disorders")) or (tw:("Transtornos da ATM")) or (mh:("Jaw Diseases")) or (tw:("Doenças Maxilomandibulares")) or (tw:("Diseases Jaw")) or (mh:("Trigeminal Neuralgia")) or (tw:("Trigeminal Neuralgia")) OR (tw:("Neuralgia do Trigêmeo")) or (mh:("Trigeminal Nerve Diseases")) or (tw:("Neuropathy Trigeminal")) or (tw:("Doenças do Nervo Trigêmeo")) or (mh:("Facial Neuralgia")) or (tw:("Neuralgias Facial")) or (tw:("Neuralgia Facial")) or (mh:("Neuralgia, Postherpetic")) or (tw:("Postherpetic Neuralgia")) or (tw:("Herpetic Neuralgia")) or (mh:("Burning Mouth Syndrome")) or (tw:("Mouth Syndromes Burning")) or (tw:("Síndrome da Ardência Bucal")) or (mh:(Neuritis)) or (tw:(Neuritis)) or (mh:(Causalgia)) or (tw:(Causalgia)) or (tw:("Deafferentation Pain"))))
EMBASE	('transcranial magnetic stimulation'/exp OR 'transcranial magnetic stimulation' OR 'transcranial magnetic stimulation':ab,ti OR 'tms':ab,ti OR 'transcranial direct current stimulation'/exp OR 'transcranial direct current stimulation' OR 'transcranial direct current stimulation':ab,ti OR 'tdcs':ab,ti) AND ('causalgia'/exp OR 'causalgia' OR 'causalgia':ab,ti OR 'deafferentation pain':ab,ti OR 'neuritis'/exp OR 'neuritis' OR 'neuritis':ab,ti OR 'burning mouth syndrome'/exp OR 'burning mouth syndrome' OR 'burning mouth syndrome':ab,ti OR 'postherpetic neuralgia'/exp OR 'postherpetic neuralgia' OR 'postherpetic neuralgia':ab,ti OR 'herpetic neuralgia':ab,ti OR 'facial neuralgia'/exp OR 'facial neuralgia' OR 'facial neuralgia':ab,ti OR 'trigeminal nerve disease'/exp OR 'trigeminal nerve disease' OR 'neuropathy trigeminal':ab,ti OR 'trigeminal neuralgia'/exp OR 'trigeminal neuralgia' OR 'trigeminal neuralgia':ab,ti OR 'jaw disease'/exp OR 'jaw disease' OR 'temporomandibular joint disorder'/exp OR 'temporomandibular joint disorder' OR 'tmj disorders':ab,ti OR 'temporomandibular joint'/exp OR 'temporomandibular joint' OR 'temporomandibular joint':ab,ti OR 'tmj':ab,ti OR 'face pain'/exp OR 'face pain' OR 'facial pain':ab,ti OR 'orofacial pain':ab,ti OR 'myofascial pain':ab,ti)
Cinahl	#1 S1 MH Transcranial Magnetic Stimulation or TI Transcranial Magnetic Stimulation or AB Transcranial Magnetic Stimulation or TI Magnetic Stimulation Transcranial or AB Magnetic Stimulation Transcranial or MH Transcranial Direct Current Stimulation or TI Transcranial Direct Current Stimulation or AB Transcranial Direct Current Stimulation or TI tDCS or AB tDCS. #2 MH Facial Pain or TI Facial Pain or AB Facial Pain or TI Orofacial Pain or AB Orofacial Pain or TI Myofascial Pain or AB Myofascial Pain or MH Temporomandibular Joint or TI Temporomandibular Joint or AB Temporomandibular Joint or MH Temporomandibular Joint Diseases or TI Temporomandibular joint disorder* or AB Temporomandibular joint disorder* or TI TMJ or AB TMJ or MH Jaw Diseases or MH Trigeminal Neuralgia or TI Trigeminal Neuralgia or AB Trigeminal Neuralgia or MH Trigeminal Nerve Diseases or TI Neuropathy Trigeminal or AB Neuropathy Trigeminal or MH Facial Neuralgia or TI Neuralgia Postherpetic or AB Neuralgia Postherpetic TI Postherpetic Neuralgia or AB Postherpetic Neuralgia or TI Herpetic Neuralgia or AB Herpetic Neuralgia or MH Burning Mouth Syndrome or TI Burning Mouth Syndrome* or AB Burning Mouth Syndrome* or MH Neuritis or TI Neuritis or AB Neuritis or MH Causalgia. #1 AND #2