("Administration, Topical"[mesh] OR "Iontophoresis"[Mesh]
OR "Ointments"[Mesh] OR "Gels"[Mesh] OR "transdermal patch"[mesh] OR
"Mouthwashes"[Mesh] OR "Dentifrices"[Mesh] OR topical* OR cream* OR
ointment* OR salve* OR trans-cutaneous OR transcutaneous OR
iontophor* OR Ionto-phor* OR transdermal OR trans-dermal OR unguent* OR paste* OR gel* OR rinse OR swish* OR Mouthwash* OR dentrific* OR toothpast* )
