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Oculo-oral synkinesis: (A) voluntary eye closure on the left and an involuntary movement of the oral commissure on the non-paralyzed side due to aberrant activity of the buccinator muscle. (B) Injection points: Lateral portion and pre-tarsal region of Orbicularis oculi; Depressor labii inferioris and lip elevators—zygomatic major and minor, levator labii superioris and levator labii superioris alaeque nasi. (C) Clinical result 15 days after Botulinim toxin type A (BoNT-A) injection.
