Gummy Smile (Excessive Gingival Display)
Hyperkinetic levator labii superioris alaeque nasi muscle contraction exposing excessive gingival tissue during smiling.
A "gummy smile" (excessive gingival display) occurs when more than 3 to 4 mm of maxillary gum tissue becomes exposed during a broad smile, often causing self-consciousness when laughing.
Etiology of Hypermobile Lip Elevation
While anatomical causes may include a short clinical crown or vertical maxillary excess, the most common dynamic trigger is hyperactivity of the levator labii superioris alaeque nasi (LLSAN) muscle.
Precision Botulinum Neuromodulation
We correct gummy smiles in minutes using micro-injections of botulinum toxin at the Yonsei point. The treatment gently weakens upper lip retraction, allowing the lip to rest perfectly over the tooth-gum margin.
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