A gummy smile, known as excessive gingival display, is when you smile and too much gum tissue shows above the top teeth.
However, there have been studies to determine what people consider excessive gingival display. In most cases, subjects rated smiles as attractive when two millimetres or less of gum tissue was exposed. At around three millimetres or more, the smile was thought to be gummy. The condition seems to be more common in women than men.
How does it work?
Botulinum is injected just above the smile, at the intersection of three muscles called the Yonsei Point. The toxin works by temporarily denervate the elevator muscles that cause the upper lip to excessively lift, hence showing too much gum tissue.
Results duration
Result lasts for around three or four months.