>>213348192
>A gummy smile, known as excessive gingival display
>Teeth that appear short because they erupted improperly and remain partially covered by gum tissue
>Teeth that are small in comparison to the gums due to genetics or wear
>An upper lip that is too short
>A hyperactive upper lip that is normal in length when the face is resting but lifts too high when smiling exposing a lot of gum tissue
>Gums that are long or enlarged, known as gingival hypertrophy
>An overgrowth of the upper jaw, called vertical maxillary excess, that makes gums bulge out
I have also heard it is the result of not having a upper Labial Frenum.