A gummy smile, also known as excessive gingival display, occurs when a significant portion of the gums shows when a person smiles. This can make the teeth appear shorter and the smile look less balanced or aesthetic. Gummy smiles can be due to factors like an overactive upper lip muscle, short upper teeth, or a high gum line. Some people are very self-conscious about their gummy smile. Fortunately, there are non-surgical options, like the lip flip or other modalities, that can help reduce the appearance of a gummy smile by relaxing the muscles around the upper lip.