Causes of gummy smile. There are several reasons a gummy smile can occur, relating to: Tooth issues; Gum issues; Lip issues; Jaw issues; Tooth issues. Teeth may be too small, which can be genetic or as a result of use. A smile is generally thought to be gummy if 3 to 4 millimeters of gum tissue are visible when smiling. Different cultures also have differing opinions on what a gingival smile is. Although only a small percentage of both men and women suffer from what they consider a gummy smile, it is a condition that creates self-consciousness. A lip flip is a cosmetic procedure where a doctor injects Botox into the muscle immediately above the top lip. The Botox relaxes the muscle, which causes the lip to flip up, giving the appearance How is The Gummy Smile Correction Process?. As you can understand from the treatment options explained above, the correction process of a gummy smile depends on the cause and some other treatment-based factors. So basically, we can categorize the correction process into two: surgical corrections and non-surgical corrections. Surgical Correction Process A gingival smile line is the dental term used to describe the exposure of the upper gum tissue when smiling naturally. It is also sometimes called gummy smile, high lip line, and full denture smile. Aesthetically speaking, cosmetic dentists generally consider an ideal smile to be one where the upper lip covers both the upper gum line, as well An Esthetic Problem or Something More? The smile line or esthetic zone - the teeth that are showing when you are smiling - is determined by several factors, including: The shape and size of your lips. Your facial muscles. The shape and size of your teeth. Your gum tissue. It is a common clinical condition, which can be caused by an abnormal dental eruption (delayed passive eruption), hyperfunction of the upper lip elevator muscle, excessive vertical growth of the maxilla bone, over-eruption of the maxillary anterior teeth, or a combination of the above described factors. The authors propose a complete adult classification of the causes identified for gummy smile (GS) and short tooth syndrome (STS) to ascertain the etiopathogenetic origin(s). Used in combination When the upper and lower jaws are not in the right place to each other. A bad bite can cause jaw pain, teeth that don\'t line up right, and a gummy smile, among other things. Most of the time, a bad bite that pushes the upper jaw forward out of place causes the gums to look too big. Hyperactivity In The Upper Lip. A hyperactive upper lip is The maxillary gum line and the incisal edge creates the curve of your smile. It should create a slight upward curve and narrow toward the ends. 3. Gum Display. The particular combination of muscles that activate to create your smile determines how much of your gums you show. Too much gum display leads to a gummy smile. nyFve.