Gummy Smile

Smiling is perhaps one of the most important facial expressions that occur using facial muscles. The first key to the feeling of self-confidence, the combination of words with emotion, the reflection of the self, the perfect magic of the ability to express begins with laughing. A balanced, impressive and cute smile that is compatible with facial structures plays an important role in interpersonal relations in society. On the contrary, an unaesthetic smile is considered a repulsive visual perception and causes the person to be perceived as unhappy, grumpy and irritable.

Gummy smile, as the name suggests, is the smile line on the gingiva. In other words, the gingival tissue appears much more than it should during laughing.

The relationship of the upper and lower lips during laughing and the position of the front teeth in this relationship are important. In the normal position, the upper lip covers 2/3 of the upper jaw anterior incisors. Anterior incisors of 2-4 mm are visible from the upper lips. Especially in women, the fact that the anterior incisors are long causes the anterior upper teeth to be more prominent during laughing. During laughing, the upper incisors become fully visible and even the upper gingiva is 1-2 mm visible. However, in some cases, the amount of gingiva that appears increased is also accepted and gives the person a younger appearance.

In some people, the upper lips are located higher, and in these people, the maxilla anterior incisors and even the gums are visible without smiling. This is called “gummy smile”.

The tip of the nose moves downwards and backwards while laughing. This can be evaluated with normal and smiling photographs of the patient.

The muscle responsible for this smile aesthetic problem is the depressor septic nasi muscle. This muscle starts from the nasal septum and extends to the orbicularis oris muscle, which is the lower perioral muscle.

In the studies performed with this muscle, 3 different variations have been observed in its fusion with the orbicularis muscle below.

Especially in people with type I and II depressor nasi musculature, the tip of the nose is pulled down during laughing, the upper lip is shortened, the visibility of the anterior gingiva increases and a transverse line develops in the middle of the philtrum.

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