Nicole Kidman's smile is a useful example of a common cosmetic concern: gum display. Some people show very little gum tissue when they smile. Others show a lot. Dentists often describe this as a high smile line, and when the gum display feels excessive, patients may call it a gummy smile.

In Dr. Lawnin's celebrity smile rating, Nicole Kidman received an average score with a thoughtful explanation. He noted that a high smile line is not automatically a problem. Showing all of the teeth and some gum tissue can be completely normal. The question is whether the gum display feels balanced for the face.

What is a gummy smile?

A gummy smile usually refers to a smile that shows more gum tissue than the patient wants to show. There is no single universal cutoff that applies to every person because beauty is not just a measurement. Facial shape, lip length, tooth size, gum levels, and personal preference all matter.

Some patients have a high smile line and love it. Others feel like their gums dominate the smile. The goal of treatment, if treatment is chosen, is not to erase expression. It is to create better balance between teeth, gums, and lips.

What causes a gummy smile?

A gummy smile can have several causes. The upper lip may lift higher when smiling. The teeth may appear short because extra gum tissue covers part of them. The upper jaw may sit in a position that naturally shows more gum tissue. Teeth may be worn or positioned in a way that changes the proportions of the smile.

Because the causes are different, the treatments are different too. This is why a careful exam matters. A treatment that works beautifully for one patient may be wrong for another.

Is a high smile line always bad?

No. Dr. Lawnin was clear that it is okay to have a high smile line. Some gum display can look youthful, expressive, and natural. The concern is when the amount of gum display feels excessive or distracts from the teeth and face.

This is an important point because patients sometimes assume every visible gum line needs correction. It does not. If the smile is healthy, balanced, and the patient likes it, treatment may not be necessary.

Treatment options for a gummy smile

Treatment depends on the cause. Some patients may benefit from Botox if the upper lip is hyperactive and lifts too high. Others may need gum contouring or crown lengthening if the teeth appear short because of excess gum tissue. Some cases may involve orthodontics. In more complex situations, surgical options such as lip repositioning or jaw surgery may be discussed.

The key is diagnosis. A gummy smile should not be treated with a one-size-fits-all approach. A patient needs to understand why the gum display is happening before deciding how to change it.

Why natural contours still matter

One thing Dr. Lawnin liked about Nicole Kidman's smile was that the teeth retained natural contours along the edges. Even when gum display is part of the conversation, tooth shape still matters. If the teeth look flat, overly square, or artificial, correcting the gum line alone will not create a natural smile.

A balanced smile includes the teeth, gums, lips, and face. That is why smile design should always look beyond one feature.

The patient takeaway

Nicole Kidman's smile teaches patients that gum display is not automatically a flaw. A high smile line can be completely normal. But if you feel like your gums dominate your smile, there may be conservative or comprehensive options to improve the balance.

The right treatment starts with identifying the cause. From there, the goal is not to create a frozen or generic smile. The goal is to keep the expression and improve the harmony.

‍Concerned about a gummy smile or uneven gum display? Schedule a smile evaluation at Tanglewood Dental Associates to understand the cause and your options.

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