Gummy smile: when your smile shows more gum
One smile, several possible origins. Often, the key lies in how the face grew.
One smile, several origins
Some people show quite a lot of gum when they smile. Sometimes it doesn't bother them; other times it leads them to smile less or to cover their mouth. A gummy smile can come from the gums, the lip, the teeth or how the face grew, and often from a combination. In many cases, the main factor is the structure: excessive vertical growth that shows in the smile, but also in how the lips close and how you breathe. Understanding the origin in your case is what defines the path.
What may be behind it
While the face is developing, the upper jaw (maxilla) and the lower jaw (mandible) can grow too much vertically and rotate downward and backward, which is known as clockwise rotation. Put simply, the face "stretches" downward and backward as it grows, and this often happens because of mouth breathing. That's why it often comes with a longer face and lips that are hard to close. On top of this, there may be gums that cover part of the teeth, an upper lip that is short or rises a lot when you smile, or teeth that came down further than needed. Each origin calls for a different treatment.
How the decision is made
Fillers or Botox are often the first thing people think of. They can have their place, but they only improve the cosmetic side: when the origin lies in how the face grew, that cause is overlooked and more important problems, such as mouth breathing, can stay hidden. That's why my advice is to have a gummy smile evaluated in detail before choosing a treatment. We talk about what you notice and about your history, examine your smile and your bite, and add photographs, video and virtual 3D images. With that diagnosis, all the options are on the table, and we choose the one that fits your case.
Function and expression
Smiling is part of how you communicate and how you feel. And behind a harmonious smile there's also function: lips that close without effort and protect the gums, teeth that show in proportion, a bite in balance. When the structure of the face is part of the origin, orthognathic surgery, supported by orthodontics, moves the upper jaw to a higher position and the lower jaw follows the movement: the face regains its proportion and the smile, its balance. It's planned on a digital twin of your face, thinking about how you look and how you function, at the same time.
If you see more gum than you'd like when you smile, the first step is to find out where it comes from. We study it in detail in an evaluation.
Frequently asked questions
Why does so much gum show when I smile?
It often has to do with how the face grew: the upper and lower jaws grew too much downward and rotated backward. The gums, the lip or the position of the teeth can also play a part, and there's often more than one cause. A detailed evaluation defines which one is yours.
What does mouth breathing have to do with it?
Breathing through the mouth while the face is growing is often part of why the face "stretches" downward and backward, and that shows in the smile. That's why, at the evaluation, we also look at how you breathe: it's part of the same story.
Does a gummy smile always need surgery?
No. Orthognathic surgery, together with orthodontics, is considered when the structure of the face is part of the origin. If the cause lies in the gums, the lip or the teeth, there are other treatments. All the options are available and are chosen based on your diagnosis.
Do fillers or botulinum toxin (Botox) help?
They work on the lip and can improve what you see—botulinum toxin, temporarily—and in some cases they have their place. But when the origin lies in how the face grew, they don't reach the cause and can hide more important problems, such as mouth breathing. That's why I advise a complete diagnosis before deciding.
Can it be corrected with gum treatment?
When the gums cover part of the teeth, gum treatment can give the teeth back their proportion. If how the face grew is also involved, everything is planned together. That's why it's worth studying the whole case before deciding.
Is it related to a long face?
Often, yes. When the face "stretched" downward and backward during growth, there's usually more gum showing when smiling, a longer face and lips that are hard to close. In that case, the plan considers everything together, because it's one single story.
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