Gummy Smile? Here's How Gum Contouring Can Help
By Dr. Pia Lieb
A gummy smile shows more gum tissue than most people find flattering when you smile, and gum contouring corrects it by reshaping that excess tissue to reveal more of the tooth. It is one of the most treatable cosmetic concerns in dentistry, but the right fix depends entirely on why the gum shows in the first place.
What is a gummy smile?
A gummy smile is a smile that displays an excess of gum tissue above the upper teeth, making the teeth look short even when they are a healthy, normal length. Dentists generally consider several millimeters or more of visible gum a gummy smile, though the threshold is aesthetic and personal rather than medical.
The teeth themselves are often perfectly fine. The proportion between gum, tooth, and lip is simply out of balance, which the eye reads as "too much gum."
What causes a gummy smile?
A gummy smile is caused by excess or overgrown gum tissue, a high or hyperactive upper lip, or the way the jaw and teeth erupted during development. Because these causes are different problems, the correct treatment differs too, which is why a proper assessment comes first.
The common causes:
- Excess gum tissue partly covering otherwise normal-length teeth
- Overgrown gum tissue (gingival hyperplasia) from inflammation, certain medications, or genetics
- A high lip line — the upper lip lifts unusually far when you smile
- Altered passive eruption — teeth stayed partly covered by gum as they came in
- Skeletal patterns — the upper jaw developed to display more gum
What is the most common fix for a gummy smile?
The most common cosmetic fix for a gummy smile is gum contouring, also called a gum lift or crown lengthening, which removes and reshapes excess gum tissue to expose more of each tooth. A cosmetic dentist uses a dental laser or precision instruments to sculpt a balanced, even gum line, usually in a single visit under local anesthetic.
Laser gum contouring has become the modern standard because it is:
- Precise — the dentist controls tissue removal to a fraction of a millimeter
- Low-bleeding — the laser seals tissue as it works
- Faster-healing than traditional surgical trimming
- Single-visit for most straightforward cases
Explore our gum design and recontouring treatment to see how the procedure is planned around your face.
What if the gums are not the whole problem?
When a gummy smile is driven by the lip or jaw rather than the gums alone, gum contouring by itself will not fully correct it. A hyperactive lip may need treatment that limits how high it lifts, while a skeletal cause can require orthodontics or, in complex cases, surgical repositioning of the jaw.
This is exactly why a cosmetic dentist evaluates the whole picture — gum, tooth proportion, lip movement, and bite — before choosing a tool. Treating the wrong cause produces a disappointing result.
What is recovery like, and how long do results last?
Gum contouring recovery is short, with mild tenderness for a few days and results that are immediate and long-lasting on properly rooted teeth. Most patients return to normal eating within a day or two and see the reshaped gum line the moment the procedure is done.
Recovery in brief:
- Under an hour in the chair for most cases
- Done under local anesthetic
- Mild tenderness for several days, managed with over-the-counter relief
- Permanent as long as the underlying gum and bone stay healthy
Can gum contouring be combined with other treatments?
Yes — gum contouring is often paired with veneers, bonding, or whitening to balance the entire smile. Reshaping the gums fixes proportion, but changing tooth color or shape needs a separate cosmetic treatment layered on top.
Common pairings include porcelain veneers for shape and color, or dental bonding for a more conservative touch-up. Sequenced correctly, the gum line and the teeth are designed together.
Frequently asked questions
Is gum contouring painful?
Local anesthetic eliminates pain during the procedure. Most patients report only mild tenderness for a few days afterward.
How long do gum contouring results last?
Results are generally permanent, provided the underlying gum and bone stay healthy and gum disease is controlled.
Do lasers really reshape gums?
Yes. Dental lasers are the current standard for gum contouring, offering more precision and faster healing than traditional surgical trimming.
Will gum contouring change my teeth?
No. It only reshapes the gum line. To change tooth shape or color, gum contouring is combined with bonding or veneers.
What if my gums are dark rather than too prominent?
That is a different cosmetic concern. See our post on what gum depigmentation can do for dark gums.
If a gummy smile bothers you, the encouraging reality is that it is highly treatable once the cause is identified. A consultation with a cosmetic dentist is the first step to seeing which approach fits your smile.
This article is for educational purposes only and is not a substitute for professional dental advice.