Gummy smile treatment depends on why extra gum shows when you smile, because gums, teeth, lip movement and jaw shape can all play a part. The right option may be gum reshaping, tooth treatment, orthodontics, lip treatment or, in severe skeletal cases, jaw surgery.
Is showing gum when you smile abnormal?
Not necessarily. A smile that shows a few millimetres of gum can look completely normal, and many people find it attractive. There is no medical rule that says every smile should show only teeth.
A gummy smile simply means that more upper gum is visible than you would like when you smile. Treatment is a personal choice. If your gums and teeth are healthy and the appearance does not bother you, you do not need treatment. If it does bother you, the first step is to find out why the gum is showing. The right gummy smile treatment depends on the cause.
What causes too much gum when smiling?
There are several possible gummy smile causes, and sometimes more than one is present.
A common reason is altered passive eruption. The teeth have come into the mouth, but the gum still covers part of the natural crown. The teeth can look short or square even though their true size is normal.
The upper lip can also be involved. Some people have a short upper lip, while others have a hypermobile lip that lifts more than usual during a full smile. The teeth may be normal, but the lip exposes more gum.
Another cause is a vertically long upper jaw. This is a skeletal issue, so trimming gum alone will not correct the whole problem.
Worn-down front teeth can change the balance between teeth and gums. Teeth may become shorter because of grinding, acid wear or years of use. Some people also have teeth that are naturally small relative to the gums.
Certain medicines can cause gum overgrowth in some patients, including some medicines used for blood pressure, seizures or immune suppression. Do not stop a prescribed medicine yourself. The dentist and prescribing doctor may need to discuss the safest approach.
How do we work out the actual cause?
We check how much gum shows when your face is relaxed, when you smile gently and when you give a full smile. We also look at how far the upper lip moves.
Then we measure the visible length and proportions of the front teeth. If they look short, we need to know whether they are genuinely short or whether healthy tooth structure is hidden under the gum.
The gum line and bone level matter too. X-rays help us assess the supporting bone. In some cases, further measurements are needed before deciding whether simple gum contouring is enough or whether crown lengthening is more appropriate.
We also check your bite, tooth wear and tooth position. If position is contributing, moving the teeth may make more sense than removing gum.
| Cause | How it is identified | Usual treatment |
|---|---|---|
| Gum covering part of the natural tooth | Short-looking teeth, gum and bone measurements, X-rays | Gum contouring or crown lengthening |
| Short or very mobile upper lip | Lip length and movement checked at rest and on smiling | Botulinum toxin in selected cases or lip repositioning surgery |
| Vertically long upper jaw | Facial proportions, dental examination, X-rays and specialist assessment | Jaw surgery in severe skeletal cases |
| Worn or naturally small front teeth | Tooth measurements, wear pattern and bite assessment | Bonding, veneers or other restorative treatment |
| Tooth position contributing to gum display | Bite and tooth position assessment | Braces or aligners |
| Medicine-related gum overgrowth | Medical history, gum examination and medicine review | Gum care, medicine review with the doctor, and sometimes gum surgery |
Which gummy smile treatment is used for each cause?
Gum contouring and crown lengthening
If gum is covering part of a normally shaped tooth, gum contouring can expose more tooth and move the gum line upwards.
Crown lengthening is a minor surgical procedure in which the gum is reshaped and, when needed, a small amount of bone around the tooth is adjusted. The aim is to create a healthy relationship between the gum edge, bone and tooth. Bone should not be removed unless the anatomy calls for it.
Our gum treatment page explains the wider periodontal care we provide.
Veneers or bonding for short or worn teeth
If the front teeth are genuinely short, worn or undersized, removing gum may not be the best answer. Building up the teeth can improve their proportions instead.
Composite bonding may suit some cases. Veneers are another option where appropriate, but they involve a different level of tooth preparation. Our guide to veneers and bonding explains the difference.
Sometimes a small gum adjustment is combined with restorative treatment, but only when both parts are needed.
Braces or aligners
If the front teeth have erupted too far down, are tilted or sit in a position that increases gum display, orthodontic movement may help. Braces or aligners can move teeth and their supporting tissues gradually.
This can be useful when tooth position and bite are part of the problem. You can read more about braces for adults if orthodontic treatment is being considered.
Lip repositioning surgery
For a hypermobile upper lip, lip repositioning surgery may be an option in selected patients. It changes the way the inner upper lip attaches so that it does not rise as far during a full smile.
It is not suitable for every lip-related gummy smile, and the amount of change can vary.
Botulinum toxin as a temporary option
Botulinum toxin can reduce the pull of the muscles that lift the upper lip. You may also hear this called botox for gummy smile.
The effect is temporary and wears off over months, so repeat treatment is needed to maintain it. Dose and placement matter because excessive muscle weakening can affect smile movement or symmetry.
Jaw surgery for severe skeletal causes
If the main cause is a vertically long upper jaw, gum trimming or injections cannot correct the underlying jaw position. In severe cases, orthognathic jaw surgery may be considered after specialist orthodontic and maxillofacial assessment.
This is a much larger treatment than gum contouring and is reserved for significant skeletal cases.
What is recovery like after gum surgery?
After gum contouring or crown lengthening, mild soreness and tenderness for a few days are common. You may be advised to eat softer foods briefly, brush carefully around the area and use any prescribed mouth rinse as directed.
The gums can look slightly uneven or swollen at first. They usually settle over the following weeks, so the final appearance should be judged after healing rather than immediately after treatment.
Crown lengthening can take longer to stabilise because the tissues need time to heal around the new gum and bone position. If veneers, crowns or bonding are planned afterwards, we may wait before finalising them.
How do you know what will actually improve your smile?
The key question is not how much gum can be removed. It is why the gum is showing.
No single treatment suits everyone. Gum contouring helps when gum coverage is the issue. Restorative treatment helps when teeth are short. Orthodontics helps when tooth position contributes. Lip treatment addresses excessive lip movement. Jaw surgery is reserved for significant skeletal causes.
Sometimes two methods are combined, but each should have a clear reason. A cosmetic dentistry assessment can help if tooth shape, colour, alignment and gum level all need to be considered together.
If you are considering several cosmetic changes, our smile makeover guide explains the factors that affect planning and cost.
Before deciding, ask what is causing your gum display, what each treatment is expected to change, what recovery is involved, and whether the effect is temporary or long-term.
If too much gum when smiling bothers you, we can measure the teeth, gums, lip movement and bone level before discussing realistic options. You can book a smile assessment at Haihyvanshi Dental Clinic & Implant Centre on IIM Road.
Frequently Asked Questions
Does a gummy smile always need treatment?
A gummy smile does not need treatment if your teeth and gums are healthy and you are comfortable with how you look. Showing a few millimetres of gum can be completely normal. Treatment is mainly an aesthetic choice, unless there is another issue such as gum overgrowth, tooth wear or a condition that needs dental care.
How do I know if gum contouring is enough for me?
Gum contouring is most useful when healthy tooth structure is hidden by excess gum. We need to measure the teeth and check the bone level first. If the bone sits too close to the gum edge, crown lengthening may be more suitable. If lip movement, tooth position or jaw shape is the main cause, another treatment may be needed.
How long does botulinum toxin for a gummy smile last?
Botulinum toxin is temporary. The effect gradually reduces as muscle activity returns, usually over a period of months. The exact duration varies between people. Repeat injections are needed if you want to maintain the effect, and careful dosing matters because excessive weakening can change lip movement or create smile asymmetry.
Will my gums look normal straight after crown lengthening?
Not usually straight away. Mild swelling, tenderness and an uneven-looking gum edge can occur during early healing. The gums generally settle over the following weeks, and the final appearance is judged after the tissues have stabilised. If veneers, crowns or bonding are planned, the dentist may wait for healing before completing the final restoration.