Gummy Smile Correction

Introduction

If you feel that your smile shows too much of your gums and too little of your teeth, you are not alone. The pattern is common enough to have its own name in dentistry — excessive gingival display, more commonly called a gummy smile. It is not a disease, and it does not damage the teeth or the gums. But for many people, it affects how comfortable they feel smiling, talking, or appearing in photographs.

Gummy smile correction is the group of cosmetic and surgical techniques used to reduce how much gum shows when you smile. Some techniques reshape the gums. Some lengthen the visible part of the tooth. Some relax the upper lip. A small number address the jawbone itself. Which technique fits a particular smile depends on why the gum is showing in the first place — and that is the part of the consultation that matters most.

This guide is written for adults who are considering gummy smile correction or who have already decided to go ahead and want to understand what is involved. It explains the underlying causes, the main treatment options, what to expect during the procedure and afterwards, the risks to be aware of, and the questions worth raising with your dentist.

What Is a Gummy Smile?

A smile is generally described as “gummy” when more than about three to four millimetres of gum tissue is visible above the upper teeth during a full smile. This is a guideline, not a strict rule. What feels acceptable to one person may feel excessive to another. Cosmetic dentistry studies on smile attractiveness suggest that most observers begin to perceive a smile as gummy when gum show exceeds roughly three millimetres, but cultural preferences and individual perception vary widely.

The key point is that a gummy smile is a cosmetic concern, not a medical one. Healthy gum tissue is healthy regardless of how much of it shows. Treatment is appropriate when the appearance bothers the person who has it — not because anything is medically wrong.

What Causes a Gummy Smile?

Several different factors can produce the same visible result, and a single person may have more than one of them. The main causes are:

• Altered passive eruption. As permanent teeth come in during childhood and adolescence, the gum line normally moves up to expose more of the tooth. When this process does not complete fully, the gums remain covering part of what would otherwise be visible tooth. The teeth then look short, even though the actual tooth structure underneath is normal.
• Short clinical crowns. The visible part of the tooth (the “clinical crown”) is shorter than average, either because of how the tooth formed or because of wear over time.
• Hyperactive upper lip. The muscles that lift the upper lip when you smile are stronger or more active than average, pulling the lip higher and exposing more gum.
• Short upper lip. The upper lip itself is shorter than average, so even normal muscle activity reveals more gum.
• Vertical maxillary excess. The upper jaw bone has grown longer than typical in the vertical direction. The teeth and gums sit lower in the face as a result. This is a skeletal cause, not a gum or lip cause.
• Combinations of the above. Many gummy smiles involve two or three of these factors at once.

Identifying which of these is the main contributor is the foundation of choosing the right treatment. A gum that shows because of a hyperactive lip will not respond well to gum surgery. A gum that shows because of altered passive eruption will not respond well to a lip injection. This is why the initial assessment matters more than the procedure itself.

Why Gummy Smile Correction Is Performed

The reasons to consider gummy smile correction are cosmetic, not medical. Adults seek treatment most commonly because:

• They feel self-conscious smiling in social or professional situations
• They avoid smiling fully in photographs
• They feel their teeth look shorter than they would like
• They are planning other cosmetic work (such as veneers or whitening) and want the gum line addressed first for a balanced result
• They feel their smile looks out of proportion with the rest of their face

Because a gummy smile is not harmful, there is no clinical urgency to treatment. It is reasonable to take time deciding whether to proceed, to consult more than one dentist, and to ask for photographs of similar cases the dentist has treated before.

Who Is a Candidate?

Most healthy adults with a gummy smile are candidates for some form of correction. The right candidate generally:

• Has completed facial growth (usually late teens at the earliest, often older for skeletal causes)
• Has healthy gums, with no active gum disease or infection
• Has reasonable overall oral health (no large untreated cavities or severe decay)
• Has realistic expectations about what the procedure can change
• Understands that the appropriate technique depends on the underlying cause

Gummy smile correction is generally not performed on children. The face, jaws, and gum line continue to change throughout adolescence, and early intervention may not match the final adult appearance. Where a child or teenager has a noticeable gummy smile, dentists usually monitor and wait until growth is complete.

People with active gum disease (gingivitis or periodontitis) are usually asked to treat the gum disease first. Cosmetic gum surgery on inflamed gums tends to give less predictable results and can worsen disease in some cases. Smokers may also be advised to stop smoking before and during the healing period, as smoking slows gum healing.

Alternatives to Consider

Before committing to a procedure, it is worth knowing what the alternatives are. Not every gummy smile needs surgical correction, and some people decide after consultation that the appearance does not bother them enough to treat.

Doing nothing

This is a legitimate choice. A gummy smile is not a health problem. Many people who consult about it ultimately decide they are more comfortable with their natural smile than with any cosmetic change, particularly after seeing simulated results.

Orthodontic treatment alone

In some cases, particularly where the front teeth have over-erupted (grown down further than the rest), orthodontic treatment with braces or aligners can move the teeth into a position that reduces gum show without any gum or lip surgery. Where the gummy smile is mild and orthodontic problems are also present, this combined approach may address both issues.

Cosmetic camouflage

Veneers or crowns that lengthen the appearance of short teeth can partly balance the tooth-to-gum ratio in some cases. This does not reduce gum show directly, but it can make the overall smile look more proportionate.

Lip cosmetics

Some people use lip fillers or lip makeup techniques to make the upper lip appear fuller and cover slightly more gum. These do not change the underlying anatomy but may soften the appearance.

None of these alternatives suit every cause. A dentist experienced in smile aesthetics can explain what is realistic for a particular smile and what is not.

Surgical and Procedural Approaches

There is no single procedure called “gummy smile correction.” The term covers several different techniques, each suited to different underlying causes. Some are minimally invasive and can be done in a single dental appointment. Others involve oral or maxillofacial surgery. Dentists generally aim for the least invasive option that addresses the underlying cause.

Gum Contouring (Gingivectomy)

Gingivectomy is the surgical reshaping of the gum line to expose more of the natural tooth. It is the most common approach when the cause is altered passive eruption or excess gum tissue covering otherwise normal teeth. Using either a scalpel or a dental laser, the dentist removes a thin layer of gum tissue along the upper front teeth and shapes the new gum line for a more balanced appearance.

Gingivectomy alone is appropriate when there is enough bone level below the new gum line to support healthy gum attachment. If the bone sits too close to the new gum line, a slightly more involved procedure called crown lengthening is needed.

Crown Lengthening

Crown lengthening combines gum reshaping with a small amount of bone reshaping underneath. It is used when simply removing gum tissue would leave the gum too close to the bone, which can lead to inflammation and gum recession later. By recontouring both the gum and the underlying bone by a small amount, the dentist creates a stable new gum line at the desired position. Healing takes a little longer than gingivectomy alone, but the result is generally more stable in the long term.

Laser Gum Reshaping

Laser-assisted gum reshaping is a variation of gingivectomy that uses a soft-tissue dental laser instead of a scalpel. The laser cuts and seals tissue at the same time, which tends to reduce bleeding during the procedure and may shorten healing time for some patients. The cosmetic result depends more on the planning and skill of the dentist than on the instrument used.

Botulinum Toxin Injection

For gummy smiles caused mainly by a hyperactive upper lip, small injections of botulinum toxin (commonly known by brand names such as Botox or Dysport) into specific muscles around the upper lip can reduce how high the lip lifts during a smile. The effect is temporary — usually three to six months — after which the muscles regain their normal activity and the gummy smile returns. Patients who like the result generally repeat the injections two or three times a year.

Because the effect is reversible, botulinum toxin is sometimes used as a trial before committing to a permanent surgical option such as lip repositioning. It can also be combined with gum contouring when more than one factor contributes to the gummy smile.

Lip Repositioning Surgery

Lip repositioning is a minor surgical procedure that limits how high the upper lip can lift during a smile. A small strip of tissue is removed from the inside of the upper lip, and the lip is sutured into a slightly lower position. The outside appearance of the lip does not change at rest, but the lift during a smile is reduced.

It is generally considered for patients with hyperactive lips who do not want repeated botulinum toxin injections, or for whom injections have given a good preview of the desired result. Healing takes about two weeks. The effect is longer-lasting than botulinum toxin but is not always permanent — some relapse over time has been described in the literature.

Orthognathic (Jaw) Surgery

When the cause of the gummy smile is vertical maxillary excess — an upper jaw that has grown longer than usual — the only treatment that addresses the underlying anatomy is jaw surgery. A maxillofacial surgeon repositions the upper jaw upward in a procedure called a Le Fort I osteotomy. This is a major operation, performed under general anaesthesia in hospital, with a recovery period of several weeks.

Jaw surgery is reserved for severe skeletal cases, often where there are also bite or jaw function concerns. It is not a first-line option for purely cosmetic gum show. Where it is considered, the planning usually involves both an orthodontist and an oral and maxillofacial surgeon, and treatment may include orthodontics before and after surgery.

Orthodontic Intrusion

For some gummy smiles caused by over-erupted upper front teeth, orthodontic treatment can move the teeth upward into the bone (intrusion), which reduces the amount of gum and tooth showing below the lip. This is most relevant when orthodontic correction is being considered for other reasons as well.

Preparing for Gummy Smile Correction

The preparation depends on which technique is planned, but several steps are common to most cases.

Consultation and Assessment

The first appointment is the most important. A thorough assessment generally includes:

• A discussion of what you would like to change about your smile
• A clinical examination of your gums, teeth, and bite
• Measurement of gum show at rest, during a relaxed smile, and during a full smile
• Examination of upper lip length and movement
• Photographs of your smile from several angles
• Sometimes, dental X-rays or a digital smile simulation

The aim is to identify which factor or factors are responsible for the gum show. A good consultation also includes an honest conversation about what is realistic. If the cause is partly skeletal, no amount of gum contouring will fully fix it, and the dentist should say so.

Dental Cleaning and Gum Health

Before any cosmetic gum procedure, the gums should be healthy. This usually means a professional cleaning beforehand and treatment of any active gum inflammation. Healthy gums heal more predictably and give a better cosmetic result.

Lifestyle Preparation

Patients are generally asked to avoid smoking before and during the healing period, as smoking slows wound healing and increases the risk of complications. If you take blood-thinning medications, the dentist may consult your physician about whether and how to manage them around the procedure.

What Happens During the Procedure

The experience differs by technique. The descriptions below are general — your own dentist will explain the specific steps for your treatment plan.

Gum Contouring or Laser Reshaping

Performed under local anaesthesia in the dental chair. The dentist marks the planned new gum line, then removes the thin layer of gum tissue using either a scalpel or a dental laser. The procedure usually takes 30 to 60 minutes. There is generally little or no bleeding with a laser, and modest bleeding with a scalpel that is easily controlled. You can usually see the new gum shape immediately.

Crown Lengthening

Similar to gum contouring but with an additional step. After the gum is reshaped, the dentist gently lifts the gum away from the bone, removes a small amount of bone to create the right distance from the new gum line, and then sutures the gum back into position. This takes 60 to 90 minutes for the front teeth. Stitches are usually removed after one to two weeks.

Botulinum Toxin Injection

A very quick procedure, usually under 10 minutes. The dentist or trained injector identifies specific points around the upper lip and injects small doses of botulinum toxin into the lip-lifting muscles. There is no anaesthesia other than possibly a topical numbing cream. You can return to normal activities immediately, with a few minor restrictions in the first 24 hours.

Lip Repositioning

Performed under local anaesthesia. A strip of tissue on the inside of the upper lip is removed and the lip is sutured into a slightly lower-lifting position. The procedure takes about an hour. The stitches dissolve or are removed after one to two weeks.

Jaw Surgery

Le Fort I osteotomy is performed in an operating room under general anaesthesia by an oral and maxillofacial surgeon. The upper jaw is separated from the rest of the face along a planned cut, repositioned upward, and fixed with small titanium plates and screws. The procedure typically takes two to three hours. A short hospital stay is usual.

Recovery and Healing

Recovery varies significantly by technique. The general guidance below describes typical patterns; your own recovery may be faster or slower.

After Gum Contouring or Crown Lengthening

Most patients experience mild soreness or tenderness for a few days, generally well controlled with simple pain relief such as paracetamol or ibuprofen. Some swelling of the gums is normal. Eating soft foods for the first 24 to 48 hours and avoiding very hot, spicy, or hard foods reduces discomfort.

After Botulinum Toxin Injection

There is essentially no downtime. Patients are usually advised to avoid rubbing the injection sites, lying flat, or exercising vigorously for the rest of the day. The effect on the smile is not immediate — it usually becomes visible over three to seven days and reaches its peak around two weeks.

After Lip Repositioning

Mild swelling and bruising of the upper lip is common in the first few days. Patients are typically advised to avoid wide smiling, laughing, or lip stretching for two to three weeks to allow the surgical site to heal in the new position. Soft foods are recommended for the first week. Stitches dissolve or are removed at one to two weeks.

After Jaw Surgery

Recovery from Le Fort I surgery is more involved. Significant swelling lasts one to two weeks. A soft or liquid diet is needed for several weeks. Most people return to office work in three to four weeks but may not feel fully recovered for two to three months. Bone healing continues for several more months.

Risks and Complications

Gummy smile correction is generally safe when performed by experienced dentists or surgeons, but every procedure has risks. Understanding them is part of an informed decision.

Risks of Gum Procedures

• Gum sensitivity in the days after treatment, particularly to hot, cold, or sweet foods.
• Swelling and mild bleeding, usually settling within a few days.
• Infection, uncommon but possible. Antiseptic mouth rinses and good oral hygiene reduce the risk.
• Gum recession or regrowth. If gum was removed without enough attention to the underlying bone, the gum may grow back to its previous position or recede further than intended.
• Asymmetry or over/under-correction. Either too much or too little tissue removed can leave a result that does not look balanced. Careful planning reduces this risk.
• Tooth sensitivity if the newly exposed tooth surface includes part of the root.

Risks of Botulinum Toxin

• Asymmetric smile if the dose or position is uneven — this generally settles as the effect wears off.
• Difficulty making certain expressions, such as whistling or pursing the lips, until the effect wears off.
• Bruising at injection sites.
• Allergic reactions, rare.

Risks of Lip Repositioning

• Swelling, bruising, and discomfort in the first week.
• Relapse over months to years, with some return of the original lip lift.
• Scar tissue inside the lip, usually not visible but occasionally palpable.
• Numbness of part of the lip, usually temporary.

Risks of Jaw Surgery

Le Fort I osteotomy is a major operation. Risks include bleeding, infection, nerve injury affecting sensation in the upper teeth and lip (often temporary but occasionally lasting), delayed bone healing, and the general risks of general anaesthesia. These are discussed in detail by the maxillofacial surgical team during consent.

Life After Gummy Smile Correction

The result of gummy smile correction depends on the technique, the underlying cause, and how well the gums and surrounding tissues heal. In general:

• Gum contouring and crown lengthening give results that are stable over many years if the gums stay healthy. Gum disease later in life can change the gum line and affect the result.
• Botulinum toxin provides results lasting three to six months. Repeated treatment is needed to maintain the effect.
• Lip repositioning typically gives results lasting several years, with some risk of partial relapse over time.
• Jaw surgery gives a permanent skeletal change.

Long-term maintenance is simple but important: regular dental check-ups, professional cleanings, and consistent home oral hygiene help preserve gum health and the cosmetic result. If you have had crown lengthening or gingivectomy, your dentist will monitor the gum line at follow-up visits.

Some patients combine gummy smile correction with other cosmetic dental work — tooth whitening, veneers, or orthodontics — to refine the overall smile. The sequence matters: gum work is usually completed first, then the teeth are addressed, so that veneers or whitening are designed around the final gum line.

Frequently Asked Questions

Is gummy smile correction painful?

Most gum and lip procedures are done under local anaesthesia, so you should not feel pain during treatment. Afterwards, mild soreness for a few days is typical and is usually well managed with simple over-the-counter pain relief. Botulinum toxin injections involve a brief sting at the needle. Jaw surgery is a major operation and has a longer, more uncomfortable recovery.

How long do the results last?

Gum contouring and crown lengthening results are usually stable for many years as long as the gums stay healthy. Botulinum toxin results last three to six months. Lip repositioning results last several years, sometimes with some relapse. Jaw surgery is permanent.

Will my smile look natural?

Done well, gummy smile correction should make the smile look balanced rather than “done.” A natural-looking result depends on careful planning of the new gum line, attention to symmetry, and a realistic target rather than overcorrection. Asking your dentist for before-and-after photographs of similar cases they have treated can help you assess their aesthetic style.

Can I combine gummy smile correction with veneers or whitening?

Yes, and many patients do. Where multiple cosmetic procedures are planned, the gum line is generally addressed first so that veneers, crowns, or whitening can be designed around the final gum position.

Is gummy smile correction suitable for teenagers?

Most dentists prefer to wait until facial growth is complete before considering cosmetic correction. This is usually late teens at the earliest, often older. Treating before growth ends carries a risk that the result will not match the final adult appearance.

What happens if I have gum disease?

Active gum disease is generally treated first. Cosmetic gum surgery on inflamed tissue is less predictable and may worsen disease. Once the gums are healthy and stable, cosmetic correction can be considered.

How do I know which technique is right for me?

The right technique depends on the underlying cause of the gum show. A thorough assessment — including measurement of gum show, examination of the upper lip, and assessment of the bite and jaw — allows the dentist to identify whether the main factor is gum tissue, lip activity, jaw position, or a combination. The same visible result can have very different best treatments depending on the cause.

Can a gummy smile come back after treatment?

It depends on the cause and the technique. Gum that has been surgically reshaped can regrow if the underlying bone was not addressed appropriately. Botulinum toxin wears off and the effect returns to baseline. Lip repositioning can partially relapse. Stable, long-lasting results come from matching the technique to the underlying cause.

Conclusion

A gummy smile is not a medical problem, but it can affect how comfortable a person feels with their own smile. Modern dentistry offers a range of options for changing how much gum shows — from simple gum reshaping in a single appointment, to injections that work for a few months at a time, to lip surgery, to major jaw surgery in the most skeletal cases.

The single most important step is identifying the cause. The same visible gum show can come from gum tissue, lip muscles, lip length, jaw position, or a combination of these. The right treatment is the one that addresses the actual cause — not just the appearance, and the right dentist is one who takes the time to explain that distinction before suggesting a procedure.

If you are considering gummy smile correction, take time over the consultation. Ask what is causing your particular gum show, what the realistic result of each option would look like, what the risks are, and how long the result is expected to last. A well-planned correction can be a small change in millimetres that makes a meaningful difference to how comfortable you feel smiling.