Understanding the Gummy Smile
A gummy smile, clinically called excessive gingival display, is when 3 mm or more of gum tissue shows above the upper teeth when a person smiles fully. This is a common aesthetic concern, not a sign of poor oral health, affecting an estimated 10% to 30% of the population.
What Causes a Gummy Smile?
The causes of a gummy smile are not the same for everyone, which is why a proper diagnosis is the first step toward correction. The four main categories include:
Excess gum tissue or altered passive eruption. The gums fail to recede fully after the teeth come in, leaving more gum tissue covering the tooth surface. This accounts for roughly 15-25% of cases.
Hyperactive upper lip muscles. The elevator muscles (especially the levator labii superioris) pull the upper lip higher than normal when smiling. This muscle-driven cause makes up 15-20% of cases.
Vertical maxillary excess. The upper jawbone grew longer than average in the vertical direction, causing the entire smile to expose more gum. This is the most common cause, found in 40-50% of cases.
Short teeth or incomplete eruption. Teeth that are naturally short or didn't fully erupt can make the gums appear more prominent. This contributes to 10-15% of cases.
Many people have more than one cause at the same time. For example, someone might have a hyperactive lip combined with a small amount of vertical maxillary excess. A comprehensive dental evaluation is needed to pinpoint the exact factors and recommend the right treatment.
What Causes a Gummy Smile?
Excess gum tissue covering teeth. In some cases, the gum tissue that sits above the teeth is simply thicker or bulkier than average, or it may not have receded properly after the permanent teeth came in. This alters the proportion between the tooth and the gum, making the smile appear overly gingival. Gum contouring, also called a gingivectomy, directly addresses this by reshaping the gumline to expose more of the natural tooth crown.
Hyperactive upper lip muscles. The muscles that lift the upper lip, especially the levator labii superioris, may contract too strongly or with too much range of motion, pulling the lip higher than normal when smiling. This reveals more gum than the tooth-to-gum ratio itself would suggest. A non-surgical fix like Botox can temporarily relax these muscles, reducing the elevation of the lip and the amount of gum that shows.
Vertical maxillary excess. When the upper jaw (maxilla) grows more vertically than it should, it positions the tooth roots and gums lower relative to the lip, producing an excessive gingival display. This is a skeletal cause that often requires a more substantial intervention. Orthognathic surgery can reposition the entire upper jaw, while orthodontic treatment can sometimes adjust tooth position to reduce the appearance of excessive gum.
Altered passive eruption and short teeth. Sometimes the permanent teeth simply stopped erupting at a lower level than expected, leaving an unusually large band of gum covering them. Alternatively, the teeth themselves may be naturally short or have been worn down, making the gums look proportionally larger. Crown lengthening reshapes the gum tissue and, if needed, a small amount of underlying bone to expose more of the tooth structure and create a balanced smile.
Many people have a combination of these factors, so a thorough clinical examination is needed to identify the root cause before choosing a treatment. At Empower Your Smile, Dr. Moezinia and her team use advanced diagnostic tools to pinpoint exactly which factors are contributing to your gummy smile and can recommend a tailored plan that may include gum contouring (also known as a gingivectomy), crown lengthening, or a custom combination of procedures. Determining the underlying cause first ensures you invest in the right treatment from the start.
Non-Surgical Fixes: Botox and Lip Relaxation
For a gummy smile caused by a hyperactive upper lip, a non-surgical approach can reduce gum display without cutting or drilling. The most common of these treatments is Botox (botulinum toxin), which is injected in small doses to temporarily relax the elevator muscles that lift the lip too high. This quick procedure is an ideal first step for patients with lip hypermobility who want to see if a less invasive solution meets their goals.
During a typical Botox session, the provider injects 2 to 6 total units into one or two small points on each side of the nose, targeting the levator labii superioris and levator anguli oris muscles. Because muscle strength and smile anatomy vary from person to person, a skilled injector determines the precise dosage during a consultation. Starting with a low dose, such as 2–4 units per side, helps avoid over-relaxation — too much can create a flattened or awkward smile. At Empower Your Smile, Dr. Moezinia personalizes each treatment to reduce excessive gum display without compromising your smile's function or expression.
Patients usually see the first effects within 3 to 7 days, with full results appearing around the two-week mark. The relaxation typically lasts 3 to 6 months, after which the muscle activity returns to normal. There is virtually no downtime — most people resume their day immediately after the 10-minute injection session. A Colgate article notes that repeat treatments every 6 to 12 months are needed to maintain the correction, making Botox a reversible and cost-effective choice for many patients.
Permanent Surgical Options
When excess gum tissue is the root cause, surgical procedures offer permanent solutions. The two most common approaches are gingivectomy (gum contouring) and crown lengthening, both performed by a periodontist.
Gingivectomy and Crown Lengthening
A gingivectomy is a surgical procedure that removes overgrown gum tissue using a scalpel or laser, reshaping the gum line to expose more of the natural tooth crown. This direct approach produces immediate, permanent results for gummy smiles caused by excess tissue covering healthy enamel.
Crown lengthening is a more extensive procedure that reshapes both gum tissue and a small amount of underlying bone to expose additional tooth structure. This is the appropriate fix when teeth appear short or boxy due to altered passive eruption. The Cleveland Clinic notes that removing a small amount of bone helps reduce the risk of gum regrowth, ensuring stable long-term results.
Recovery and Long-Lasting Results
Both procedures are performed under local anesthesia. Patients typically experience mild soreness for 1-2 days and can return to work or school after that period, though full healing of the gum tissue takes about one week. Crown lengthening can provide a 70-90% permanent reduction in gum display, with final results stabilizing in 6-8 weeks.
For patients seeking a complete smile transformation, Dr. Moezinia at empoweryoursmile.com often combines gum contouring with porcelain veneers or dental bonding to maximize aesthetic harmony. This paired approach ensures that newly exposed tooth surfaces are proportioned and shaped for an ideal, confident smile.
Lip Repositioning Surgery
When excessive gum display stems from a hyperactive or highly positioned upper lip rather than from the gum tissue itself, a surgical approach called lip repositioning offers a targeted, durable fix. This procedure is also sometimes referred to as a "gummy tuck." It is performed by a periodontist, a dental specialist trained in gum and soft tissue surgery.
During the procedure, which typically takes 30 to 45 minutes under local anesthesia, the periodontist removes a small strip of tissue from the inside of the upper lip. The remaining lip tissues are then sutured into a new, lower position, effectively limiting how high the lip lifts when you smile. This reduces the amount of gum tissue exposed without altering the outward appearance of the face or leaving visible scars.
Recovery is generally fast. Most patients experience only mild swelling and tightness for a few days and can return to normal activities quickly. The results are immediate after healing and are considered permanent, as the physical restraint on the lip muscle is maintained long-term. For a gummy smile caused by lip position, this can be a reliable alternative to repeat Botox injections. At Empower Your Smile in Tribeca, a consultation can determine if this procedure aligns with your smile goals.
Laser Gum Contouring
For a gummy smile caused by excess gum tissue covering the teeth, laser gum contouring offers a precise and minimally invasive permanent solution. This procedure, also known as laser gum lifting or laser gingivectomy, uses a focused dental laser to reshape the gumline with high accuracy, removing only the tissue needed to expose more of the natural tooth crown.
One of the main advantages of the laser approach is the reduced bleeding and faster healing time compared to traditional scalpel surgery, as the laser seals blood vessels and nerve endings as it cuts. Most patients experience only mild tenderness that resolves within 24 hours, and they can typically return to normal activities immediately. The procedure itself can often be completed in under 10 minutes for mild to moderate cases.
Laser gum contouring is considered a long-lasting or permanent treatment option, though its suitability depends on the specific cause of the gummy smile. For those with excess gum tissue or an uneven gumline, it can provide immediate cosmetic improvement with final healing taking 1-2 weeks. At Empower Your Smile, Dr. Moezinia and her team can help determine if this precision treatment is the right path to achieving a more balanced and proportionate smile.
Combining Veneers with Gum Treatments
Porcelain veneers alone do not change the gum line, but they can improve the appearance of a gummy smile by making teeth appear longer and more proportional. When teeth look short relative to the gums, custom-designed veneers can extend the visible tooth length, reducing the amount of gum tissue exposed when you smile.
Veneers as a Complement to Gum Contouring
Veneers work best as a second step after addressing the underlying gum issue. For example, a patient might first undergo laser gum contouring to reshape the gumline and expose more of the natural tooth crown, then have porcelain veneers placed to refine the final shape and shade of the teeth. At Empower Your Smile in Tribeca, Dr. Moezinia and her team coordinate gum treatments with restorative work like veneers to create a seamless, harmonious result.
Attempting to skip the gum correction step and using veneers alone to mask a gummy smile can leave the underlying problem unaddressed, resulting in an unnatural look. A consultation that includes digital smile design can show what the combined results will look like before any treatment begins.
Cost and Insurance Considerations
The cost of fixing a gummy smile varies widely based on the type of treatment and its complexity. Minimally invasive options are the most affordable, while permanent surgical solutions require a larger upfront investment.
Botox injections typically cost between $300 and $600 per session and require repeat treatments every few months, adding up to $1,200 to $2,400 per year for maintenance. Laser gum contouring, a permanent option for mild to moderate cases, generally ranges from $500 to $3,000. More extensive crown lengthening, which may include reshaping underlying bone, typically costs between $1,000 and $4,000. Lip repositioning surgery, a durable fix for a hyperactive lip, ranges from $2,000 to $5,000. For severe skeletal cases requiring orthognathic jaw surgery, costs can reach $20,000 to $50,000, though medical insurance may cover a portion if the procedure is deemed medically necessary.
Most gummy smile treatments are classified as cosmetic, so dental insurance rarely covers them. Some policies provide partial reimbursement for crown lengthening if it is linked to a functional bite issue or periodontal health, but patients should verify coverage before proceeding. At Empower Your Smile in Tribeca, NYC, Dr. Moezinia and her team offer personalized consultations to assess the cause of a gummy smile and provide a clear cost estimate. Combining gum contouring with porcelain veneers or bonding can maximize the final aesthetic result.
Is Correction Right for You?
Deciding to correct a gummy smile is a personal choice that often goes beyond simple aesthetics. Many patients report improved self-confidence, a greater willingness to smile in social and professional settings, and an overall boost in self-esteem after treatment. The psychological benefits of achieving a balanced, harmonious smile can be as meaningful as the physical change.
Good candidates for gummy smile correction share several traits. They are motivated by genuine cosmetic concerns and have realistic expectations about the outcome. Excellent oral hygiene and overall dental health are essential, as any underlying conditions like gum disease or untreated cavities must be addressed first. Patients with very thin gum tissue may not be suitable candidates for certain surgical procedures.
A consultation with a cosmetic dentist is the only reliable way to determine the right path for your smile. During a comprehensive exam, the dentist will assess your gum-to-tooth ratio, lip dynamics, and bone structure, then discuss which treatments align with your goals. At Empower Your Smile in Tribeca, Dr. Moezinia and her team use advanced diagnostics to tailor a personalized plan. Whether you are exploring temporary options like Botox or permanent solutions like laser gum contouring, a professional evaluation ensures that your investment delivers the confident, balanced smile you deserve.
Achieve Your Confident Smile
A gummy smile has several effective solutions, ranging from non-surgical Botox injections that relax an overactive upper lip to permanent surgical options like crown lengthening and laser gum contouring. The right choice depends entirely on what is causing the excess gum display.
A consultation with a dental professional is the essential first step. A dentist can perform a thorough exam to identify the cause, assess your oral health, and recommend a personalized treatment plan. At empoweryoursmile.com, Dr. Moezinia and her team use advanced technology to design a plan that fits your goals.
Taking that first step can lead to a balanced, confident smile. Whether you choose a temporary fix or a permanent one, correcting a gummy smile is a personal investment in your appearance and self-esteem.
