A gummy smile is defined as more than 3 mm of gum exposure when you smile. It affects an estimated 10.5% to 29% of the population, and for people who have it, the effect on confidence can be significant. Many patients instinctively cover their mouth when they smile in photos, avoid showing their smile in social settings, or feel self-conscious about their teeth despite having healthy dentition and a genuinely beautiful smile to offer. Fortunately, for the majority of gummy smiles caused by hyperactive upper lip muscles, botox for gummy smile offers a fast, low-risk, and clinically effective correction.
This guide covers what causes a gummy smile, how botox fixes it, the specifics of the injection technique, how long results last, and the honest answer to the question that comes up most often: can gummy smile botox go wrong?
What Is a Gummy Smile?
Excessive gingival display – commonly called a gummy smile – is clinically defined as more than 3 mm of gum tissue visible above the upper teeth when smiling. A smile shows gums for a variety of reasons: the gums themselves may be enlarged, the upper teeth may be shorter than average, the jaw structure may be positioned forward (vertical maxillary excess), or the muscles that elevate the upper lip may be overactive. Gummy smiles affect approximately 14% of females and 7% of males.
Excess gum show is primarily an aesthetic concern rather than a medical one. The confidence impact, however, can be real. Many patients with a gummy smile describe avoiding photographs, suppressing their smile in meetings, or feeling their teeth look abnormal when they are not. This is exactly the type of concern that cosmetic dentistry and aesthetic medicine have developed effective, low-burden solutions for – and botox for gummy smile is currently the fastest, most accessible of those options.
What Causes a Gummy Smile?
Understanding the cause of a gummy smile is essential before selecting a gummy smile treatment, because botox only works for one specific cause. The main types include overactive upper lip muscles (the most common type botox addresses), excess gum tissue from gingival overgrowth, short clinical crowns that make gums appear dominant relative to the teeth, and vertical maxillary excess – a skeletal issue where the upper jaw sits too far forward, causing excessive gum exposure when smiling.
Gummy smiles are often caused by hyperactive upper lip muscles – specifically the levator labii superioris alaeque nasi, which elevates the upper lip too high during smiling, revealing gum tissue above the upper teeth. When the upper lip muscles pull the lip upward beyond the typical range, more gum is exposed with every smile. Botox is not suitable for this condition when caused by gum overgrowth or skeletal issues. Those cases require gingivectomy, orthodontic treatment, orthognathic surgery, or surgical lip repositioning – each a valid gummy smile treatment for the appropriate cause. Accurate diagnosis through consultation is essential before any correction is attempted.
How Botox Fixes a Gummy Smile
Botox for gummy smile works by relaxing the overactive muscles responsible for excessive upward lip movement when smiling. When botulinum toxin type A is placed into the levator labii superioris alaeque nasi – the primary muscle lifting the lip – it temporarily reduces the strength of the upward elevation, allowing the upper lip to rest lower when you smile. Less gum tissue is exposed, the teeth are more prominently displayed, and the smile looks more balanced and natural.
Clinical studies report an average gummy smile reduction of roughly 2 to 3 mm with gummy smile botox, with some patients achieving reductions of up to 5 mm. The procedure has a high patient satisfaction rate for mild-to-moderate excessive gingival display. Botox injections can reduce gum exposure by 2 to 5 mm – a clinically meaningful change that transforms how patients feel about their smile. Fortunately, this level of improvement is achievable in a single appointment with no recovery required.
Correctly placed botox injections help maintain normal facial expressions and confident smile function while reducing the problematic upward movement of the upper lip. Patients can smile naturally, speak, and eat without restriction. This is a common concern patients raise before treatment – and fortunately, gummy smile botox does not produce a flattened smile when performed by a skilled injector with proper technique.
The Injection Technique: Yonsei Point and Muscle Targeting
The injection process for gummy smile botox typically takes 10 to 15 minutes with minimal discomfort. The primary anatomical target is the levator labii superioris alaeque nasi – the muscle responsible for most excessive gingival display. The key injection site is the Yonsei point, a landmark triangulated by three major lip-elevating muscles: the zygomaticus minor, the levator labii superioris, and the levator labii superioris alaeque nasi. Botox placed at or near the Yonsei point directly targets the muscles responsible for excessive upward lip elevation.
The botox treatment typically uses 2 to 4 units per side at the injection points, for a total of 4 to 8 units. Injection technique can be adjusted based on muscle volume, the degree of gum exposure, and individual anatomy. The botox treatment procedure uses botulinum toxin type A placed intramuscularly via fine needle injections at the targeted muscles. Most patients describe the experience as minimal discomfort – a brief pinch at the injection sites. These targeted injections are completed quickly, with precise injections placed in under a minute each. The total number of injections is small – typically 4 to 8 total across both sides. The procedure does not require extensive downtime; minimal downtime means daily activities can resume immediately after treatment.
This is where the expertise of the injector matters most. The muscles involved are small and closely positioned – precise placement of these botox injections is essential to avoid affecting nearby muscles that control smile width, facial symmetry, or normal lip movement. The Yonsei point approach is widely regarded as the most consistent anatomical target in aesthetic medicine for gummy smile treatment. The injection process itself is straightforward when performed by someone with specific experience in gummy smile correction using botox.
Gummy Smile Botox vs. Surgical Options
Botox is one of several gummy smile treatment options, but not the right choice for every cause. For skeletal causes of excessive gingival display, orthognathic surgery is the gold-standard permanent correction. Surgical lip repositioning can treat gummy smiles by physically repositioning the upper lip lower – a surgery with lasting results for appropriate candidates. Gingivectomy removes excess gum tissue to reveal more of the teeth, useful when gum overgrowth dominates. Laser treatments can remove excess gum tissue with less recovery than traditional surgery. Braces and orthodontic treatment can help realign the teeth and reduce the visual impact of gummy smiles when dental alignment contributes to the issue. Dentistry and cosmetic dentistry have long offered these surgical options for patients who are not candidates for botox.
For gummy smiles driven by overactive upper lip muscles, gummy smile botox offers advantages that surgical options do not: no incisions, no surgery, no significant recovery, and results that can be adjusted at each subsequent treatment. This flexibility makes it ideal for patients who are uncertain about permanent surgical lip repositioning or who want to trial correction before committing to surgery. The confidence gained from the botox result often helps patients decide whether a more permanent approach is warranted.
How Long Do Results Last?
Botox effects for a gummy smile typically last three to six months. Most patients require re-treatment every three to six months to maintain consistent gum exposure reduction. The results are temporary – botox requires repeat treatments as the muscles responsible for the gummy smile gradually regain their strength. Over time, some patients find that repeated botox treatment in this muscle area gradually reduces the intensity of the overactive muscle response, potentially extending the interval between sessions.
Initial changes are noticeable within 3 to 4 days of gummy smile botox, with full results visible within one to two weeks. The smile settles into its new, lower-gum position gradually over the first week. Patients who experience their smile transformation for the first time often describe a meaningful shift in confidence in social and professional settings where smiling matters. The gummy smile will return as the botox naturally fades – this is predictable and manageable with a consistent maintenance schedule.
Who Is an Ideal Candidate?
Ideal candidates for gummy smile botox are patients whose excessive gingival display is caused primarily by overactive upper lip muscles rather than structural or gum tissue causes. Good candidates show 3 to 8 mm of gum above the teeth when smiling due to the high upward movement of the upper lip, and their smile shows a clearly overactive lip elevation. Most patients presenting with a gummy smile of this type are genuinely well-suited for botox as their primary treatment.
Patients whose condition stems from gum overgrowth, short teeth, or vertical maxillary excess are not ideal botox candidates – they should be directed toward the appropriate gummy smile correction alternatives in dentistry or cosmetic surgery. A consultation to treat gummy smiles appropriately always begins with identifying the cause. Fortunately, overactive upper lip muscles represent the most common underlying driver, which is why botox has become the most widely used approach for this condition globally.
Botox for gummy smile is not recommended for patients who are pregnant or breastfeeding, those with neuromuscular disorders, or those with a known allergy to botulinum toxin. The procedure is minimally invasive, with minimal downtime and a strong safety record across the dental and aesthetic medicine communities that study and perform it.
Frequently Asked Questions
What is the riskiest place for Botox?
Among common cosmetic injection sites, the perioral region – where gummy smile botox is placed near the upper lip – requires particularly precise technique. The muscles responsible for the gummy smile sit adjacent to muscles controlling smile width and facial symmetry. Imprecise placement or excessive botox can lead to asymmetry, a flattened smile, or reduced upper-lip movement affecting speech. These risks are real but uncommon when performed by an experienced provider. The procedure has a high patient satisfaction rate and a low morbidity rate when injected properly. Confidence in choosing the right provider is your most important protective factor.
How much does Botox for a gummy smile cost?
Gummy smile botox uses only 4 to 8 total units – among the smallest amounts used in any cosmetic botox procedure. At $10 to $20 per unit, the cost of gummy smile botox is typically $50 to $200 per session. This makes it one of the most cost-accessible botox treatments available. Because re-treatment every three to six months maintains the smile correction, annual cost ranges from roughly $100 to $800 depending on dosing and provider fees. A consultation provides an accurate estimate based on your specific gummy smile anatomy.
How long does Botox for gummy smile last?
Results from gummy smile botox typically last three to six months. The smile returns to its pre-treatment state as the upper lip muscles regain normal strength and upward movement. Most patients return every three to six months for treatment to maintain their results. Many patients with mild gummy smile find that over multiple treatment cycles, the muscles responsible for excessive gum show become somewhat less reactive, potentially extending the interval between sessions. Full results are visible within one to two weeks of botox injections.
Can gummy smile Botox go wrong?
Yes, and it is important to address this honestly. The most common complications from gummy smile correction with botox include smile asymmetry, a flattened or unnatural smile appearance, reduced upper-lip movement, or insufficient gum reduction if underdosed. Most side effects are temporary and resolve as the botox naturally fades. The risk is meaningfully reduced by choosing a provider with specific experience in this procedure who understands the anatomy of the levator labii muscle group and surrounding injection points. Dentistry-trained providers and aesthetic medicine practitioners who specialize in this area are well-positioned to deliver safe, accurate results.
Book Your Gummy Smile Consultation
If a gummy smile has made you self-conscious about showing your teeth or sharing your smile, a consultation at Yanasthetics in Aventura, FL is a meaningful first step. Yana Bromberg PA-C provides honest, thorough assessment of whether botox is the right gummy smile treatment for your cause – and what to expect from your results. A confident smile is achievable. Let’s talk about how to get there. Explore botox at Yanasthetics to learn more.
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Yana Bromberg is a board-certified Physician Assistant and the founder of Yanasthetics, a boutique injectables clinic in Aventura, FL. With over eight years of experience in medical aesthetics, Yana is known for her conservative approach, deep knowledge of facial anatomy, and commitment to natural-looking results. She trained in New York City and has studied alongside some of the top injectors in the field. Yana writes to help patients make informed, confident decisions about their aesthetic care.