Written by: Dr. Akash Chandawarkar, Board Certified Plastic Surgeon, Mirror Plastic Surgery | Last updated: September 9, 2026
Key Takeaways
Botox for gummy smile is a non-surgical treatment that relaxes hyperactive upper lip muscles to reduce excessive gum display. Results usually appear in 3–5 days and follow the typical 3–4 month duration discussed throughout this guide.1
The treatment works only for muscular causes of gummy smile. Skeletal, gum tissue, or dental causes require different procedures and need proper diagnosis first.
Precise dosing of just 2–6 units per side at the Yonsei point or LLSAN muscles is critical. Provider expertise determines whether results look natural or over-treated.
Good candidates show 3 mm or more of gum display due to muscle activity, have healthy gums and normal tooth proportions, and benefit from a thorough consultation before treatment.
At Mirror Plastic Surgery, board-certified plastic surgeon Dr. Akash Chandawarkar personally performs every gummy smile Botox treatment with conservative dosing and a two-week follow-up to ensure balanced, natural results.
What Is A Gummy Smile And What Causes It?
A gummy smile usually means showing more than 3 mm of gum tissue above the upper teeth during a full smile. The aesthetic norm is about 1–2 mm. Excessive gingival display affects up to 14% of adults and appears slightly more often in women. It is seen in roughly 10% of people in their twenties and thirties.
The cause of a gummy smile determines whether Botox will help. Accurate diagnosis requires a trained eye. The four primary causes are:
- Hyperactive upper lip muscles, the most common cause. The levator labii superioris alaeque nasi (LLSAN) and related elevator muscles pull the lip too high when smiling.
- Excess gum tissue from altered passive eruption, where gums never fully receded from the tooth crowns.
- Short upper lip with insufficient lip length to cover the gum line at full smile.
- Jaw structure issues such as vertical maxillary excess, where the upper jaw is skeletally long.
Botox treats the muscular cause. Gum-related causes often need gum contouring or crown lengthening. Skeletal causes usually require orthognathic surgery, and Botox has limited effect in those situations.
How Botox For Gummy Smile Works
Botox for gummy smile is a non-surgical treatment that relaxes the muscles pulling the upper lip too high, which reduces the amount of gum shown when smiling. Results appear within days and follow the typical 3–4 month duration described earlier.
Botox (botulinum toxin type A) is injected in tiny doses into the hyperactive lip elevator muscles. These are primarily the LLSAN beside the nose and sometimes the levator labii superioris and zygomaticus minor. Relaxing the LLSAN limits the upper lip’s upward travel so less gum shows at full smile.
The Yonsei point is a key single-injection target. This triangular convergence area, where the LLSAN, levator labii superioris, and zygomaticus minor meet, has been validated through cadaveric dissection of 50 hemi-faces. Injecting at this landmark allows a small dose per side to soften all three lip elevators at once.
Key procedural facts:
- Typical dosage: 2–6 units per side, one of the smallest neurotoxin treatments in aesthetic medicine.
- Procedure time: 10–15 minutes.
- No downtime, with return to normal activities immediately.
- Most patients notice softening within 3–5 days, with full effect around two weeks.1
For a broader overview of how neuromodulators work across different facial areas, see our guide to Best Botox Treatment Areas And Options Explained.
Who Is A Good Candidate For Gummy Smile Botox?
Botox is ideal for patients whose gummy smile is muscular and caused by excessive lip elevation. Good candidates typically show 3 mm or more of gum above the front teeth, with healthy gum tissue and normal tooth proportions.
Botox is ineffective for gummy smiles caused by:
- Bone structure issues such as vertical maxillary excess.
- Excess gum tissue from altered passive eruption.
- Dental issues such as short or worn teeth.
For gummy smiles with gum exposure beyond 6 mm, Botox often has a weaker effect. These cases may need a combined approach for full correction.
A thorough in-person consultation is essential to assess the cause. A surgeon’s anatomical expertise helps prevent misdiagnosis and disappointing results. Botox can also act as a reversible trial run, letting patients preview a lower lip line before committing to permanent surgical options.
The Procedure Experience At Mirror Plastic Surgery
Consultations at Mirror Plastic Surgery can extend up to an hour and focus on a detailed evaluation of your smile dynamics. Your provider studies how your lip moves during a relaxed smile, a full smile, and speech. Small differences in muscle recruitment can change the treatment plan, so watching the upper lip across multiple expressions before injecting is essential.
The injection process at Mirror Plastic Surgery includes:
- Topical numbing cream for comfort.
- Two to four tiny injections placed precisely beside the nose or at the Yonsei point.
- Total treatment time of about 10–15 minutes.
- Minimal discomfort, often described as a quick pinch.
- Immediate return to normal activities.
Dr. Chandawarkar personally performs every injection, so you benefit from a surgeon’s command of facial anatomy. His surgical background supports precise, anatomy-driven injections that prioritize safety and natural movement.
Results Timeline And Duration: What To Expect
The results journey for gummy smile Botox follows a predictable arc:
- Onset: 3–5 days, when initial softening of lip elevation becomes noticeable.
- Peak effect: about two weeks, the right time to assess symmetry.
- Duration: the typical 3–4 month window, with effects gradually fading as the muscle regains activity.
Realistic Results
Beyond the timeline, patients often want to know how their smile will look. Improvement is intentionally subtle, and the goal is a balanced, natural smile. Most patients see a reduction of 2–4 mm of gum display, with success rates of 85–90% in suitable candidates when qualified practitioners perform the treatment.1
Complete elimination of gummy smile is not always appropriate. A natural, expressive smile remains the objective.
Results last slightly less time than Botox in areas like the forehead because the muscles around the mouth move constantly.1
Botox for gummy smile functions as a maintenance treatment. To sustain results, most patients plan for three to four treatments per year. Some people notice slightly longer duration after repeated treatments, likely because treatment history influences muscle response.
How Much Does Botox For A Gummy Smile Cost?
Every patient’s anatomy is different, so the appropriate number of units varies. Muscle strength, the degree of gingival display, smile symmetry, and any need for combination treatment all affect dosing. Mirror Plastic Surgery provides personalized quotes after a thorough consultation rather than publishing flat fees.
When evaluating providers, patients should ask whether pricing is per unit or a flat session fee and whether a two-week follow-up assessment is included. A helpful question at consultation is, “Is this price based on the actual number of units I need, or is it a flat gummy smile fee?”
Choosing a qualified injector matters more than finding the lowest price. A board-certified plastic surgeon’s expertise reduces the risk of complications and supports natural results. Cosmetic Botox is not covered by insurance. Beyond cost, understanding potential side effects helps you make an informed decision.
Risks And Side Effects: An Honest Discussion
Common side effects are mild and temporary:
- Bruising, swelling, or redness at injection sites, which usually resolve within 2–5 days.
- A temporary sensation of upper lip tightness or heaviness, often lasting about a week.
Rare complications include:
- Asymmetry if dosing is uneven. This is the most frequent minor complication and is often addressed with a small supplementary dose at the two-week review.
- Over-relaxation that causes a stiff or flattened smile if the toxin spreads to the orbicularis oris. These effects are temporary and fade as the product wears off.
- Temporary difficulty with certain lip movements, such as whistling or using a straw, and minor speech alterations affecting bilabial sounds. These are self-limiting and resolve as the neuromuscular junction regenerates.
There is no reversal agent for Botox, and the effects fade naturally over the typical duration. If results feel uneven, wait for the full effect to develop at two weeks, then return for a follow-up assessment; small touch-up doses can then correct any under-correction. Choosing a board-certified plastic surgeon reduces these risks through deep anatomical knowledge and a conservative dosing philosophy.
For a comprehensive overview of Botox risks across all treatment areas, see our dedicated guide: Botox Side Effects: A Surgeon’s Guide To Risks And Reactions.
Alternatives To Botox For Gummy Smile: A Comparison
The best treatment depends entirely on the underlying cause. Botox offers a non-surgical, reversible first-line option for muscular gummy smiles and works well as a trial run before permanent surgery. Other causes require different approaches.
- Dermal fillers (lip filler): Add volume to a thin upper lip, helping it drape lower over the gum line. Results often last 9–12 months. This option works best for patients whose thin lips contribute to gum display and does not correct muscle-driven gummy smiles. For a detailed comparison of neuromodulators and fillers, see our Botox Vs. Fillers Comparison Chart.
- Lip repositioning surgery: A permanent soft-tissue procedure that limits how high the lip can rise. Recovery usually takes 1–2 weeks. Published meta-analyses report that about 25% of patients experience recurrence of gum show by 12 months as the lip reattaches in a less restricted position.
- Gingivectomy / crown lengthening: Removes excess gum tissue to expose more tooth. This permanent option works best for altered passive eruption.
- Orthognathic (jaw) surgery: Repositions the upper jaw for skeletal causes. This treatment is permanent and highly invasive, with 6–12 weeks of recovery, and serves as the definitive option for vertical maxillary excess.
For muscle-related cases, trialing Botox for two to three cycles before committing to a permanent procedure is a prudent approach, since Botox is reversible and surgery is not.
How To Choose A Qualified Injector For Gummy Smile Botox
Patients can use clear criteria when selecting a provider:
- Board certification in plastic surgery or dermatology.
- Extensive experience with facial injections, particularly the perioral area.
- Before-and-after photos of actual gummy smile patients.
- A thorough consultation that includes assessing your smile dynamics at rest, full smile, and speech.
- Conservative dosing philosophy, starting low and adjusting at a two-week follow-up.
At Mirror Plastic Surgery, Dr. Akash Chandawarkar personally performs all injections. He is a Harvard-educated, Johns Hopkins-trained, board-certified plastic surgeon with fellowship training in aesthetic surgery and advisory roles with Merz Aesthetics and Tiger Aesthetics. His approach reflects the idea that the most skilled injectors often use the least product for the most natural result.
Frequently Asked Questions About Botox For Gummy Smile
How Long Does Botox For Gummy Smile Last?
Results usually follow the 3–4 month duration described earlier.1 The effect gradually wears off as the targeted lip elevator muscles regain activity, and maintenance treatments are needed to sustain the correction. Some patients notice slightly longer results after several consistent treatment cycles as the muscles adapt over time. Planning for three to four treatments per year works well for most people.
Does Botox For Gummy Smile Hurt?
Most patients describe the sensation as a quick pinch. A topical numbing cream is applied beforehand to reduce discomfort, and the entire procedure takes 10–15 minutes with no downtime. The injection sites are small and precise, usually two to four points beside the nose, and most patients return to normal activities immediately after treatment.
Can Gummy Smile Botox Go Wrong?
When an experienced, board-certified injector performs the treatment, complications are uncommon. The primary risk is over-relaxation of the lip elevator muscles, which can cause a stiff, flattened, or asymmetric smile. These effects are temporary and fade as the Botox wears off over the typical duration. There is no reversal agent, so conservative dosing and a two-week follow-up assessment are standard practice. Choosing a provider with deep anatomical knowledge of the perioral region is the most effective way to reduce risk.
Will I Look Unnatural After Treatment?
The goal is subtle balance and a natural-looking smile. A skilled injector uses conservative dosing to reduce excessive gum display while preserving expressive movement. The change should be noticeable to you but appear simply as a more balanced smile to others. If a result feels heavy or unfamiliar in the first week, this often reflects a normal adjustment period as the muscles adapt to their new range of motion.
Is Botox For Gummy Smile Safe?
Botox is safe when a qualified medical professional with specific training in facial anatomy administers it. Botox has an extensive safety record in aesthetic medicine, and serious complications are extremely rare when the injector understands the layered muscle anatomy of the perioral region and applies conservative dosing. Botox for gummy smile is an off-label use, meaning it has not been independently evaluated by the FDA for this specific indication. Off-label use remains legal, common in medical practice, and well-supported by published clinical evidence. Patients who are pregnant, breastfeeding, or have certain neuromuscular disorders should avoid treatment.
Conclusion: Your Smile Deserves Expert Care
Botox for gummy smile is a safe, effective, non-surgical option for the right candidate. It requires expert assessment to diagnose the cause and precise technique to achieve natural results. The margin between a beautifully balanced outcome and an over-treated smile can be just one or two units of product, so provider expertise matters greatly.
A consultation with a board-certified plastic surgeon offers the anatomical knowledge, honest communication, and personalized care needed to make the right decision for your smile. At Mirror Plastic Surgery, every patient receives a comprehensive evaluation of smile dynamics, a clear explanation of whether Botox is appropriate for their anatomy, and a personalized plan focused on natural, lasting results.
- Call or text: 727-361-6515
- Visit us: 780 4th Ave S, St. Petersburg, FL 33701
Contact Ellie today to find out whether Botox for gummy smile is the right treatment for you.
Disclaimer: Results may vary from person to person. Editorial content, before and after images, and patient testimonials do not constitute a guarantee of specific results.
1 Results may vary from person to person. Editorial content, before and after images, and patient testimonials do not constitute a guarantee of specific results.
