The Gummy Smile Explained: What Dentists Know That Viral Memes Don’t

Introduction

Every so often, a single facial expression takes on a life of its own online. A screenshot gets shared, remixed, and reacted to until it becomes shorthand for something bigger than the person in the photo. In recent years, one such moment involved a public figure’s especially wide smile, which spread across TikTok, X, and YouTube until it became a recognizable meme in its own right.

Behind the jokes, though, sits a genuine dental question that the memes themselves never really answer: why do some smiles show noticeably more gum tissue than others? This article sets the humor aside and looks at the actual dentistry — what a “gummy smile” is, how common it is, what causes it, and what modern cosmetic and periodontal treatment can realistically do about it.

The information below is for educational purposes only and does not constitute medical advice. Anyone considering treatment should consult a qualified dental professional.

How a Single Smile Becomes a Meme

Viral moments like this tend to follow a predictable pattern, and this one was no exception. According to the internet-culture database Know Your Meme, the expression resurfaced repeatedly across interviews, debate clips, and short-form video over several years — the same wide smile appearing again and again in different contexts. Repetition alone doesn’t create a meme, though; contrast does the rest. A broad, high-gum smile appearing in a tense or serious setting reads as unexpected, and unexpected expressions are exactly what meme culture tends to seize on.

The moment is widely traced to a September 2024 episode of the YouTube debate series Surrounded, when a participant reacted on camera to the smile, calling it “very creepy.” That single reaction detached the expression from its original context. From there, frozen frames, fan-made illustrations, and endless remixes turned one person’s smile into a shared visual symbol — the way memes usually do.

It’s worth being clear about what this article is not doing: it makes no clinical assessment of any individual, and terms like “creepy” or “weird” that circulate online carry no dental meaning whatsoever. What the meme discourse did consistently focus on, however, was a real and well-documented dental feature — the amount of gum tissue visible during a smile, which dentistry calls a gummy smile.

What Is a Gummy Smile, Clinically Speaking?

In dental terms, a gummy smile is a nonpathological condition in which more than 2 mm (about 0.08 inches) of gum tissue is visible above the upper front teeth during a full smile. This threshold was originally defined by orthodontists Sheldon Peck and Leena Peck in 1995, and it was reconfirmed as the accepted clinical standard in a 2024 systematic review published in Dentistry Journal (Maleki et al., 2024).

The formal term is excessive gingival display, often abbreviated EGD. It’s more common than most people realize: a systematic review published in BioMed Research International found that excessive gingival display affects roughly 10% of adults aged 20 to 30 in the United States, and it appears more frequently in women than in men (Younespour et al., 2021).

Importantly, having a gummy smile is not a sign that something is wrong with a person’s oral health. It’s simply an anatomical variation — one of many ways human faces differ from each other.

What Causes a Gummy Smile?

There isn’t one single cause. Dentists generally recognize five main contributors, and identifying which one (or combination) applies to a given patient is the whole basis of treatment planning:

1. A hyperactive upper lip — the lip elevates higher than average when smiling.
2. A short upper lip — less lip length means more gum is exposed at rest.
3. Altered passive eruption — the gum tissue never fully receded from the tooth crowns during development, leaving teeth looking shorter than they are.
4. Vertical maxillary excess — the upper jaw itself is longer than average, a skeletal rather than soft-tissue cause.
5. Dentoalveolar extrusion — the front teeth have erupted further than normal, pushing the gum line down with them.

Each of these can produce a visually similar result, but they call for very different treatments. That’s why the amount of visible gum matters far less to a dentist than the reason behind it.

Is a Gummy Smile Genetic?

Partly, yes. Two of the five causes above — vertical maxillary excess and altered passive eruption — relate to inherited jaw structure and tooth-eruption patterns, meaning they can run in families. Muscle-driven causes, like a hyperactive upper lip, vary more between individuals, even within the same family. Determining which factor is at play typically requires a clinical exam with photographs, and in cases involving jaw structure, radiographic imaging.

Is a Gummy Smile a Dental Health Problem?

In most cases, no. Excessive gingival display is classified as a nonpathological anatomical variation, and any treatment is elective and cosmetic rather than medically necessary (Maleki et al., 2024). The main exception is when gum overgrowth is caused by something pathological — certain medications, for instance, can cause gingival overgrowth — which a dentist would rule out during an initial exam. Outside of that, a healthy smile that simply shows more gum tissue needs treatment only if the person wants it.

What Can Cosmetic Dentistry Actually Do About It?

There are four evidence-based treatment categories for reducing visible gum display:

A 2024 meta-analysis pooling data from 633 patients found that surgical and nonsurgical approaches produced similar results at 1 and 3 months — the real difference showed up later. Surgical outcomes (like crown lengthening and lip repositioning) remained stable at 6 and 12 months, while botulinum toxin results had partially relapsed by 6 months and returned close to baseline by 12 months (Maleki et al., 2024). In other words: the treatments look comparable at first, but they diverge significantly in how long the results last.

The right choice depends entirely on which of the five underlying causes is responsible — which is why diagnosis always comes before any cosmetic decision is made.

Does Periodontal Surgery Reduce a Gummy Smile?

Yes, when the cause is rooted in the gum tissue or lip position rather than the jawbone itself. Esthetic crown lengthening — a periodontal surgical procedure — reshapes the gum line to expose more of the natural tooth crown, and pooled data on lip repositioning surgery shows reductions in gum display that remain stable at the 12-month mark (Younespour et al., 2021). Skeletal causes, such as vertical maxillary excess, fall outside what periodontal surgery alone can address; those are typically managed through orthodontics or jaw surgery instead.

Can Porcelain Veneers Fix a Gummy Smile?

Veneers can improve how teeth look, but they can’t lower the gum line by themselves. What they can do is change the visible length, shape, and shade of the teeth — which is why veneers are frequently combined with esthetic crown lengthening when a patient has both short-looking teeth and a high gum line. Porcelain veneers made with modern materials like e-max ceramic can last 10–20 years with proper care, which makes a combined gum-and-veneer treatment plan a long-term decision rather than a quick fix.

The general sequence matters here: gum contouring is done first to establish the gum line, and any restorative work (veneers or crowns) follows that established line — not the other way around. Reversing the order leaves tooth proportions dictated by wherever the existing gum happens to sit, rather than by design.

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What Does Digital Smile Design Involve?

Before any irreversible treatment begins, many clinics now use Digital Smile Design — a photographic and video-based planning process that maps a patient’s lip movement, tooth proportions, and gum levels, and then generates a preview of the planned outcome on the patient’s own face. This lets someone considering gum-related treatment see a realistic projection of the result before a single procedure is performed, rather than relying on guesswork or verbal description alone.

Why Does the Internet Judge Smiles So Differently From Dentists?

This gets at the real gap between meme culture and clinical dentistry. Online commentary tends to judge a smile from a single frozen frame — one screenshot, stripped of context, repeated until it becomes a symbol. A dentist, by contrast, evaluates a smile as moving anatomy: lip mobility, gum symmetry, tooth proportion, and the smile’s arc across dozens of natural expressions, not one still image.

That’s a meaningful gap, because a smile that looks unusual frozen mid-frame is often completely unremarkable in motion. Viral descriptors like “creepy” or “weird” aren’t dental terms — they’re reactions to a single decontextualized image. Gingival display, by contrast, is a measurable anatomical variation, explicitly classified as nonpathological in the peer-reviewed literature (Maleki et al., 2024).

The Takeaway

A gummy smile is common — affecting roughly one in ten adults in their twenties — and in the vast majority of cases, it’s simply a variation in facial anatomy rather than a health concern. Five distinct underlying causes can produce it, and correctly identifying which one applies is the foundation of any treatment plan. Modern options range from a reversible, temporary fix (botulinum toxin) to permanent surgical solutions (crown lengthening, lip repositioning), often combined with orthodontics or veneers depending on the case.

Whatever sparks curiosity about the topic — a viral clip, a personal question about one’s own smile — the underlying dentistry is well studied, well documented, and considerably more nuanced than a single screenshot could ever suggest.

Sources referenced:

• Peck, S. & Peck, L. (1995) — original clinical threshold for gummy smile
• Maleki et al. (2024), Dentistry Journal — systematic review and meta-analysis on gummy smile classification and treatment outcomes
• Younespour et al. (2021), BioMed Research International — systematic review on prevalence and periodontal treatment outcomes