Three causes, three completely different solutions
Let's start with the basics: a smile is called "gummy" when more than 3–4 mm of gum tissue shows during a full smile. But what exposes it can sit in the muscle, the soft tissue or the bone. That distinction changes everything.
Overactive upper lip
the muscle lifts too high
- the lip pulls back too far when smiling
- visible only in motion — looks normal at rest
- the most common cause of gummy smile
Gum tissue overgrowth
too much tissue covers the teeth
- teeth look short, "hidden" under the gum
- visible both at rest and when smiling
- can result from medication, genetic predisposition or poor oral hygiene
Skeletal jaw structure
the bone protrudes too far
- the jaw is vertically too long or tilted at the wrong angle
- overall facial proportions may be affected
- a deeply structural issue, already visible in a profile analysis
What matches which cause — a decision map
Once you know where your gummy smile comes from, choosing a method becomes logical, not intuitive. Here's how it works in practice:
- Overactive lip → Botox for gummy smile. Botulinum toxin reduces the pulling strength of the upper lip muscle. Less gum shows, and the smile looks natural. A precise, reversible treatment, performed by a doctor.
- Gum tissue overgrowth → gingivectomy. This is a dental (or periodontal) procedure — surgical removal of excess tissue that lengthens the visible tooth crown. The result is permanent. The decision belongs to a dentist, not an aesthetics specialist.
- Short teeth with normal tissue levels → veneers or crowns. Sometimes the gums are healthy, but the teeth are simply short by nature. This is where prosthodontics helps.
- Vertical jaw excess → orthodontics or orthognathic surgery. For skeletal issues, an orthodontist may align the teeth as part of a surgical plan, while a maxillofacial surgeon performs the procedure itself. This is the most complex path.
- More than one cause → a combined plan. It's common for the muscle to be overactive AND for there to be excess tissue at the same time. In that case, sequencing matters: Botox for a quick result, plus a dental consultation about the gum tissue.
The mirror test — check it yourself
You don't need to wait for a consultation to get a preliminary sense of your case. A few simple observations in front of the mirror give genuinely useful clues:
- Smile widely and watch how much gum shows. More than 3–4 mm is a classic gummy smile.
- Now hold your lip down slightly with a finger and smile again. If the result clearly improves, the problem sits mainly in the lip muscle — and Botox is the first candidate to discuss with a doctor.
- Look at your teeth at rest. If they look short, "hidden", and gum shows even when you're not smiling, that points to excess gum tissue rather than a muscular cause.
- Check photos from the front and in profile. A jaw that's clearly protruding or vertically long when seen from the side points towards an orthodontic assessment.
When it's worth combining methods
Gummy smile rarely has one single, clean cause. A mature face, an orthodontic history, anatomical structure — all of this can layer together. Here are a few combinations that make sense in practice:
Botox + gingivectomy
Botox first, to see the muscular effect, then a dentist's assessment of whether there's excess gum tissue. Together they often achieve a better result than either alone.
Botox + veneers
for when the lip is overactive and the teeth are short at the same time. Botox calms the movement, prosthodontics corrects the tooth proportions.
Orthodontics + Botox
for an orthodontic plan with an aesthetic element: braces correct the alignment, Botox smooths out the residual muscular issue once treatment is complete.
Medical consultation as the starting point
whatever the combination, we always start with a conversation: what's the source, what will actually help, and what would be an unnecessary treatment.
The logic is always the same: understand first, then act. Botox for gummy smile is one of the more precise aesthetic treatments — but only when it's indicated. It targets exactly where the problem is, and leaves alone what doesn't need touching. That's why it's worth starting with a doctor who doesn't sell one solution, but asks about the cause.
