Periodontal Plastic Surgery
Gummy Smile Treatment
A gummy smile occurs when an excessive amount of gum tissue shows while smiling, making the teeth look smaller than they are. Although often cosmetic, excess gingival display can affect confidence and the balance of the smile.
Treatment begins with identifying the underlying cause — the relationship between your teeth, gums, lips, and facial muscles. Depending on what’s driving it, treatment may involve gum contouring, crown lengthening, lip repositioning, or a combination, all planned to create balanced proportions while preserving healthy tissue.
This is the page that exists to answer the diagnostic question, because a gummy smile is a description of an appearance, not a diagnosis. Four quite different situations produce it, they look identical to the person in the mirror, and they need entirely different treatments. Choosing a procedure before establishing which one you have is the reason gummy smile treatment sometimes disappoints.
The four are: gum tissue that never receded to its adult position, so normal-length teeth are partly covered; teeth that are genuinely short, having worn down or erupted incompletely; an upper lip that travels further than average when smiling, exposing tissue that would otherwise stay hidden; and an upper jaw that is vertically longer than average, which is a skeletal proportion rather than a soft-tissue one. Several patients have more than one at once.
The examination separates them by measurement — how long the teeth actually are, where the bone sits relative to the gum margin, how far the lip travels between rest and full smile, and how much tooth shows at rest. Those four numbers determine the treatment, and they are why the evaluation comes before any discussion of procedures.
Who it’s for
- Excessive gum display when smiling
- Teeth that appear short relative to the gums
- An uneven gumline that makes the display look worse on one side
- A smile that looks unchanged despite orthodontic treatment
- Self-consciousness about smiling in photographs or covering the mouth when laughing
- Patients who’ve been offered one procedure and want the cause properly assessed first
- Anyone seeking more balanced smile proportions
What to expect
- 1
Measuring the smile
How much gum shows at full smile, how long the teeth actually are, how far the lip travels from rest, and how much tooth shows at rest — the four measurements that separate the causes.
- 2
Assessing gum and bone levels
Where the bone sits relative to the intended gum margin determines whether soft-tissue contouring alone will hold or whether crown lengthening is needed.
- 3
Identifying every contributing factor
Multiple causes frequently coexist. Treating only the dominant one leaves a partial result, so all of them are identified before planning.
- 4
Treatment plan
A tailored plan that may combine gum contouring, crown lengthening, or lip repositioning — and occasionally involves referral for orthodontic or skeletal treatment.
- 5
The procedure
The chosen procedure is performed under local anesthesia with attention to natural, balanced proportions rather than maximum change.
- 6
Healing & maturation
The gums and tissues settle into their refined contour over the following weeks, with final maturation over a few months.
Recovery & aftercare
Recovery depends on the specific procedure used but is generally mild, with tenderness for a few days managed by over-the-counter pain relief. Gum contouring and lip repositioning are both day procedures with a quick return to normal activity.
Where more than one procedure is planned, they may be staged rather than combined — allowing the result of the first to settle before judging how much the second needs to achieve.
The final result refines as the tissues mature over the weeks after treatment. Judging it in the first two weeks is misleading; lip repositioning in particular looks over-corrected initially and relaxes toward its intended position.
Common questions
- What causes a gummy smile?
- Four things, and they need different treatments. Gum tissue that never receded to its adult position; teeth that are genuinely short from wear or incomplete eruption; an upper lip that lifts further than average; or an upper jaw that is vertically longer than average. Many patients have a combination.
- Which treatment is right for me?
- It follows from the cause. Excess gum tissue with adequate bone below responds to gum contouring; where the bone sits too high, crown lengthening is required. A hypermobile lip needs lip repositioning. A skeletal cause needs orthodontic or, occasionally, jaw surgery. The measurements taken at the evaluation determine which.
- Can it be fixed without surgery?
- Sometimes partially. Botulinum toxin temporarily weakens the muscles that elevate the lip and is a reasonable option for a lip-driven gummy smile, though it wears off within months and needs repeating. Orthodontic treatment can address some tooth-position causes. Excess gum tissue genuinely requires a procedure.
- How much gum showing is actually too much?
- There’s no strict threshold, and plenty of attractive smiles show some gum. Displays beyond a few millimeters are commonly perceived as gummy, but the more useful question is whether it bothers you and whether the proportions can be improved safely — not whether you fall on one side of a number.
- Will one procedure be enough?
- Often, but not always. Where two causes coexist — say a lip that lifts too far and gum sitting lower than it should — treating one gives a partial improvement. We identify everything contributing at the assessment so the plan is complete rather than incremental.
- Is it permanent?
- Gum contouring and crown lengthening are generally stable long term, provided the bone level was addressed where needed. Lip repositioning has a recognized tendency to relapse to some degree, more so with larger corrections, and can be revised. We’re candid about which of these applies to your plan.
- I had orthodontic treatment and my smile still looks gummy. Why?
- Because orthodontics straightens teeth but doesn’t change gum level, tooth length, or lip mobility. A gummy smile driven by any of those persists through a perfectly executed orthodontic result — which is exactly the situation this assessment is designed for.
- Will my teeth look too long afterward?
- Not if the design is planned to natural proportions rather than to maximum change. The target is a normal relationship between tooth width and length and a gumline following its natural scalloped form — the result should read as a normal smile, not an altered one.
Talk to a specialist about gummy smile treatment
Whether you’re a patient considering treatment or a dentist referring a case, we’ll evaluate, plan, and coordinate care from diagnosis through follow-up.
Sources
This information is provided for educational purposes and is not a substitute for a professional evaluation. Diagnosis and treatment should always be determined by a qualified dental professional based on your individual condition.