Gum Contouring Guide: Therapeutic Gingivectomy Versus Cosmetic Gum Line Correction

Gum contouring is a broad term for procedures that refine the height and shape of the gum line to change how the teeth look. Gingivectomy, which removes gum overgrown from gum disease, is periodontal treatment, while correction that reduces how much gum shows when smiling is for appearance improvement. The scope of examination and national health insurance coverage in Korea differ depending on the purpose.

Published 2026-11-08 · Updated 2026-11-08 · DentalStatics editorial team

Key facts

Targets of gingivectomy	Gum overgrown from inflammation, or from side effects of some blood pressure, epilepsy and immunosuppressant drugs (source: Korea Disease Control and Prevention Agency (KDCA, 질병관리청) National Health Information Portal)
Possibility of recurrence	Even after surgery, the gum can grow back if periodontal disease progresses (source: Korea Disease Control and Prevention Agency (KDCA) National Health Information Portal)
Gum overgrown from drugs	Recurrence is likely if the same drug continues; discuss changing the drug with the treating doctor (source: Korea Disease Control and Prevention Agency (KDCA) National Health Information Portal)
Health insurance	Treatment for appearance improvement is a non-covered item (source: National Health Insurance Service (NHIS, 국민건강보험공단))

What procedures does gum contouring refer to?

Gum contouring is less an official treatment name than a shared name for several procedures that refine the gum line. For therapeutic purposes, the typical one is gingivectomy, which cuts away gum swollen and overgrown because of gum disease; for cosmetic purposes, there are procedures that reduce how much gum shows when smiling or make short-looking front teeth appear longer.

Even if they look similar from outside, a different purpose changes the examination, the scope of surgery and how costs are handled. So at the consultation, the first step is to separate whether the gums are inflamed or the concern is simply shape.

If your gums bleed when brushing or swell, gum treatment comes before correcting the shape. Gum swollen by inflammation can change shape after treatment, so the order is to calm the inflammation first and then reassess the gum line.

When is therapeutic gingivectomy performed?

According to the KDCA National Health Information Portal, when periodontal disease progresses, the gum can grow because of inflammation, and gum can also overgrow as a side effect of some blood pressure drugs, epilepsy drugs and immunosuppressants. When overgrown gum covers the teeth, instruments do not reach well even with scaling or subgingival curettage, so inflammation does not go away completely.

Cutting away the overgrown gum at this point makes the treatment area visible and instrument access easier, so treatment such as root planing can be done effectively. It also becomes easier for the patient to control plaque by brushing.

If gum disease has progressed deeper and damaged the bone around the teeth, a wider operation may be needed, such as a periodontal flap surgery in which the gum is opened and the bone is reshaped or grafted.

Is every case of showing a lot of gum when smiling fixed with gum contouring?

The reason a lot of gum shows when smiling differs from person to person. Several factors act together, such as how much the gum covers the teeth, the height of the bone under the gum, tooth length and alignment, and lip movement.

So the dental clinic checks gum thickness and bone height with X-rays and other tests and then decides whether to reshape only the gum or whether wider surgery, orthodontics or prostheses are needed. If the cause is not the gum, cutting away only the gum makes it hard to get the desired shape.

If laminates or crowns for the front teeth are also planned, the gum line is often arranged first, because the length and shape of the prosthesis are set with reference to the gum line.

Does health insurance cover gum contouring?

Under National Health Insurance Service (NHIS) guidance, treatment for appearance improvement, which is not meant to restore an essential bodily function, is classified as a non-covered item. A cosmetic procedure that only changes the shape of the gum line falls here, and the patient pays the full cost.

By contrast, periodontal surgery performed in the course of treating gum disease can be covered by national health insurance depending on the diagnosis and treatment content. Even a procedure with the same name differs by purpose, so before treatment ask for an explanation of whether it is covered and your out-of-pocket amount.

Whether this procedure is gum disease treatment or cosmetic gum line work
The number and range of teeth reshaped, and whether bone reshaping is included
Whether examination, photo and post-surgery disinfection fees are charged separately
The overall schedule and cost when laminates or crowns are done together

What needs to be managed after gum surgery?

The KDCA explains that even after gingivectomy, the gum can grow back if periodontal disease progresses. In particular, when the gum overgrew because of a drug, recurrence is likely if the same drug is continued, so you should consult the treating doctor and consider switching to another drug.

While the surgical site heals, clean carefully in the way the dental clinic instructed, and afterward keep up toothbrushing and interdental care so plaque does not build up. Regular gum checkups and scaling help keep the reshaped gum line for a long time.

If bleeding does not stop after surgery, or swelling and pain worsen day by day, do not wait for the next appointment and contact the dental clinic that did the procedure. The same applies if you have a fever or see pus.

Common myths and facts

Myth: Gum that has been cut away once never grows back.

The KDCA explains that gum can grow back if periodontal disease progresses, and recurrence is likely if a drug is the cause.

Myth: Gum contouring is always a cosmetic procedure.

Gingivectomy is a type of surgical periodontal treatment performed when overgrown gum makes it hard to treat gum disease.

Frequently asked questions

After gum contouring, can the gum go back down or come up again?

The shape of the gum can change depending on inflammation and care. Even after gingivectomy, the gum can grow back if periodontal disease progresses, so regular checkups and brushing care are needed to keep the result of surgery.

My gums swelled because of a blood pressure drug. Is surgery enough?

Even if gum overgrown from a drug is cut away, it is likely to grow back if the same drug continues. Do not stop the medicine on your own; take the dental diagnosis to the prescribing doctor and discuss whether it can be switched to another drug.

Can gum contouring and laminates be done together?

They are often planned together. Because laminate length and shape are set from the gum line, the gum line is usually arranged first, and the order, such as whether to proceed with laminates after the gum has stabilized, is decided with the dentist.

What tests are done before gum contouring?

An oral examination and X-rays check whether the gums are inflamed, at what height the bone under the gum lies, and the length and alignment of the teeth. Depending on the cause, orthodontics or prostheses may be recommended instead of a gum procedure. If you take blood pressure drugs or immunosuppressants, tell the dentist the drug names too, so the cause can be judged accurately.

How do I find out the cost of gum contouring?

For cosmetic purposes it is non-covered, so prices differ between clinics. Look up the published non-covered prices on the Health Insurance Review and Assessment Service (HIRA, 건강보험심사평가원) website, and if the item is not listed, have the dentist explain the cost by procedure range and number of teeth before treatment.

References

Korean version →