Pink Gum Treatment

Dark gums are more common than you think and more treatable than most people know.

When people think about smile aesthetics, they focus on teeth — their colour, shape, and alignment. But for many people, it’s the gums that quietly undermine the confidence of a smile. Dark, brown, or uneven gum pigmentation is a cosmetic concern that affects a significant number of adults — and one that very few dental clinics are equipped to address effectively.

Table of contents

• What’s laser gum bleaching

• What causes dark gums?

• How laser depigmentation works?

• Laser vs other methods

• Who is suitable

• Procedure & preparation

• How to prepare yourself before the appointment

• Cost in Bangkok vs abroad

• FAQs

What’s laser gum bleaching

Laser gum bleaching (or Laser Gum Depigmentation) is a gentle, precise laser procedure that removes melanin pigmentation from the gum tissue, restoring a naturally pink, healthy-looking gum line. The results are visible immediately after treatment, and in most cases, the procedure is completed in a single visit.

If you’ve ever held back a smile because of the colour of your gums — this page explains exactly what’s possible, how it works, and what to expect if you’re considering treatment in Bangkok.

What causes dark gums?

Dark gums are rarely a sign of poor health — in most cases, they’re caused by natural melanin pigmentation, the same pigment that determines skin colour. We explain the four main causes: genetic melanin, smoking, certain medications, and post-inflammatory pigmentation, and which respond best to laser treatment.

• Natural melanin (genetic)
  The most common cause. People with naturally higher melanin levels — particularly those of South Asian, African, Middle Eastern, or Southeast Asian heritage often have genetically darker gum tissue. This is entirely normal and not a health concern.

• Smoking
  Nicotine stimulates melanocyte activity in the gum tissue, causing “smoker’s melanosis” — dark patches that develop over years of tobacco use. These respond well to laser treatment, though results are best maintained after quitting.

• Certain medications
  Some long-term medications — including certain antimalarials, antipsychotics, and minocycline — can cause gum pigmentation as a side effect. Response to the laser varies depending on the underlying cause and duration.

• Post-inflammatory pigmentation
  Gum tissue can produce excess melanin after inflammation or injury — a healing response that leaves lasting dark patches. Laser treatment is effective once the underlying inflammation is resolved.

How laser depigmentation works?

To understand how Pink Gum Laser works, it helps to first understand what makes gums appear dark. Gum pigmentation comes from melanin — the same natural pigment that gives skin, hair, and eyes their colour. Melanin is produced by specialised cells called melanocytes, which sit in the outermost layer of the gum tissue (the epithelium).

The science behind Pink Gum Laser is it selectively targets and destroys the melanocytes responsible for producing the excess pigment — while leaving every other cell in the gum completely unaffected.

The laser used at COSDENT works on a principle called selective photothermolysis — the ability of a specific laser wavelength to be absorbed by one particular target (in this case, melanin and melanocytes) while being ignored by all surrounding tissue.

This selectivity is what makes laser depigmentation safe, precise, and pain-free compared to older methods. The laser energy is calibrated to the exact absorption spectrum of melanin — meaning only the pigment-producing cells absorb the energy and are destroyed. Healthy gum tissue, blood vessels, and connective tissue are not affected at all.

Laser vs other methods

Laser depigmentation is now the gold standard — but not all clinics use the same approach. We compare laser vs surgical scraping, chemical depigmentation, and cryosurgery across factors like precision, recovery time, and suitability for dental tourists on a short Bangkok trip.

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Who is suitable

• Naturally dark or uneven gums due to genetics

• Adults with healthy gums

• Patients with post-inflammatory pigmentation

• Non-smokers or patients willing to stop smoking
  Note: Laser treatment is still effective — but results are shorter-lived in patients who continue smoking. Nicotine stimulates melanocyte activity, meaning repigmentation may return faster than in non-smokers. We recommend stopping or significantly reducing smoking for at least 2 weeks before and after treatment to maximise longevity.

Procedure & preparation

Duration: 60-90 minutes

1. Arrival & consultation review
   Your dentist reviews your medical history, confirms your goals, and photographs your gum colour as a baseline record. This photo is your before — it’s what makes the after meaningful.

2. Gum cleaning & preparation
   The gum surface is gently cleaned and dried. A retractor may be placed to keep your lips and cheeks comfortably away from the treatment area — giving the dentist clear, unobstructed access to every part of the gum line.

3. Anaesthetic application
   A topical numbing gel is applied to the gum surface and left for 3–5 minutes. For most patients, this is all that’s needed. If deeper anaesthetic is required, a local injection follows — the topical gel ensures the injection itself causes minimal discomfort.

4. Laser depigmentation
   The Beam of Beauty laser is passed over the pigmented areas in precise, controlled movements. You may feel a very mild warmth or tingling sensation as the laser targets the melanin — most patients describe this as subtle and entirely tolerable. Your dentist works systematically across all planned teeth, ensuring even coverage.

5. Post-treatment rinse & review
   Once the laser pass is complete, you’ll rinse and your dentist will review the treated area. The gums will appear lighter or slightly whitened immediately — this is the expected post-treatment appearance, not the final result. Your dentist will explain exactly what to expect in the coming days and answer any questions before you leave.

How to prepare yourself before the appointment

1. Brush and floss thoroughly the morning of your appointment — clean gum tissue makes the laser more precise and reduces the risk of any post-treatment irritation.

• Do not use whitening toothpaste or mouthwash containing alcohol on the day of treatment. These can temporarily sensitise the gum surface.

2. Eat a normal meal beforehand.

• Avoid alcohol for 24 hours before treatment — alcohol can thin the blood and affect anaesthetic response.

• Avoid very spicy or acidic food on the day — these can temporarily inflame the gum surface.

3. Avoid smoking for at least 24 hours before treatment — nicotine constricts blood vessels and can affect healing. Ideally, reduce or stop in the days leading up to your appointment.

4. Inform COSDENT of any medications you take — particularly blood thinners (aspirin, warfarin, clopidogrel), immunosuppressants, or medications known to affect gum tissue.

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Cost in Bangkok vs abroad