Gum depigmentation in Dubai — causes of dark or black gums and how they are treated

Key facts

• Most dark gums are natural melanin or smoking-related
• New, raised or irregular dark spots need examination
• Depigmentation removes the pigmented surface layer
• Usually done with laser or gentle surgical technique
• Pigment can return, especially in smokers

Why are my gums dark or black?

The most common cause is physiological pigmentation: melanin, the same pigment that colours skin, is deposited in the gum and is more common in people with darker skin tones. It is usually even, symmetrical and present for many years. Smoking stimulates melanin production and causes ‘smoker’s melanosis’, often on the front lower gums, which may fade after stopping. Some medicines, hormonal changes and certain medical conditions can also cause pigmentation. Grey or blue spots near old silver fillings may be an amalgam tattoo. Darkness around a crown margin can come from a metal-based crown showing through thin gum rather than the gum itself.

When dark gums need a medical check

Most gum pigmentation is harmless, but some changes should be examined. See a dentist if a dark spot is new, growing, raised, has irregular edges or uneven colour, bleeds, or appears as a single isolated patch rather than an even band. Widespread new pigmentation in the mouth together with tiredness, weight loss or skin darkening should be reviewed by a doctor, because rarely it reflects a hormonal or systemic condition. Very occasionally pigmented lesions in the mouth are serious, and a biopsy may be advised to confirm the diagnosis. Depigmentation is only considered once the dentist is satisfied the pigment is benign.

How gum depigmentation works

Depigmentation removes the thin top layer of gum that contains the pigment-producing cells, allowing new, lighter tissue to heal in its place. Techniques include laser ablation, gentle surgical removal of the surface layer with a scalpel, and abrasion methods. Laser treatment is popular because it usually causes little bleeding and often needs no stitches. The procedure is done under local anaesthetic and generally covers the gum visible when you smile, often the upper and lower front teeth. Which technique is used depends on the extent of pigmentation, gum thickness and the clinic’s available equipment, which your dentist will explain at assessment.

Healing and aftercare

After depigmentation the gum may look white or raw and feel tender for several days. Ordinary pain relief usually controls discomfort. For the first few days, avoid hot, spicy, acidic and crunchy foods, and do not smoke, as smoking slows healing and stimulates pigment return. Brush the rest of the mouth normally and clean very gently around the treated gum with a soft brush, using the rinse your dentist recommends. Surface healing usually takes one to two weeks, and the final colour becomes clear over a few weeks. Contact the clinic if bleeding does not stop with pressure or swelling increases.

Will the dark colour come back?

Pigmentation can return over months or years in some people, a process called repigmentation. It is more likely in smokers and in people with naturally high melanin levels, and the timing varies considerably between individuals. Avoiding smoking is the most important step to reduce recurrence. If pigment returns, the treatment can usually be repeated. At Manhal Medical Center, Dr. Fariba Alnoory discusses realistic expectations, including that results are not permanent for everyone, and provides a written plan after examining your gums. Treating any gum inflammation beforehand also helps the gum heal evenly and look healthier overall.

Gum disease starts as gingivitis — red, bleeding gums — and can progress to periodontitis, where bone support is lost and teeth loosen. Early treatment stops the progression.

Prepared by the Manhal Medical Center editorial team · Updated: 2026-10-18 · Treating specialist: Dr. Fariba Alnoory

This page is general information and does not replace a consultation. Suitability, risks and results vary between patients.