Is it safe? What are the side effects?

Treatment is carried out under local anaesthetic using non-ionising light — not the kind of radiation involved in an X-ray. For a few days afterwards there may be mild discomfort and transient sensitivity, with the surface healing over about one to two weeks. Uncommonly, healing may be slower or the tone uneven; these are explained during informed consent. The most important safeguard is not the device but the order of steps: pathological causes are excluded, and the pigment confirmed as physiological, before anything cosmetic is done.

Will the darkness come back after treatment?

It can. Melanocytes may re-deposit pigment over time, generally faster in people who smoke. How long the result lasts varies between individuals, and we explain this honestly before treatment. If you want the result to last, stopping smoking is the single most effective thing you can do.

Can every dark patch be treated with laser?

No. Amalgam tattoos cannot be lightened by laser; medication-related and systemic pigment need their underlying source addressed; and patches of suspicious appearance must be biopsied first to exclude pathology. Only pigment confirmed as physiological proceeds to treatment.

Is laser definitely better than conventional scraping methods?

There is more than one method of removing gum pigment (surgical scraping or abrasion, laser, and others). The laser's advantages are less bleeding, usually no sutures and greater precision. To be candid, however — large areas, cases that also involve gum-shape problems, or complex cases needing crown lengthening or bone recontouring at the same time, may be better served by conventional surgical methods, carried out by a clinician with the relevant background. Which method is used is decided by assessment; we do not use the equipment for its own sake.

Does it hurt? How long is recovery?

Treatment is carried out under local anaesthetic and is generally not painful. There may be mild discomfort for a few days afterwards, usually manageable with ordinary pain relief. The gums heal progressively over about one to two weeks, during which irritating foods and smoking should be avoided.

Can smokers have this treatment?

Yes, but we will be straightforward with you: if you continue smoking, the pigment generally returns faster. We set out the expected result clearly before treatment so that you can decide for yourself whether it is worthwhile.

How is this different from gum reshaping or crown lengthening?

Depigmentation improves the colour of the gums; crown lengthening and gum reshaping（/en/pages/gummy-smile-correction） improve the shape and proportion of the gums. The two can be carried out separately or together as required, and we will explain both at your assessment.

From what age is it suitable?

Generally we suggest waiting until adulthood, with stable gum condition and healthy periodontal tissues. Individual situations are decided after assessment.

How much does it cost?

Generally from HK$6,000 per arch, quoted by the extent and the number of sessions required. The assessment of the cause, including any investigations, is priced and explained separately beforehand. Full fees are itemised after assessment and before treatment begins.

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LASER DENTISTRY · GUM DEPIGMENTATION

Dark Gums Affecting Your Smile? Establish the Cause First, Then Discuss Improvement

Darkening of the gums is most often physiological melanin or related to smoking, and the appearance can be improved with a soft-tissue laser. But dark patches can also signal medication effects, a systemic condition or, rarely, pathology. Our order therefore never changes: assess the cause, confirm it is safe, then treat cosmetically.

WhatsApp enquiry Call +852 3956 9387

Why do gums darken?

Diffuse melanin pigmentation of the gums. Illustrative photo; individual cases vary.

Cause	Typical appearance	Direction of management
Physiological melanin (constitutional)	Symmetrical, diffuse, unchanged over many years; more common in people with deeper skin tones	A normal variation. Where it affects appearance, laser improvement can be considered
Smoker's melanosis	Mainly on the labial gum of the front teeth, related to smoking volume	May fade gradually after stopping smoking; laser can speed the cosmetic improvement
Amalgam tattoo	A single blue-grey spot next to an old metal filling	Metal particles — the laser cannot remove this. Usually no treatment needed; an X-ray or biopsy can confirm
Medication-related pigment	Associated with certain medicines (for example some antimalarials, minocycline)	Review the medication with your doctor first, rather than going straight to laser
Related to a systemic condition	Accompanied by other bodily signs	Requires medical follow-up of the underlying cause — this is not a cosmetic problem
A patch of suspicious appearance	Single, asymmetrical, changing quickly, raised or ulcerated	Biopsy first to exclude pathology — see our oral biopsy guide

How the laser procedure works

Healthy gums and a natural smile. Illustrative photo; individual cases vary.

Assessment of the cause — we review the distribution, form, history and your medications, excluding amalgam tattoo, medication-related, systemic and suspicious lesions one by one, with an X-ray or biopsy where needed.
Treatment plan and informed consent — once the pigment is confirmed as physiological, we explain the extent, the expected result, the healing process and the fact that pigment may partially return over time. We begin only once you agree.
Laser depigmentation — under local anaesthetic, the pigmented surface layer of gum tissue is removed with the soft-tissue laser. There is little bleeding and usually no need for sutures.
Healing and review — the gums heal progressively to a pink tone over about one to two weeks; a review appointment confirms healing and the final result.

When we will not carry it out

Where the cause has not been confirmed — no cosmetic treatment before assessment, and suspicious lesions are biopsied first. This order is not negotiable.
Amalgam tattoo — the laser cannot address metal particles. We tell you plainly rather than charging you for something that will not work.
Medication-related or systemic pigment — the source is not the gum surface, and we will advise the appropriate medical follow-up.
Active periodontal disease — not suitable while the gums are inflamed. Complete periodontal treatment first, then reassess once the condition is stable.
Expecting "one treatment and it stays perfect forever" — melanin can re-deposit and smoking accelerates it. We make no permanence claims.

⚠ If a dark patch is single, asymmetrical, recently appeared or changing — growing, darkening, becoming raised or ulcerated — do not treat it as a cosmetic issue. Have it assessed promptly. Excluding pathology always comes first.

Fees

Laser gum depigmentation is quoted by extent and the number of sessions, generally from HK$6,000 per arch. The assessment of the cause, including any investigations required, is priced and explained separately beforehand. Full fees are itemised after assessment and before treatment begins.

Want to improve dark gums? Start with an assessment

You are welcome to WhatsApp us a photo of your smile — we will arrange an assessment and establish the cause before discussing any treatment.

WhatsApp enquiry Call +852 3956 9387

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FAQ

Frequently Asked Questions

Is it safe? What are the side effects?
Treatment is carried out under local anaesthetic using non-ionising light — not the kind of radiation involved in an X-ray. For a few days afterwards there may be mild discomfort and transient sensitivity, with the surface healing over about one to two weeks. Uncommonly, healing may be slower or the tone uneven; these are explained during informed consent. The most important safeguard is not the device but the order of steps: pathological causes are excluded, and the pigment confirmed as physiological, before anything cosmetic is done.
Will the darkness come back after treatment?
It can. Melanocytes may re-deposit pigment over time, generally faster in people who smoke. How long the result lasts varies between individuals, and we explain this honestly before treatment. If you want the result to last, stopping smoking is the single most effective thing you can do.
Can every dark patch be treated with laser?
No. Amalgam tattoos cannot be lightened by laser; medication-related and systemic pigment need their underlying source addressed; and patches of suspicious appearance must be biopsied first to exclude pathology. Only pigment confirmed as physiological proceeds to treatment.
Is laser definitely better than conventional scraping methods?
There is more than one method of removing gum pigment (surgical scraping or abrasion, laser, and others). The laser's advantages are less bleeding, usually no sutures and greater precision. To be candid, however — large areas, cases that also involve gum-shape problems, or complex cases needing crown lengthening or bone recontouring at the same time, may be better served by conventional surgical methods, carried out by a clinician with the relevant background. Which method is used is decided by assessment; we do not use the equipment for its own sake.
Does it hurt? How long is recovery?
Treatment is carried out under local anaesthetic and is generally not painful. There may be mild discomfort for a few days afterwards, usually manageable with ordinary pain relief. The gums heal progressively over about one to two weeks, during which irritating foods and smoking should be avoided.
Can smokers have this treatment?
Yes, but we will be straightforward with you: if you continue smoking, the pigment generally returns faster. We set out the expected result clearly before treatment so that you can decide for yourself whether it is worthwhile.
How is this different from gum reshaping or crown lengthening?
Depigmentation improves the colour of the gums; crown lengthening and gum reshaping（/en/pages/gummy-smile-correction） improve the shape and proportion of the gums. The two can be carried out separately or together as required, and we will explain both at your assessment.
From what age is it suitable?
Generally we suggest waiting until adulthood, with stable gum condition and healthy periodontal tissues. Individual situations are decided after assessment.
How much does it cost?
Generally from HK$6,000 per arch, quoted by the extent and the number of sessions required. The assessment of the cause, including any investigations, is priced and explained separately beforehand. Full fees are itemised after assessment and before treatment begins.