In the grooves on top of a back tooth
Often stain trapped in deep grooves, sometimes decay starting under it. The two can look identical from above.
Dental condition
Black Spot on a Tooth: What It Is and What to Do in Dubai
A dark spot on a tooth is not always a cavity. It can be a stain that polishes off, tartar at the gum line, the edge of an old filling, or old decay that has hardened and stopped. Only an examination tells which.
- Examination before any drilling
- Stain removal and cleaning
- Tooth-coloured fillings when needed
A clear photo of the spot is welcome when you message us, but the diagnosis is made in the chair.
Quick answer
Is a black spot on a tooth always a cavity?
No. A black or brown spot on a tooth can be active decay, but it is often surface stain from tea, coffee or smoking, tartar near the gum line, the edge of an old filling, or decay that has hardened and stopped. A dentist tells them apart by cleaning and drying the tooth, checking whether the spot is soft or hard, and taking an X-ray. At Creative Arts in Dubai, only active decay is filled.
Who treats you here Dr. Duaa Ameen General Dentist · Dr. Julia General Dentist · Dr. Marina Antoniuk Dentist
Every dentist’s licence can be checked on the DHA Sheryan medical directory.
27 yearsIn-house dental laboratory in the same building
Written planItemised treatment plan before you commit
Open daily10:00–20:00, seven days a week
Jumeirah 3614 Jumeira St, Umm Suqeim 1, Dubai
Where is the spot?
What a black spot can mean, depending on where it is
Position gives the first clue. It is a clue, not a diagnosis.
Near the gum line
Commonly tartar stained dark, or surface stain. Decay on exposed root surfaces can also look brown here. See black tartar.
Between two teeth
A dark shadow seen through the enamel can be a cavity at the contact point. These are best checked with an X-ray.
At the edge of a filling
Stain at the margin, old silver filling showing through thin enamel, or new decay leaking in under the filling.
Cavity, stain or tartar?
How do the causes of a black spot compare?
These are typical features. Several causes can coexist on one tooth, and an examination is needed to be sure.
| Cause | Typical look and feel | Usual treatment |
|---|---|---|
| Surface stain (tea, coffee, karak, smoking) | Brown to black, on the surface or in grooves; hard and smooth | Professional cleaning and polishing, such as air-polishing stain removal |
| Tartar | A dark, rough deposit at or under the gum line | Scaling and cleaning; see teeth cleaning |
| Active decay | Brown, grey or black; soft or sticky; may be a hole; sensitivity to sweet or cold | A tooth-coloured filling; larger if deep |
| Arrested (stopped) decay | Dark brown or black, hard and shiny; no hole that catches | Monitoring and fluoride; sometimes a filling for appearance |
| Old filling edge | A dark line or grey shadow around or through the tooth near a filling | Polishing, or replacing the filling if it is leaking |
| A whole tooth turning grey | The colour change is in the tooth, not a spot on it, often after a knock | Nerve testing; see dark tooth |
General yellowing or browning across many teeth is covered on our stained teeth page; this page is about a single spot or line.
Diagnosis
How does a dentist tell a cavity from a stain?
Looking alone is often not enough. A combination of simple checks gives the answer.
Clean and dry
Plaque and loose stain are removed and the tooth is dried, so the true colour and surface can be seen under good light.
ExaminationCheck the surface gently
Active decay feels soft or sticky; arrested decay and stain feel hard and smooth. This is done gently so that early enamel is not damaged.
ExaminationX-ray if needed
Bitewing X-rays show whether decay lies under a dark groove, between teeth or beneath a filling. See dental X-rays.
When neededExplain and decide
You are shown what was found and whether it needs a filling, a clean, monitoring or nothing at all.
Same visit
Seek prompt dental assessment if…
the spot is next to a tooth that aches, throbs or wakes you at night, pain with hot or cold lingers, a piece of tooth or filling has broken, or the gum near it is swollen or has a boil. The clinic is open daily, 10:00–20:00, with no overnight service. Facial swelling with fever, difficulty breathing or swallowing, or swelling spreading towards the eye or neck needs a hospital emergency department straight away.
What not every case needs
Does every black spot need a filling?
No. Drilling a spot that is only stain or decay that has already stopped removes healthy tooth for no benefit.
Usually enough
- A professional clean and polish for surface stain
- Scaling for dark tartar at the gum line
- Monitoring and fluoride for hard, arrested decay
- A fissure sealant for a stained but sound deep groove at risk
Worth knowing
- Whitening products do not remove decay, and will not lighten tartar or fillings
- Scraping a spot at home can scratch enamel and damage the gum
- A dark spot that is soft or growing is unlikely to stop on its own
- A black line at the edge of a crown is a different problem; see dark line around a crown
After a filling
Why is there a black spot after a filling?
A dark area next to a filling has a few common explanations. With older silver (amalgam) fillings, the metal can show through the thin enamel beside it as a grey shadow, and the tooth around it can take on a grey tint over the years; that is a colour change rather than decay. A thin dark line at the margin of a tooth-coloured filling is often stain that has collected in a tiny step at the edge and can sometimes be polished.
The one that matters is new decay at the edge, where bacteria leak in under the filling. It may be soft, catch floss or show on an X-ray as a dark area under the filling, and it usually means the filling needs replacing. If a filling has come out altogether, see filling fell out.
Prevention
How can you prevent dark spots coming back?
For stain, rinsing with water after tea, coffee or karak, not sipping them over long periods, and regular professional cleaning keep build-up down; our guide to coffee, karak and shisha stains covers this in detail. For tartar, careful brushing at the gum line and cleaning between the teeth matter most, because tartar forms from plaque that is left behind.
For decay, fluoride toothpaste twice a day, keeping sugar to mealtimes, and check-ups that catch early changes are the core. Our page on tooth decay explains the stages, and early chalky marks rather than dark ones are covered under white spots on teeth.
Who treats you
Dentists who check dark spots at Creative Arts
Dr. Duaa Ameen, Dr. Julia and Dr. Marina Antoniuk examine teeth, remove stain and tartar, and place tooth-coloured fillings when a spot turns out to be active decay.
Further reading from independent sources
Independent sources for readers who want the wider evidence on this topic. Study figures are averages, not a promise for any one patient.
- National Institute of Dental and Craniofacial Research. Tooth Decay. NIDCR / NIH, n.d..
Patient questions
Frequently asked questions
Can a black spot on a tooth be removed by polishing?
If it is surface stain or stained tartar, usually yes: professional cleaning and polishing remove it. If the spot is decay or the edge of an old filling, polishing will not remove it, because the colour is in or under the tooth surface. A dentist can tell which after cleaning and drying the tooth.
What does a black spot near the gum line on a tooth mean?
Near the gum line it is most often tartar that has picked up stain, or surface stain. It can also be decay on an exposed root surface, which is softer and often sensitive. Scaling removes tartar; root-surface decay needs a filling. A gentle check and sometimes an X-ray tell them apart.
Why is there a black spot on my tooth but no pain?
Many causes do not hurt: stain, tartar, arrested decay and even early active decay. Pain usually starts only when decay reaches the dentine or close to the nerve. A spot that does not hurt is still worth checking, because active decay found early needs a much smaller filling.
Is black tartar on teeth the same as tooth decay?
No. Tartar is hardened plaque that sticks to the tooth surface and can turn dark, especially below the gum line or in smokers; it is removed by scaling and cleaning. Decay is damage to the tooth itself. The two can occur together, because tartar holds bacteria against the tooth at the gum line.
Is a black spot around my filling a problem?
Sometimes. It may be harmless stain at the margin, or old silver filling showing through thin enamel. It can also be new decay leaking in under the edge, which needs the filling replaced. Your dentist checks the edge and may take an X-ray to see under the filling.
What is arrested decay on a tooth?
Arrested decay is an old cavity or patch of decay that has stopped progressing, usually because the area became easier to clean or got more fluoride. It looks dark brown or black, feels hard and shiny, and often needs only monitoring. A dentist distinguishes it from active decay, which is soft.
Can a black spot on a child's tooth be a cavity?
Yes, children can have dark cavities, especially in the grooves of back teeth. Some children also develop a harmless black line of stain near the gum, caused by certain bacteria. Any dark spot on a child's tooth is worth checking; see our guide to cavities in baby teeth for more.
Keep exploring
Related treatments
TreatmentDental fillings in DubaiTooth-coloured fillings when a spot is active decay.ConditionTooth decayStages from white spot to abscess.ConditionStained teethYellow, brown and grey discolouration across the smile.ConditionBlack tartarDark deposits at the gum line and how they are removed.ChildrenCavities in baby teethSpotting and treating decay in young children.
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One clinic, in Jumeirah 3 / Umm Suqeim 1
Creative Arts has a single clinic on Jumeira Street (Jumeirah Beach Road). Ask about parking when you book.
- Address614 Jumeira St, Jumeirah 3, Umm Suqeim 1, Dubai
- Opening hoursDaily 10:00–20:00, including Friday and Sunday
- Neighbouring areasJumeirah 1–3, Umm Suqeim 1–3, Al Wasl, Al Safa, Al Manara
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- Address614 Jumeira St, Jumeirah 3, Umm Suqeim 1, Dubai · Our clinic in Jumeirah 3 / Umm Suqeim 1
- Opening hoursClinic open daily, 10:00–20:00
- Phone+971 4 342 4444 · WhatsApp +971 56 677 7537
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