A black mark on a tooth can mean very different things. It may be a removable surface stain, hardened plaque and tartar, tooth decay or a change happening inside the tooth itself.

That is why black teeth treatment should begin with identifying the cause rather than immediately trying to whiten or remove the dark area. Black spots on teeth, a single tooth that has darkened and a black area around the gum line may look similar, but they can require entirely different treatment. Tooth decay, for example, can cause white, brown or black spots and may eventually form a cavity.

What Treatment is Used for Black Teeth?

There is no single solution for black teeth. A dentist will assess where the colour is coming from and whether the tooth itself has been damaged. Depending on the diagnosis, treatment may include:

  • Professional cleaning for surface staining or deposits
  • Restorative treatment for decay
  • Root canal treatment for infection inside the tooth
  • Repairing a broken or cracked tooth
  • Replacing a failing restoration
  • Protecting a weakened tooth with a crown

The treatment should address the underlying problem first. Cosmetic improvement comes afterwards where appropriate. For a closer look at the different causes behind dark discolouration, see our guide to black teeth causes.

Black Spots on Teeth: Stain or Decay?

Black spots on teeth are not automatically cavities. Some marks sit on the surface and may be caused by external staining. Others represent black tooth decay, where the tooth structure itself has been damaged.

If decay has formed a cavity, the damaged tissue may need to be removed before the tooth is restored. Fillings are commonly used to repair holes caused by decay. For suitable cases, an invisible filling can restore the affected area while matching the natural appearance of the tooth.

What is Black Tooth Plaque?

The phrase black tooth plaque can describe dark material that appears close to the gum line, but the colour is not always caused by plaque itself. A recognised form of extrinsic black staining can appear as dark dots or lines near the gingival margin. This staining needs to be distinguished from decay because the two require different treatment.

If the dark material is caused by surface deposits or tartar, professional cleaning may be appropriate. A hygienist can remove plaque and tartar that have accumulated on the teeth. Our guide to how to get rid of black stains on teeth explains which marks may be removable and why some dark areas need restorative treatment instead.

Can a Black Tooth Be Saved?

Often, yes. However, the answer depends on why the tooth has changed colour and how much healthy structure remains. A tooth can darken after trauma or because the pulp inside has been damaged. If infection develops inside the tooth, root canal treatment may be considered to remove the infection and preserve the tooth where possible. The tooth may then need further restoration depending on its condition.

What If I Have Black Rotted Teeth?

The phrase black rotted teeth is often used to describe teeth that have been extensively damaged by decay. Advanced decay can weaken a tooth until it develops a large cavity or breaks apart. Treatment depends on how much healthy structure remains. A tooth may be restored with a filling, while more extensive damage may require root canal treatment, a crown or, in some cases, extraction.

A tooth that looks severely damaged should therefore be assessed rather than assumed to be beyond repair. Our guide why are my teeth turning black? explores the reasons a tooth may gradually or suddenly become darker.

Black Broken Teeth and Cracked Teeth

A black broken tooth may have fractured because decay weakened it. Alternatively, the tooth may have darkened internally before the fracture occurred. The same applies to a black cracked tooth. A crack can become stained, but darkening may also indicate decay around the damaged area or deeper changes within the tooth.

Black Wisdom Tooth and Black Molar Teeth

A black wisdom tooth or black molar tooth can be difficult to examine yourself because back teeth have deep grooves and are harder to see. Dark areas may be surface staining, but they can also indicate decay. If the tooth has developed a hole, feels soft, causes sensitivity or hurts when biting, it should be examined. Wisdom teeth require individual assessment because their position and usefulness can influence whether restoration or removal is the most suitable option.

Can Black Front Teeth Be Treated?

A black front tooth can be particularly noticeable when you smile, but appearance should not be the only consideration. A surface stain may respond to professional cleaning. A tooth that has darkened from within needs investigation before cosmetic treatment is considered. The dentist may first need to treat decay, infection or another underlying problem. Teeth whitening can lighten natural tooth colour, but it does not treat decay or restore damaged tooth structure. It also does not change the colour of crowns, implants or dentures.

My Crown Fell Off and the Tooth is Black

A dark tooth underneath a crown does not automatically mean the tooth cannot be saved. The colour may be related to previous changes within the tooth, staining or decay around the restoration. The underlying tooth should be examined before the crown is simply replaced. Where the tooth remains suitable for restoration, a dental crown may help restore and protect a significantly damaged tooth.

Black Around Teeth and Between the Teeth

Black around teeth can come from several locations. The colour may be on the tooth surface, between neighbouring teeth or close to the gum line. A dark area between teeth can be difficult to assess without an examination because decay may develop in areas that are not easily visible. Likewise, black between teeth and gums may actually be staining on the tooth rather than discolouration of the gum tissue. This is why location matters. A surface deposit requires a different approach from decay developing between two teeth.

What If My Gum is Black?

A gum is black or dark because of several possible reasons. Natural pigmentation can make healthy gum tissue appear brown or dark, while other colour changes may need assessment. A black spot on the gum, including a black spot in my gums or a small black spot on the gum, should not automatically be assumed to be a surface stain. The same applies when the gum around a tooth is black or there is a black spot on the gum near a tooth. For a detailed explanation of gum discolouration, see what does it mean when gums are black? Do not attempt to scrape or whiten an unexplained dark area on the gums yourself.

What if the Tooth is Black at the Gum Line?

A tooth that is black at the gum line is different from naturally dark gum tissue. The dark area may be a surface stain, a hardened deposit or tooth decay. A recognised form of black staining can also appear as a line of dark dots close to the gingival margin.

What About Black Triangle Teeth Fix Cost?

Black triangles between teeth are different from black staining. They usually describe dark spaces that become visible between teeth near the gum line. The appropriate treatment depends on why the spaces have developed. Possible approaches can vary considerably depending on gum health, tooth position and the amount of space present. Because the treatment options differ, the black triangle teeth fix cost also varies. A dental assessment is needed before an accurate treatment recommendation or cost can be provided.

When Should You Seek Dental Advice?

Arrange a dental examination if a dark area is new, changing or accompanied by symptoms such as:

  • Toothache
  • Sensitivity to hot, cold or sweet foods
  • Pain when biting
  • Swelling
  • A visible cavity
  • A broken tooth
  • A loose restoration

Seek prompt dental advice if symptoms are worsening. Tooth decay can progress and may eventually affect the pulp or lead to infection.

The Right Fix Depends on the Cause

The central point about black teeth treatment is simple: the same dark colour can represent completely different dental problems. A removable stain may need professional cleaning. A cavity may require restoration. A tooth that has darkened internally may need treatment inside the tooth before its appearance can be addressed. Dark gums and dark marks near the gum line require their own assessment. The most effective treatment begins by identifying what the black area actually is. Once the cause is clear, your dentist can recommend the appropriate way to restore the tooth’s health, function and appearance.