Brown or Black Spots on Teeth: Causes, Treatment and Prevention

Why Do I Have Black or Brown Spots on My Teeth?

Noticing brown or black spots on your teeth can be unsettling—but it’s actually very common. Tooth discoloration can show up as dots, streaks, or blotches, and the causes range from harmless surface stains to serious issues like cavities. While some spots are purely cosmetic, others may be an early warning sign of tooth decay, gum disease, or enamel damage.

At Dental Depot, we’re here to help you understand what’s behind those spots, how to treat them, and most importantly, how to prevent them from coming back.

Image of a young woman hiding her teeth for the dark spots on teeth blog post.

Common Causes of Brown or Black Spots on Teeth

Surface Stains (Extrinsic Stains)

The most common cause of tooth spots is staining from dark foods and drinks like coffee, tea, soda, red wine, and berries. Tobacco use is another major culprit. These stains affect only the outer layer of enamel and can usually be treated with professional whitening, bonding, or veneers.

Internal Tooth Discoloration (Intrinsic Stains)

Intrinsic stains develop inside the tooth and are harder to treat. Common causes include:

  • Trauma or injury to a tooth
  • Certain medications (like tetracycline antibiotics)
  • Excessive fluoride during childhood (fluorosis)
  • Root canal infections or cracks inside a tooth

 

Treatment for intrinsic stains may involve crowns, veneers, bonding, or root canal therapy, depending on the severity.

Cavities and Tooth Decay

Spots caused by tooth decay often start small but darken over time as enamel weakens and dentin is exposed. Unlike simple stains, these require restorative dental treatment such as fillings, inlays, onlays, or root canals.

Tartar Buildup

When plaque hardens into tartar, it can leave yellow, brown, or even black deposits along the gumline. Tartar cannot be removed at home—a professional dental cleaning is necessary.

Fluorosis

In children, consuming too much fluoride while teeth are developing can lead to fluorosis, which appears as white streaks, pits, or brown discoloration, especially on back molars.

Celiac Disease

Some individuals with celiac disease experience weak or underdeveloped enamel, which can cause teeth to appear translucent or develop white, yellow, or brown spots.

Natural Aging

As we age, enamel thins and the yellow dentin beneath becomes more visible, causing dark spots or overall tooth discoloration.

Can Brown or Black Spots Be Removed?

Yes—but the right treatment depends on the cause.

  • Surface stains: Often removable with professional teeth whitening or cosmetic treatments like veneers and bonding.
  • Deep stains: May require more advanced cosmetic or restorative solutions, such as crowns or veneers.
  • Decay-related spots: These require restorative treatments like fillings, crowns, or root canals to repair the tooth.
  • Tartar buildup: Must be removed with a professional dental cleaning.

 

The first step is always a dental exam, so your dentist can identify what’s causing the discoloration and recommend the best treatment.

How to Prevent Black or Brown Spots on Teeth

The best way to keep your smile bright and spot-free is through consistent care:

  • Brush at least twice a day with fluoride toothpaste
  • Floss daily to remove plaque between teeth
  • Rinse or brush after eating dark or acidic foods
  • Limit tobacco and nicotine use
  • Reduce coffee, tea, soda, and red wine intake
  • Visit your dentist every 6 months for professional cleanings and exams

 

Preventive care not only protects against stains but also helps catch cavities and gum disease before they become serious.

Dental Care at Dental Depot

At Dental Depot, we provide comprehensive care to treat both the cosmetic and medical causes of tooth discoloration. Whether you need:

  • Professional teeth whitening to brighten your smile
  • Fillings or root canals to stop decay
  • Veneers or crowns to restore appearance and function
  • Preventive care to keep your teeth healthy long-term

 

With multiple locations across Oklahoma, flexible scheduling, and Saturday appointments, we make it simple to get the dental care you need. Our staff includes experienced general dentists, hygienists, orthodontists, and specialists, all working together under one roof.

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