What to do about black stains between teeth? 5 common causes

The condition of “black stains between teeth” not only affects aesthetics but also signals potential oral health problems. So, what causes black stains between teeth? How can you improve and prevent this condition? Let’s explore in the article below.


Causes of Black Stains Between Teeth

  1. Plaque Buildup: Food debris and bacteria accumulate over time on teeth, forming a layer called plaque. Plaque is the main culprit leading to many oral problems, including black stains between teeth.
  2. Tartar Between Teeth: When plaque is not removed in time, it hardens into tartar. Tartar adheres tightly to the tooth surface and between teeth, making it very difficult to remove with regular oral hygiene.
  3. Tooth Decay: Bacteria from plaque produce acids that erode tooth enamel, creating cavities that initially appear white and then turn brown or black. Tooth decay often develops in hidden crevices between teeth.

rang-bi-den-o-ke-1 black-stains-between-teeth-1

Tooth decay often develops in hidden crevices between teeth

  1. Poor Oral Hygiene: Regular brushing alone cannot completely clean between teeth, allowing plaque and tartar to accumulate.
  2. Dietary Habits: Dark-colored beverages like coffee, tea, and soft drinks can stain teeth and increase enamel discoloration, including in between teeth.
  3. Long-term Smoking – cause of black stains between teeth: Tobacco tar causes yellowish, discolored plaque on teeth, worsening over time.


Tobacco tar causes yellowish, discolored plaque on teeth, worsening over time

How to Treat Black Stains Between Teeth

To determine the appropriate treatment for “black stains between teeth” you need to visit a dentist for an examination and consultation. Some common treatment methods include:

  1. Regular Dental Check-ups: Early detection of dental issues allows for proper care and intervention.
  2. Scaling: Removing hardened tartar from teeth helps improve the color of the area between teeth and prevents infections.
  3. Filling Cavities: If black stains are due to cavities, fillings can restore the tooth’s shape and prevent decay from progressing.
  4. Teeth Whitening: This cosmetic procedure can improve tooth discoloration, restoring a bright smile.
  5. Other Treatments: In some cases, black stains between teeth may result from gum disease or periodontal issues. The dentist will treat these underlying conditions before addressing the black stains.

Preventing Black Stains Between Teeth

Prevention is better than cure! Proper oral care can effectively prevent “black stains between teeth“:

  1. Proper Oral Hygiene:
    • Brush at least twice a day with fluoride toothpaste.
    • Use dental floss daily to clean between teeth.
    • Rinse with saline or a suitable mouthwash.
  2. Limit Dark-colored, Sugary Drinks: Avoid beverages like tea, coffee, and soft drinks.


Avoid beverages like tea, coffee, and soft drinks

  1. Do Not Smoke.
  2. Regular Dental Check-ups: Visit your dentist every six months for a comprehensive check-up and early treatment of any oral issues.


Frequently Asked Questions About Black Stains Between Teeth

  1. Can black stains between teeth go away on their own? No, especially if caused by tartar or cavities. Regular oral hygiene cannot completely remove tartar or prevent cavities from spreading. Professional dental treatment is necessary.
  2. Does scaling remove black stains between teeth? Scaling removes stubborn tartar and can reduce black stains if tartar buildup is the main cause. However, if the stains are due to cavities or other causes, scaling alone may not suffice.
  3. Can children have black stains between teeth? Yes, children can develop black stains between teeth due to poor oral hygiene, high sugar intake, and not using dental floss.
  4. Are there home remedies to whiten black-stained teeth? Natural methods like using salt and lemon or coconut oil can help, but their effectiveness is limited. For black stains, professional teeth whitening at a dental clinic is recommended.
  5. Are black stains between teeth dangerous? Besides aesthetic concerns, black stains can indicate serious health risks like:
    • Tooth Decay: Black cavities can destroy tooth structure, weakening teeth.
    • Pulpitis, Tooth Abscess: Severe decay can affect the tooth pulp, causing intense pain and infection.
    • Periodontal Diseases: Long-term plaque and tartar buildup can lead to gum and periodontal diseases.


Scientific Evidence on Black Stains Between Teeth

  1. Plaque and Tartar:
    • Study: “The role of plaque in the etiology of dental caries and periodontal diseases” (2022).
  2. Tooth Decay:
    • Study: “Dental caries: a preventable disease” (2020).
  3. Oral Hygiene:
    • Study: “The effect of oral hygiene on the prevention of dental caries and periodontal diseases” (2018).

While black stains between teeth are not a severe issue, they impact aesthetics and can indicate underlying health risks. Understanding the causes and maintaining proper oral hygiene is key to addressing and preventing this condition, ensuring strong, bright teeth.




Kiểm Duyệt Nội Dung

Ban Biên Tập | Website

More than 10 years of marketing communications experience in the medical and health field.

Successfully deployed marketing communication activities, content development and social networking channels for hospital partners, clinics, doctors and medical professionals across the country.

More than 6 years of experience in organizing and producing leading prestigious medical programs in Vietnam, in collaboration with Ho Chi Minh City Television (HTV). Typical programs include Nhật Ký Blouse Trắng, Bác Sĩ Nói Gì, Alo Bác Sĩ Nghe, Nhật Ký Hạnh Phúc, Vui Khỏe Cùng Con, Bác Sỹ Mẹ, v.v.

Comprehensive cooperation with hundreds of hospitals and clinics, thousands of doctors and medical experts to join hands in building a medical content and service platform on the Doctor Network application.

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