Black Spots on Kids’ Teeth: Causes, Prevention, & Treatment
Posted on March 28th, 2025 | Christopher Neal
As a parent, noticing black spots on your child’s teeth can be alarming. You may wonder, “Are black spots on teeth always cavities?” or “What could be causing the discoloration?” While cavities are a common reason for dark marks, they aren’t always to blame. This blog will explore the potential causes of black spots on teeth that aren’t cavities, how to prevent them, and when to seek professional care for your child.
What Are Black Spots On Teeth?
Tiny black spots on teeth can appear as dots, streaks, or even larger patches. They may show up on baby teeth coming in or develop later as a child grows. Some spots are harmless, while others may call for professional cavity treatment or other dental care.
Common Causes of Black Stains on Kids’ Teeth
Tooth Decay
Are black spots on teeth always cavities? Not necessarily, but cavities are a primary concern. Tooth decay can begin with white or brown discoloration and eventually turn black as the enamel breaks down.
Tartar Buildup (Dental Calculus)
Plaque that isn’t removed properly hardens into tartar, which can appear as black or brown spots, especially along the gumline and between teeth. Plaque is a sticky film that forms on teeth due to the interaction between bacteria, saliva, and food particles.
Iron Supplements
Some children taking iron supplements can develop black spots on their teeth. Liquid iron supplements are especially notorious for causing stains because they have more direct contact with the teeth.
Staining From Foods & Beverages
Dark-colored foods and drinks, such as berries, soy sauce, tea, and soda, can lead to stained tooth enamel. Over time, this may cause black spots on teeth to develop.
Injuries or Dental Trauma
Black spots on baby teeth coming in may indicate past trauma or an injury that caused the tooth’s nerve to die, resulting in discoloration. They could also be linked to blood vessel damage inside the tooth.
Tooth Enamel Defects (Enamel Hypoplasia)
Some children are born with weakened enamel, making their teeth more prone to staining and decay. Brownish or yellowish spots may be due to cavities or the exposure of underlying tooth dentin.
Celiac Disease
Celiac disease is an autoimmune condition triggered by gluten intake. It can impact tooth enamel and lead to spots and discoloration. Dark spots can vary from light brown flecks to more pronounced brown areas covering large portions of teeth.
How To Prevent Black Spots on Teeth
Preventing black spots on kids’ teeth starts with good oral hygiene and regular dental visits. Here are some key tips:
- Ensure your child brushes their teeth twice a day
- Have your child floss regularly (at least once a day)
- Limit sugary foods and drinks that cause tooth decay
- Limit foods and drinks that cause staining (e.g. cola, fruit juice, popsicles)
- Visit your pediatric dentist every 6 months
- Encourage water over juice or soda
- Choose iron supplements that come in a pill form (if your child takes iron)
If tooth staining doesn’t lessen with regular brushing and flossing, or the affected tooth or teeth are causing your child pain, book a dental appointment as soon as possible.
Treatment for Black Spots on Kids’ Teeth
If your child has black spots on their teeth, we can help determine the cause and recommend treatment. Options may include:
- Professional cleaning to remove plaque buildup
- Dental fillings if the dark spots are due to cavities
- Polishing for tooth discoloration caused by food or supplements
- Dental crowns for permanent teeth (usually front teeth) with stains that don’t respond to traditional treatment
Contact Our Dentist for Comprehensive Dental Care
If you notice black spots on your child’s teeth, especially if they are growing larger, causing discomfort, or accompanied by sensitivity, schedule an appointment at Chicago kiDDS Pediatric Dentistry. Our skilled dental team can diagnose the cause and provide the best treatment options!
