Brown Spots on Teeth: Causes, Treatment, and How to Remove Them Naturally
In this complete guide, you’ll learn exactly what causes brown spots on teeth, how to remove them naturally, when professional treatment is needed, and how to prevent them from coming back. This article is part of our comprehensive whitening hub and connects directly with our main guide on How to Whiten Your Teeth.
What Are Brown Spots on Teeth?
Brown spots on teeth are discolorations that appear as light brown, dark brown, or even blackish marks on the surface of the teeth. They can affect a single tooth or multiple teeth and may appear near the gums, on the back teeth, or across the entire smile.
These spots are often caused by external stains that stick to tooth enamel, but in some cases, they may be related to internal changes within the tooth structure.
Brown spots are different from:
- Yellow teeth: Usually caused by thinning enamel or aging
- White spots: Often linked to enamel demineralization
- Black spots: May indicate advanced staining or decay
Understanding what type of discoloration you’re dealing with is the first step toward effective treatment.
What Causes Brown Spots on Teeth?
There isn’t a single cause behind brown spots on teeth. In most cases, multiple factors work together to create visible staining.
Poor Oral Hygiene
Inadequate brushing and flossing allow plaque to build up on teeth. Over time, plaque hardens into tartar, which easily traps stains and turns brown or dark yellow.
Coffee, Tea, and Dark Beverages
Coffee, tea, red wine, and soda contain chromogens—pigments that cling to enamel. Frequent consumption without proper cleaning leads to stubborn brown stains.
Smoking and Tobacco Use
Tobacco products contain tar and nicotine, which deeply stain teeth. Smokers are significantly more likely to develop brown spots, especially near the gum line.
Plaque and Tartar Buildup
When plaque is not removed regularly, it calcifies into tartar. Tartar is porous and easily absorbs pigments, leading to dark brown spots.
Aging and Enamel Wear
As you age, enamel naturally wears down, exposing the darker dentin beneath. This can make stains appear more noticeable and harder to remove.
Certain Medications
Some antibiotics and medications taken during childhood can affect enamel development, leading to discoloration later in life.
Excessive Fluoride (Fluorosis)
Too much fluoride during enamel formation can cause brown or white spotting, known as dental fluorosis.
Brown Spots on Teeth Near the Gums
Brown spots near the gum line are particularly common and often linked to plaque accumulation and early gum disease.
This area is harder to clean properly, making it a prime location for tartar buildup. In some cases, brown spots near the gums may signal gingivitis or periodontal issues.
If these spots are accompanied by bleeding, swelling, or bad breath, professional dental evaluation is strongly recommended.
Brown Spots on Back Teeth
Back teeth (molars) are more prone to brown spots because they are harder to reach while brushing and flossing. Food particles and bacteria easily accumulate in these areas.
Brown spots on back teeth may also be related to:
- Deep grooves and pits
- Long-term plaque retention
- Reduced saliva flow
Although less visible, stains on back teeth can still affect oral health and should not be ignored.
How to Remove Brown Spots on Teeth Naturally
Many people prefer to start with natural methods before seeking professional treatments. While natural remedies work best on surface stains, they can significantly improve tooth appearance when used correctly.
Proper Brushing Technique
Brushing twice a day with fluoride toothpaste and a soft-bristled toothbrush helps remove surface stains before they harden.
Baking Soda (Used Safely)
Baking soda has mild abrasive properties that can help lift surface stains. Use it sparingly—no more than once or twice per week—to avoid enamel damage.
Oil Pulling
Swishing coconut oil for 10–15 minutes may help reduce bacteria and plaque buildup, contributing to a cleaner tooth surface.
Crunchy Fruits and Vegetables
Apples, carrots, and celery act as natural scrubbers, increasing saliva flow and helping clean the teeth.
Avoiding Staining Foods
Reducing coffee, tea, and sugary drinks helps prevent further discoloration.
Rinsing After Meals
Rinsing your mouth with water after eating minimizes stain buildup and acid exposure.
Natural Remedies You Should Avoid
Not all natural methods are safe. Some popular DIY remedies can permanently damage enamel.
- Lemon juice and vinegar (highly acidic)
- Activated charcoal overuse
- DIY hydrogen peroxide mixtures
Damaged enamel makes stains worse over time and increases tooth sensitivity.
Professional Treatments for Brown Spots on Teeth
If natural methods fail, professional dental treatments may be necessary.
- Professional dental cleaning
- Whitening strips and trays
- In-office whitening treatments
Professional treatments offer faster and more noticeable results, especially for deep or long-standing stains.
You can learn more about whitening options in our main guide: How to Whiten Your Teeth
How Long Does It Take to Remove Brown Spots?
The time required depends on the cause and severity of the stains. Surface stains may improve within weeks, while deeper discoloration may require professional care.
Consistency and proper oral hygiene play a major role in long-term success.
How to Prevent Brown Spots on Teeth
- Brush and floss daily
- Limit staining foods and drinks
- Quit smoking
- Visit your dentist regularly
Are Brown Spots on Teeth Permanent?
Some brown spots are temporary and easily removed, while others may be permanent if enamel damage has occurred. Early intervention greatly improves outcomes.
Brown Spots vs Cavities: How to Tell the Difference
Brown spots are usually painless and smooth, while cavities may cause pain, sensitivity, and rough texture. When in doubt, consult a dentist.
When Should You See a Dentist?
You should see a dentist if brown spots persist, worsen, or are accompanied by pain, bleeding, or bad breath.
Final Thoughts
Brown spots on teeth are common, but they don’t have to be permanent. With the right approach—natural care, proper hygiene, and professional treatment when needed—you can restore a healthier, brighter smile.
For a complete overview of all whitening options, visit our main guide: How to Whiten Your Teeth