February 28, 2023


A perfect, bright smile is a desire of many people. It’s common for people to experience some discoloration in their teeth as they age or due to lifestyle habits. There are different types of dental discoloration that can occur due to various reasons.

In this blog post, we’ll be discussing the ten different shades of discolored teeth and their causes. You will learn about the different types of discolored teeth and the reasons behind them. You will also learn how to maintain good dental hygiene to prevent discoloration of teeth.

Types of Discolored Teeth:

1. Yellow Teeth:

Yellow teeth are the most common type of discoloration that occurs in people. It’s caused by a thinning of the enamel layer, which exposes the naturally darker dentin layer underneath. Yellow teeth can also occur due to smoking, drinking coffee, tea, or red wine, or genetics.

2. Brown Teeth:

Brown teeth occur due to excessive consumption of tobacco, tea, coffee, or cola drinks. This can cause teeth to become stained and appear brownish.

3. Grey Teeth:

Grey teeth can occur due to the intake of certain medications such as antibiotics or antipsychotic drugs. Excessive fluoride consumption can also cause greyish discoloration of teeth.

4. Orange Teeth:

Orange teeth are often caused by excessive intake of beta-carotene, found in foods like sweet potatoes and carrots. Additionally, drinking beverages like orange juice can cause orange discoloration of teeth.

5. White Spots:

White spots occur due to demineralization of enamel. They can also occur due to excessive intake of fluoride. White spots can appear more noticeable on previously yellow teeth.

6. Blue-Grey Teeth:

Blue-grey teeth occur due to excessive intake of tetracycline antibiotics. Tetracycline antibiotics are commonly used to treat bacterial infections, but it can cause blue-grey tooth discoloration.

7. Red Teeth:

Red teeth occur due to the deposition of metallic elements such as copper, iron, or mercury in the teeth. This can occur due to exposure to industrial chemicals, excessive intake of iron supplements or copper.

8. Black Teeth:

Black teeth occur when decay is left untreated and the tooth’s pulp begins to die. The tooth changes color from yellow to brown to black due to the decomposition of nerve and blood vessels.

9. Green Teeth:

Green teeth are most commonly caused by bacterial infections. When bacteria causes a buildup of pus, it can cause greenish discoloration of the teeth.

10. Purple Teeth:

Purple teeth occur due to the improper development of teeth. This is commonly found in children who have weakened enamel due to a lack of proper nutrition or vitamin deficiencies.

Causes of Discolored Teeth:

1. Excessive Intake of Coffee, Tea, and Wine:

Drinking coffee, tea, and wine excessively can cause yellowing of teeth. These beverages contain high levels of chromogens that can cause staining on teeth.

2. Tobacco Use:

Tobacco use is one of the most significant causes of tooth discoloration. The tar and nicotine in tobacco cause deep yellow or brown stains on teeth.

3. Poor Dental Hygiene:

Skipping brushing and flossing your teeth regularly can lead to the buildup of plaque and tartar, which can cause teeth to become discolored.

4. Aging:

As we age, the enamel layer of the tooth becomes thinner, revealing the naturally darker layer underneath. This can cause teeth to look yellowish.

5. Certain Medications:

Certain medications such as antibiotics, antihistamines, and chemotherapy drugs can cause teeth to become discolored.

6. Genetics:

Some people might have naturally darker teeth due to genetic factors.

Preventing Discoloration of Teeth:

1. Brush and Floss Regularly:

Brushing and flossing your teeth regularly can remove plaque and tartar buildup, which can cause discoloration.

2. Reduce Intake of Staining Foods:

Reducing your intake of foods and beverages that can cause teeth discoloration, such as coffee, tea, wine, and tobacco can prevent tooth discoloration.

3. Use Whitening Products:

Using whitening products like toothpaste, mouthwash, and whitening strips can remove surface stains and whiten your teeth.

4. Regular Dental Cleanings:

Routine dental cleanings can remove stubborn plaque and tartar buildup. Furthermore, regular exams can detect problems sooner and prevent tooth discoloration.


Q1. Can natural remedies whiten teeth?

Yes, natural remedies like baking soda, hydrogen peroxide, and activated charcoal can be used to remove stains from teeth. However, it’s essential to use caution when using these products, as using them excessively can damage your teeth.

Q2. Can I whiten my teeth at home?

Yes, you can whiten your teeth at home using whitening strips, gels, and trays. However, it’s important to follow the instructions carefully and use caution, as excessive use can cause tooth sensitivity.

Q3. Can discoloration of teeth be reversed?

Treatment options like dental bonding, veneers, and in-office whitening can help reverse discoloration of teeth. However, it’s important to maintain good dental hygiene to prevent further discoloration.

Q4. Are all stains on teeth permanent?

No, not all stains on teeth are permanent. Surface stains caused by coffee, tea, and tobacco can be removed through regular dental cleanings and home whitening products.

Q5. Can whitening products damage teeth?

Whitening products can damage teeth if they are used excessively or improperly. Overuse of whitening products can cause tooth sensitivity and harm enamel. It’s vital to follow the instructions carefully and consult a dentist to prevent damage to your teeth.


Discoloration of teeth is a common problem. However, it’s not always easy to determine what’s causing it. In this blog post, we discussed ten different shades of discolored teeth and their causes. Furthermore, we provided helpful tips to prevent teeth discoloration and maintain good oral hygiene. Remember to visit your dentist regularly and follow their advice for maintaining good dental health.

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