Teeth are the strongest part of the human body. Every day, we come into contact with a wide variety of foods. As times change, more and more women are becoming conscious about the color of their teeth. But have you ever wondered why your teeth turn yellow? Are you guilty of any of these seven bad habits that cause tooth discoloration?

**Bad Habit 1: Using Medicinal Toothpaste**
While medicinal toothpastes can help control harmful bacteria, they can also disrupt the natural balance in your mouth, leading to new infections. More importantly, the alkaloids found in these toothpastes can damage the enamel on your teeth, causing them to look dull and discolored.
**Bad Habit 2: Over-Washing Your Teeth**
According to the World Health Organization, most people only need a professional cleaning once a year. If you smoke regularly, two or three cleanings per year might be necessary. However, excessive cleaning can make your teeth more sensitive and allow food particles and stains to stick more easily to your teeth.
**Bad Habit 3: Eating Curry**
Curry, especially those with turmeric, is known for its strong staining effect on teeth. The American Dental Association has ranked turmeric as one of the top causes of tooth discoloration. Once stained, the discoloration is often hard to reverse. If you enjoy spicy food, consider choosing green curry instead of red or yellow curry to reduce the risk of staining.
**Bad Habit 4: Drinking Mineral Water**
Mineral water contains high levels of fluoride, which strengthens tooth enamel but can also lead to yellowing over time. Experts recommend limiting your intake of mineral water to no more than 300 ml per day, and drinking the rest as purified or boiled tap water to maintain white, healthy teeth.
**Bad Habit 5: Using a Hard-Bristled Toothbrush**
Although hard-bristled toothbrushes clean more effectively, they can wear down your tooth enamel over time, leading to discoloration. It’s best to use a soft-bristled brush daily and reserve a hard-bristled one for deep cleaning every few days. Avoid using it during your menstrual cycle when your enamel is more vulnerable.
**Bad Habit 6: Drinking Black Tea**
Black tea is rich in polyphenolic oxides, which can stain your teeth over time. While some teas like Pu'er or barley tea contain fewer of these compounds, black tea and dark-colored teas are more likely to cause yellowing. To minimize staining, try brewing your tea for shorter periods or opt for lighter-colored beverages.
**Bad Habit 7: Drinking Cola**
Cola contains sugar and carbon dioxide, both of which can contribute to tooth decay and discoloration. Drinking a liter of cola daily can erode your tooth enamel within just two years. Dark colas are the worst for your teeth, followed by orange soda. For healthier options, choose clear drinks like Sprite.
If you're looking for natural ways to whiten your teeth, there are several home remedies you can try. One popular method involves using salt to gently scrub your teeth and remove surface stains. Just remember to be gentle and avoid overuse, as it can also harm your enamel.
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