Why do teeth become yellower?

White teeth often leave a deep impression on people, but some people have yellow teeth, even if they brush their teeth frequently. The yellowing of teeth is not just a problem of cleaning, but the result of the combined action of multiple factors. Identifying the main cause will help us better solve it. So, why do teeth become yellower? Let’s take a closer look at the reasons.

1. Internal reasons

Some people's teeth will form endogenous yellow teeth due to the influence of certain primary colors. This yellow tooth is not caused by surface pigmentation, but inside the teeth. Therefore, even if whitening is done, the teeth will turn yellow again after a period of time.

2. External causes

Most of the yellowing of teeth is caused by external factors, which involve a wide range of aspects and can be divided into the following categories:

1. Calcium deficiency

Malnutrition caused by calcium deficiency in teeth allows bacteria to invade the teeth, thus forming yellow teeth.

2. Toothbrush

There is a protective film on the outside of the teeth. Many people have lost this film because they use a hard toothbrush to brush their teeth, which gradually leaves food residues on the teeth and causes them to turn yellow.

3. Dietary issues

Frequent consumption of dark-colored foods, such as cola and coffee, can discolor teeth. Especially try not to drink cola, as carbonated drinks can corrode teeth and turn them yellow and black.

If you drink mineral water frequently, it will also increase tooth enamel and cause yellowing of teeth, because mineral water contains too much fluoride. It is better to drink more boiled water in the future!

4. Water quality issues

The water quality in some areas is relatively hard. This type of water is weakly alkaline. Drinking it for a long time will not only make your skin dry, but using it to wash clothes will also cause the color to darken. Therefore, brushing your teeth with it will also make your teeth turn yellow.

1. Drink beverages with a straw.

2. Choose the right toothpaste.

3. For nutritional supplements, swallow the vitamin C tablets directly and do not hold them in your mouth for a long time.

4. Rinse your mouth after meals to reduce corrosion and make your breath fresher and more pleasant.

5. Eat foods that can whiten teeth after drinking red wine or coffee, such as apples, which are slightly sour and astringent. Because of the fiber-rich pulp, they have the effect of cleaning teeth.