Posted on Mar 9, 2022      394

Tooth enamel is 92-96% inorganic substances. Most of the enamel is calcium - up to 39% and phosphorus - up to 19%. It is the ratio of these elements that is mainly responsible for the health of our teeth. In much smaller amounts the enamel contains fluoride, magnesium, potassium, zinc and other chemical elements, about 20 in total.

The primary sources of minerals for teeth are primarily food and water. Therefore, the lack or excess of certain elements in drinking water and the quality of water inevitably influence our smile.

What things in the quality of drinking water affect our teeth?

The fundamental things to look for when choosing safe drinks for your smile are:

  • PH level;
  • Water hardness;
  • The amount of impurities in the water, especially fluoride, iron, and chlorine.

Let’s look at each indicator in more detail.

PH level

The pH level is being the most important parameter for a beautiful smile. Dentists consider acidic beverages - those with a PH around or below 3 - to be the most harmful. These include citrus juices, karkade tea and sugary sodas. These drinks leach minerals from the tooth enamel, making it less durable. Your teeth gradually become sensitive to cold or sweets, and the enamel becomes thin and decays.

Tea or coffee, which has a PH of about 5, is not bad for your teeth. Unsweetened carbonated water is also safe, and, oddly enough, wine, whose high acidity is neutralized by polyphenols. The ideal pH value for drinking water is neutral, which is about 7.


Hardness is another important parameter to monitor if you want to keep your teeth healthy. Calcium and magnesium salts are mainly responsible for the water hardness. The higher they are, the harder we consider the water being. And while the hair and skin can suffer from such water, the teeth only benefit from an increased salt content.

But the lack of calcium and magnesium thinks enamel and weakens our protection against caries. Therefore, you can not drink distilled water or abuse filters.

Fluoride content

Fluoride is the most popular hero of toothpaste advertisements. And not for nothing. It is this element that handles the strength of our teeth. It’s a compound called fluorapatite that gives teeth a resistance similar to that of diamond.

But it’s impossible to provide your teeth with enough of this element with fluoridated toothpaste. Of the 2 mg of fluoride a person needs per day, 70% comes into the body with drinking water.

If there is too little fluoride, your enamel thins, and your teeth lose their cavity protection. If there is too much fluoride, brown plaque and stains appear on the teeth. In severe cases, fluorosis can lead to teeth that can cause tooth decay.

The iron content

High iron content in water can be determined without special equipment: water has a reddish hue and a characteristic metallic taste. Long consumption of such water gives a yellow plaque on the tooth enamel. In addition, iron accumulates in the liver and kidneys, causing them to malfunction.

WHO sets strict standards for the content of this chemical element in drinking water: it must not exceed 0.3 mg. I must not drink water with a concentration of iron above this level.

Chlorine content

You might be surprised, but caries is an occupational disease of swimmers. If you spend over six hours a week in a pool with chlorinated water, watch your teeth more carefully. After exposure to chlorine, the proteins in human saliva clot, and over time, unpleasant deposits form on your teeth.

Also, chlorine weakens the protective properties of fluoride, making teeth less strong. In addition, chlorine interacts with water to form a weak acid, which, as we have already said, destroys enamel.

To keep your teeth healthy, avoid distilled or overly soft water. Try to limit very sour drinks and sugary sodas. Clean water with normal or high calcium and magnesium salts is the best choice.