Insufficient calcium intake and frequent sweet food are very likely to cause tooth decay. Therefore, to prevent tooth decay in babies, we must have a balanced diet and strictly control the intake of sugar, and also take good care of our teeth. A balanced diet and more milk A balanced diet, enough calcium and enough vitamin D are necessary to ensure strong teeth and healthy gums and oral tissues. Therefore, to prevent tooth decay in babies, it is necessary to ensure sufficient calcium intake. It is recommended that children should drink more milk and eat more dairy products, and at least 3-4 servings of dairy foods should be consumed every day. It is well known that sugar is the main culprit of tooth decay. All sugars promote the growth of oral bacteria and acid production, thus causing tooth decay, even unrefined sugars such as honey, maple sugar, syrup, etc. have the same destructive power to teeth as refined white sugar. There are some sugary foods that can easily stick to teeth, such as fudge and dried fruit, etc. Once these foods stick to teeth and are not cleaned in time, it will accelerate the progress of tooth decay. In addition, various sweetened drinks such as soft drinks, fruit juices and milk drinks also contain a lot of sugar, and the residues of cereals and other starchy foods will also be rapidly converted into sugar under the action of bacteria. Therefore, in order to prevent tooth decay, we must give our children less sugar and foods with high sugar content, drink less sweetened drinks, and let them rinse their mouths in time after meals to prevent food residues on their teeth. Third, proper supplementation of fluoride Most of the toothpastes we use everyday contain fluoride, which is because fluoride can reduce the loss of tooth enamel to prevent tooth decay and also can promote teeth. Enamel resistance to bacterial acidic decay and replace the minerals that have been lost. If you live in an area where natural water is low in fluoride, or tap water does not contain fluoride, or if your family uses bottled or reverse osmosis filtered water, then it is recommended that your child be given appropriate fluoride supplements, such as fluoride toothpaste, or a fluoride treatment to enhance the enamel’s resistance to decay. However, it is important to note that excess fluoride can cause fluorosis, and the most common symptom of fluorosis is dental fluorosis. The most common symptom of fluorosis is dental fluorosis. Initially, dental fluorosis is characterized by a loss of normal luster and opaque plaque on the tooth surface, which gradually deteriorates to brownish plaque. A common cause of fluorosis is taking fluoride supplements when the drinking water is fluoridated, and children are also prone to fluorosis when they swallow fluoridated toothpaste. To avoid this problem, it is best for younger children not to use fluoride toothpaste, and even if your child’s dentist recommends using fluoride toothpaste, it is important to strictly control the amount used, usually only a light application on the toothbrush until the child is two years old, and only a pea-sized amount for children over two. If you are not sure how to give your child fluoride supplements, it is best to consult your doctor.