The hardest part of the human body is

In the human body, there are different tissues and components. Different parts have different functions and different degrees of hardness. The hardest part of the human body is the teeth. Teeth are made up of hard minerals such as calcium and magnesium. Under normal circumstances, teeth can withstand a weight of 35 to 45 kilograms. Below, we will give you a detailed introduction to the weight-bearing, functions and health care methods of teeth.

1. What is the hardest part of the human body?

Teeth are the hardest structure in the human body. Many people believe that bones are the hardest structure in the human body, but this is not the case. Teeth deserve this honor because they contain calcium, phosphorus, magnesium and other mineral salts, and can generally withstand a force of 30-45 kilograms. Teeth are important devices for mechanical processing of food, and they also assist in pronunciation and maintain facial appearance.

2. Teeth Function

In a person's life, teeth grow twice. The first teeth that grow are called "deciduous teeth", and all of them grow out by the age of two, totaling twenty teeth. Around the age of six, the deciduous teeth gradually fall out and the permanent teeth grow out, a total of thirty-two. According to their morphology, they can be divided into incisors, canines and molars. The function of the incisors is to cut food, the bicuspids are used to mash food, and the molars are used to grind food.

Teeth not only help chew food and pronounce, but also have a great impact on the beauty of the face. Due to the support of teeth and alveolar bones, normal dental arch shape and occlusion, a person's face and lips and cheeks appear plump. When people talk and smile, neat and white teeth can better show their health and beauty. On the contrary, if the dental arch develops abnormally and the teeth are arranged disorderly and unevenly, the face will appear unharmonious. If too many teeth are missing, the lips and cheeks will lose support and become sunken, making the person's face look old and thin. Therefore, people often regard teeth as one of the important indicators of bodybuilding.

3. Dental care

If you want to have a set of healthy teeth, you must pay attention to dental care and eat more calcium-rich foods. Especially in infancy and childhood, we should pay attention to dietary choices. Parents should let their children eat more vegetables that can promote chewing, such as celery, cabbage, spinach, leek, kelp, etc., which is beneficial to promote the development of the mandible and the alignment of teeth. Eating vegetables regularly can also increase the molybdenum content in teeth, enhancing the hardness and firmness of teeth.

Experiments have shown that young children who are averse to eating vegetables and meat have lower bone density than those who eat vegetables and meat. Eating vegetables regularly can also prevent tooth decay because vegetables contain 90% water and some fiber. When chewing vegetables, the moisture in the vegetables can dilute the sugar in the mouth, making it difficult for bacteria to grow; the cellulose can sweep and clean the teeth. In addition, eating more harder foods is good for the health of teeth, such as corn, sorghum, beef, dog meat and some nuts, such as acorns, melon seeds, walnuts, hazelnuts, etc.