Normally, teeth do not grow back after adulthood, so we need to protect our teeth and maintain their health regularly. After all, they are with us for a lifetime.

1. Broken teeth will never grow back, so you need to go to the dental department for examination in time. First take a look at the root of the tooth using a dental radiograph. If the root canal can be completely preserved, root canal treatment will be performed first, and then the coronary stent will be driven. If the root canal is not broken, there is no need to remove it. This therapy takes about half a month, mainly three or four sessions. Porcelain teeth are the same color as real teeth and are very realistic. Porcelain teeth are a permanent restoration. You cannot eat food that is too hard or sticky in life.

2. Dentin is the main substance of teeth, covering the crown part and cementum root part. There is a layer of periodontal ligament made of fibers outside the tooth bone that holds the tooth in the socket. There is a pulp cavity in the center of the tooth, which is filled with pulp and rich in blood vessels and nerves. For adults, lost teeth cannot be regenerated. Permanent teeth contain deciduous teeth and permanent teeth. If the deciduous teeth are replaced, the teeth generally cannot regenerate. Therefore, if a tooth falls out, it is best to go to the hospital for appropriate examination and treatment. If the tooth root can still be preserved, thorough root canal treatment can be performed.

3. The replaced deciduous teeth cannot regenerate even if they are lost, so you must take better care of your teeth. If a tooth is found to have fallen out, it should be treated promptly to avoid affecting the health of other teeth. In order to protect your teeth, you must avoid eating some irritating foods, such as overly sour and sweet foods.

4. A person will grow teeth twice in his life. The first ones to erupt are called deciduous teeth, with 5 on the left and right, 5 on the top and bottom, and 20 on the left and right, which develop from 6 months after birth to about 3 years old. Baby teeth begin to fall out between the ages of 6 and 7 years. The permanent teeth that erupt in the second stage are 8 on the upper and lower jaw surfaces and 32 in total. The first molars erupt between the ages of 6 and 7, and replacement of the baby teeth begins. All deciduous teeth are replaced between the ages of 13 and 14 years old. But third molars don't start growing until you're about 20 years old.