Humans are born with gums that do not have teeth yet. The first set of teeth to appear is called baby teeth and usually appears around 6 months of age. The second set of teeth, or permanent teeth, will start to replace the baby teeth around 6 years of age onwards.
How many teeth do we have?
Humans are born with gums but no teeth yet. The first set of teeth are called baby teeth and usually appear around the age of 6 months. The second set of teeth, or permanent teeth, usually replace the baby teeth around the age of 6. Teeth are an important part of the facial structure and play a role in digestion and speech development. Although teeth look like bones, เล่น UFABET ผ่านมือถือ สะดวกทุกที่ ทุกเวลา they are different from bone.
Humans have symmetrical types, numbers and arrangements of both sets of teeth on the left and right sides of the upper and lower sides of the mouth, acting as mirror images of each other on each side.
milk tooth
A child’s first tooth may appear as early as 3 months of age, but generally, a child’s baby teeth will appear between 4 and 7 months of age. Normally, a new baby tooth will appear every 6 months, and it takes about 2-3 years for a child’s baby teeth to all appear. The total number of baby teeth, or baby teeth, is 20, divided into 10 upper teeth and 10 lower teeth.
Type, number and arrangement of primary teeth
- The incisors (total of 8 teeth) are the 4 teeth at the front of the upper and lower jaws that help with cutting and chewing food.
- The canine teeth (total of 4) are pointed teeth located next to the incisors and are used for tearing food.
- Primary molars (8 teeth) are the teeth at the back of the mouth. They have broad, smooth surfaces used for grinding food.
Baby teeth are an important foundation for the jawbone and facial structure development, and are also involved in chewing and speaking. However, baby teeth are only temporary and are gradually replaced by stronger teeth as the child grows.
If baby teeth decay, it can affect the permanent teeth, so it is important to clean baby teeth regularly to keep them clean and strong.
How to care for baby teeth
- Start cleaning your child’s teeth regularly from the time their first tooth emerges.
- Wipe each tooth and the child’s gums with a clean washcloth soaked in warm water.
- Have your child lick a towel to help relieve sore gums as they teeth.
- When several baby front teeth have come in, switch to a toothbrush. It is recommended to use a toothbrush with a small head so that each tooth can be cleaned thoroughly.
Adult teeth (permanent teeth)
Baby teeth start to fall out around 5-6 years old. There are 32 permanent teeth in total, and they will all come in by the late teens, but may not be until the early 20s. Permanent teeth are arranged symmetrically in both the upper and lower jaws. Each type is in the position that is most suitable for use.
Real teeth are divided into 4 groups.
- The incisors (total of 8 teeth) are the 4 permanent teeth in the middle of both the upper and lower teeth. They help cut food during chewing and help with the sensation of food texture and type.
- Canine teeth (total of 4) Canine teeth are more pointed than the other teeth. They are located next to the upper and lower incisors, with one on the left and one on the right. They help tear up food such as meat, etc.
- Premolars (8 in total) These permanent teeth are located between the canines and molars, and there are two on each side. They look similar to molars, except that they have two cusps, as opposed to four or five molars. Premolars help tear and cut food.
- Molars (12 teeth total) The molars are located at the very back and are responsible for grinding up food before it is swallowed, making it easier for the body to digest. Most adults have three molars on each side, including one wisdom tooth on each side. They are the last teeth to emerge.
It is rare for all 32 permanent teeth to be in a normal row. If the teeth are overlapping, or what is called crowding, it can cause the following negative effects:
- Misaligned teeth
- There is a higher risk of tooth decay.
- I have wisdom teeth.
- There is a risk of periodontal disease (Gingivitis )
Therefore, some of us choose to have our wisdom teeth extracted because we believe it will reduce the chances of developing more crowded teeth.