Humans have two sets of teeth in their lifetime: primary teeth (also known as baby teeth) and permanent teeth. Primary teeth begin to appear at around age 6-8 months and are all in place by age 3. Permanent teeth begin to grow around age 6 and are all present, except for the wisdom teeth, by age 12-14. Wisdom teeth are the last teeth to erupt, and they typically do so between the ages of 17 and 25.
Primary teeth are smaller and less durable than permanent teeth, and they eventually fall out to be replaced by permanent teeth. This process, called teething, usually begins around age 6 and is completed by age 12.
Wisdom teeth are often removed because they can cause overcrowding, pain, and infection. They can also damage other teeth if they erupt in a way that pushes against them.
The front teeth are called incisors. They are used for biting and cutting food. The sharp, pointed teeth next to the incisors are called canines. They are used for tearing food. The teeth behind the canines are called premolars or bicuspids. They are used for chewing and grinding food. The teeth at the back of the mouth are called molars. They are the largest and strongest teeth, and they are used for grinding food.
To keep your teeth healthy and strong for a lifetime, it is important to brush and floss twice a day and see your dentist for regular checkups and cleanings.