The 4 Types of Teeth and How They Function
Your teeth and the structure of your mouth play important roles in your ability to eat, speak, and stay healthy.
Each type of tooth has a slightly different shape and performs a different job.
Most of us take our teeth for granted — until something goes wrong. Not only do our teeth help us chew and digest food, they also play an important role in speech, and impact our health overall. By brushing up on your dental health knowledge, you’ll be taking the first step toward giving your teeth the attention they deserve.
How much do you know about your pearly whites?
The Development of Teeth
Humans have two sets of teeth: primary (or baby) teeth and permanent (adult) teeth, which develop in stages. Although the timing is different, the development of each of these sets of teeth is similar. Here are some facts about how the teeth develop:
According to Shantanu Lal, doctor of dental surgery and associate professor of dental medicine at Columbia University Medical Center in New York City, teeth tend to erupt in a symmetrical manner, meaning that the top molar on your left side should grow in at about the same time as the top molar on the right.
“Tooth development begins long before your first tooth becomes visible. For example, a baby’s first tooth appears at around six months, but development of those teeth actually begins during the early second trimester of pregnancy,” says Dr. Lal.
The crown of a tooth forms first, while the roots continue to develop even after the tooth has erupted.
The 20 primary teeth are in place between ages 2 ½ and 3 and remain until around age 6. Between ages 6 and 12, these primary teeth begin to fall out to make way for the permanent set of teeth.
Adult teeth start to grow in between ages 6 and 12. Most adults have 32 permanent teeth.
The Parts of the Tooth
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Shared from: everydayhealth.com