we have four different types of teeth.what would happen if we had one type of teeth?
Answers
Answer:
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.
Explanation: