BOSTON — Many people have suffered from impacted third molars, also known as wisdom teeth. But there are also a lucky few who are missing a wisdom tooth or two (or even all four). Why do some people ...

The human dental structure has different types of teeth, each with specific functions. The primary types of teeth in the mouth are incisors, canines, premolars (also called bicuspids), and molars.

Scientists have found evidence of bacteria that cause tooth decay and gum disease in 4,000-year-old human molars. Trapped within the dental remains that were unearthed from a limestone cave in County ...

Fifty million years ago, all rodents had short, stubby molars -- teeth similar to those found in the back of the human mouth, used for grinding food. Over time, rodent teeth progressively evolved to ...

Scientists have found an "unprecedented quantity" of bacteria that cause tooth decay and gum disease in 4,000-year-old human teeth. The dental remains, believed to have belonged from a man from the ...