What You Should Know About Wisdom Teeth?

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Why They Come In?
Because wisdom teeth cause so many problems and are not really needed for chewing, doctors speculate about their function. Wisdom teeth begin growing in the jaw around the age of seven, and not just before or at birth like other teeth, says Kamal Busaidy, BDS, FDSRCS of The University of Texas Health Science Center at Houston. Throughout most of human history, the typical diet was abrasive to teeth. Under the circumstances, wisdom teeth may have been useful in the past for replacing molars that had become worn out. Now that diets are softer, teeth don’t do this as quickly, and there are no gaps for wisdom teeth to fill. Dr. Quarnstrom states there is also some evidence modern jaws are smaller than those of prehistoric humans.