Wisdom teeth are third molars that usually appear between the ages of 18 and 20 (although they may appear when older, younger, or may not appear at all). Often they need to be removed when they impact against other teeth—colloquially known as "coming in sideways."
Wisdom teeth are sometimes described as an example of a "vestigial" trait. Some argue that recent changes to softer diets which cause less wear on the teeth may be causing the third molars to be less useful, and, in fact, problematic in many humans. Alternately, it is possible that wisdom teeth were useful when it was common for humans to lose several teeth to decay by the age when they appear.
Although most people have four wisdom teeth, it is possible to have more or fewer. Absence of one or more wisdom teeth is an example of hypodontia. Any extra teeth are referred to as Supernumerary teeth. [http://www.wsoctv.com/health/3034496/detail.html
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Impacted Wisdom Teeth - Detailed information about impacted wisdom teeth and their different classifications with many visual supplements.
Meta Description: [ Information about impacted wisdom teeth and their different classifications. ]
To Keep or Not to Keep: Wisdom Teeth - Provides background information on the many reasons wisdom teeth are commonly removed. Also features the pros and cons of the operation and post operative patient guidelines.
What Are Wisdom Teeth? - Introductory information on wisdom teeth, common complications, and the subsequent reasons for removal.
Meta Description: [ Wisdom teeth are third molars. Normally people have three permanent molars that develop in each quadrant of the mouth; upper, lower, right and left. ]
Wisdom Teeth - Symptoms, treatment and surgery of impacted wisdom teeth, explained by Gary Sockett, consultant maxillofacial surgeon.
Meta Description: [ Wisdom teeth by Martin Danford - a Consultant Maxillofacial Surgeon. ]
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