A wisdom tooth, in humans, is any of the usual four third molars. Wisdom teeth usually appear between the ages of 16 and 25. Most adults have four wisdom teeth, but it is possible to have fewer (hypodontia), or more, in which case they are called supernumerary teeth. Wisdom teeth commonly affect other teeth as they develop, becoming impacted or "coming in sideways." They are often extracted when this occurs.
Read more about Wisdom Tooth: Impaction, Partial Eruption, Extraction, Post-extraction Problems, Treatment Controversy, Vestigiality and Variation, Potential Uses For Extracted Teeth, Etymology
Famous quotes containing the words wisdom and/or tooth:
“Much wisdom often goes with brevity of speech.”
—Sophocles (497–406/5 B.C.)
“Nor the tame will, nor timid brain,
Nor heavy knitting of the brow
Bred that fierce tooth and cleanly limb
And threw him up to laugh on the bough;
No government appointed him.”
—William Butler Yeats (1865–1939)