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:
“The wisdom of others remains dull till it is writ over with our own blood. We are essentially apart from the world; it bursts into our consciousness only when it sinks its teeth and nails into us.”
—Eric Hoffer (1902–1983)
“Poverty is the result of bad adjustment between the soul and its desires.... In the days of great poverty, I did not mind the sensation of hunger.... But ... to be deprived of tooth paste, to brush the teeth without it, was a dreadful thing, a daily discomfort.”
—Alice Foote MacDougall (1867–1945)