Dentistry: Wisdom of the Third Molar

When a tooth growing out from its bud in the jawbone gets trapped—either in the bone itself or between other teeth—dentists say that it is "impacted." The problem occurs most often with the four so-called wisdom teeth, or third molars, which generally erupt around the end of adolescence. And the catalogue of troubles that have been traced to impacted wisdom teeth is virtually endless. At one time or another, New York University's Dr. Irving Salman told the Greater New York Dental Meeting last week, they have been accused of causing everything from facial deformity to infections, from cysts to...

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