Source: United Press International
Date: December 20, 2006
Summary:
Dentists at the University of Southern California School of Dentistry have created root and ligament structures able to support crown restorations from the extracted wisdom teeth of 18- to 20-year-olds by harvesting stem cells from the root apical papilla of the extracted teeth, which is responsible for the development of a tooth's root and periodontal ligaments.
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