Zoo cured polar bear of a toothache

PITTSBURGH -- Root canal surgery for a polar bear!!!!!!!! Yes, such root canal surgery was performed at the Pittsburgh Zoo. It was performed when the zoo keepers found a broken tooth and an infection in polar bear's mouth. An anesthetic was used for the surgery on the 2-year-old, 550-pound polar bear. Read more...........Polar bear gets a root canal in Pittsburgh

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