A nine foot tall polar bear weighing 922 pounds (66 stone) has successfully undergone a root canal.
Boris, a resident at Washington’s Point Defiance Zoo and Aquarium, underwent the four-and-a-half hour procedure on Saturday.
The 27-year-old bear also received minor surgery on an injured eyelid and a general check-up by a team of staff led by oral and maxillofacial surgeon Jim Reed, The Seattle Times reported.
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Boris is one of three polar bears at the Zoo's Arctic Tundra exhibition, which mirrors a coastal setting near Point Hope, Alaska.
He was rescued from a Mexican circus in Puerto Rico ten years ago.
WATCH: Up Close And Personal With A Polar Bear
