A giant panda undergoes a restorative dental procedure at the San Diego Zoo

Meg Sutherland Smith, associate director of veterinary services at the San Diego Zoo, uses a light to seal a dental composite during a restorative dental procedure on giant panda Bai Yun at the San Diego Zoo Wednesday, Sept. 10, 2014. The dental procedure was needed after keepers noticed a chip in one of Bai Yun's lower canines. After a dental exam was performed and X-rays taken, the Zoo's veterinary team proceeded to repair the chipped tooth on the anesthetized panda. A dental composite was used to fill in the damaged tooth, which was then cured with a light to seal the filling. (AP Photo/San Diego Zoo, Ken Bohn)
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