One of Britain's biggest gorillas has had root canal surgery.
Footage shows the operation being performed by specialist Zoo dentist Peter Kertesz and his team.
The 28 stone ape is a silverback western lowland gorilla named Pertinax and lives in Paignton Zoo, Devon, where the operation was carried out.
Uploaded on December 10, Jo Reynard from the Paignton Zoo vet team explained: "When a tooth is fractured the living pulp becomes exposed, this can lead to an infection and an abscess.
"The dentist removed the pulp and replaced it with special biocompatible material, so preserving the tooth."
Mr. Kertesz is one of only a few specialist Zoo dentists in the world.
He has worked on exotic species such as gorillas, whales, pandas and elephants all over the globe - from Britain, Hong Kong, Moscow and the Middle East.
Here is the full video:
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