TOKYO - OCTOBER 09: A man receives a massage from a new oral rehabilitation robot 'WAO-1' on October 9, 2007 in Tokyo, Japan. The robot was developed by joint study team from Waseda University and Asahi University led by Professor Atsuo Takanishi. The robot is expected to replace facial massages administered by doctors for the treatment of temporomandibular joint disorders and dry mouth disease. Getty Images logo Getty Images 52 months ago

TOKYO - OCTOBER 09: A man receives a massage from a new oral rehabilitation robot 'WAO-1' on October 9, 2007 in Tokyo, Japan. The robot was developed by joint study team from Waseda University and Asahi University led by Professor Atsuo Takanishi. The robot is expected to replace facial massages administered by doctors for the treatment of temporomandibular joint disorders and dry mouth disease.

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