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Identifying dead people from their teeth is a common technique, but how do
you identify someone who had false teeth? A Japanese company may have the
answer: a silicon chip. Embedded inside the false teeth, it holds a 15-digit
code that can identify the owner鈥攋ust like a 鈥減et passport鈥� chip. Hisashi
Kishigami, a dentist in Osaka, dreamed up the idea.