@slowwalker,
We also got a tooth of Buddha! But it's not at such simple place! It's at
Sri Dalada Maligawa (Temple of the Tooth). It's not that much simple! But I think this temple (Daewung-jeon of Tongdo-sa) has a Teeth of Buddha as well! That's why this nice and great structure built to secure it. Wonderful journal and valuable for all visitors of Korea!

Cheers~