Hellow guys, Welcome to my website, and you are watching 생로병사의 비밀 - 전신질환을 예방하려면 치주염을 조심해야 한다! 20181114. and this vIdeo is uploaded by KBS 다큐 at 2018-11-14T06:37:41-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.