Hellow guys, Welcome to my website, and you are watching 일상생활에서 치주질환 예방하는 방법! | #유디치과지식백과. and this vIdeo is uploaded by 유디톡 UDTalk유디치과 at 2020-11-12T16:56:20-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.