This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Buffy has been suffering from a genetic disorder that affects the enamel on her teeth since she was about 8 years old. The condition, called amelogenesis imperfecta, causes her teeth to crack and chip easily. ShareTweet
