Oh Tooth Problems

You won't believe it, but today a real "Buv" named O came to see you. Since the Buvs arrived on planet Earth, they have been behaving like real people. Alien O started eating a lot of sweets, so his teeth became very ugly, and some of them require serious medical intervention. So now you will be treating O's teeth. Don't be afraid, he only looks scary. You will have all the necessary tools in front of you to treat the alien O's diseased teeth. At the end, you need to pull out the black missing teeth and insert new ones in their place. When you're done, Buv O will be very grateful to you, because you gave him back his healthy smile and now he can eat normally and not complain that his teeth hurt. Good luck!