Ultrasonic scaling

Today was a different day. It was really interesting to learn how to ultrasonic scale. I thought it was pretty fun. We also learned how to sharpen our instruments. I hope I didn't ruin them. I am not sure I was totally doing it correct, but I hope I learn. Today though I don't know if it was the time change or what, but it went by really slow and I am really tired. i am not functioning very well.