I am a big fan of chair-side air abrasion.There are so many procedures today that are facilitated by air abrasion; from etching zirconia prior to seating to cleaning temporary cement off and maximizing bond strengths. The challenge has been a convenient and easy way to accomplish this. I learned about a great new piece of small equipment on a forum thread started by Mark Kleive and was intrigued. If you aren't familiar with the Etchmaster from Groman Dental, it makes Chair-side air abrasion quick easy and convenient. I recommend after watching this video that you read through the thread for more information from other users of the Etchmaster.