I was getting an old crown replaced at Dr. Hadley’s office. Not a big fan of the dentist. He said he was going to use a new device to assist in administering the numbing medicine. He showed it to me and held it to my cheek just to feel the vibration. He then put it in my mouth and then started to admininster the shot. No Pain, no pinch, nothing but vibration. It pleasant experience for sure.