Hmmn. My prothodonist who specializes in head and neck cancer after specific training at Sidney Kimmel CCC has only done regular cleanings with his ultrasound. But I don't know how deep he went. Let us know what you find out so I can see what he thinks. I love his panoramic X ray- no sharp cardboard squares to poke my tender mouth, even if I could open wide enough right now. It was fun to see my titanium plate with screws holding the front of my jaw together