Wondering if anyone can reassure me. I've just had a dental hygienist appointment today where they unfortunately failed to read my notes first. As I have an ICD I quickly raised my hand when they began to use a sonic device which I understand shouldn't be used with pacemakers. When I queried it the hygienist stopped immediately and was very apologetic, but reassured me that the manufacturers claim there are no contraindications to using this device with ICD patients. The cleaning device was on for only a moment and on the opposite side to my ICD but I'm panicking in case it will have caused any problems. Any advice please?