Implantable cardiac devices, such as pacemakers or implantable defibrillators, use electrical impulses to help the heart maintain its proper rhythm. Some of the ultrasonic tools your dentist uses, such as certain ultrasonic scalers or instrument cleaning systems, have the potential to interfere with these cardiac devices and could result in an irregular heartbeat.
It is important that you keep your dentist up to date about your general health, including medicines or treatments you are receiving. In this case, he or she may want to avoid using certain ultrasonic devices as part of your care.