Interference of cardiac pacemaker and implantable cardioverter-defibrillator activity during electronic dental device use

By Roedig JJ, Shah J, Elayi CS, Miller CS.

Date: 05/2010
Journal: J Am Dent Assoc

Summary:

  •Purpose: to determine if electromagnetic interference of cardiac pacemaker and implantable cardioverter-defibrillator (ICD) activity occurs during the operation of electronic dental devices.

 Materials/Methods:

  • Pacemakers and implantable cardioverter-defibrillators (ICDs) are electronic devices that emit electrical signals and are sensitive to electromagnetic signals in the vicinity.
  • Nine electronic dental devices in vitro to assess their ability to interfere with the function of two pacemakers and two ICDs as determined by electrocardiographic telemetry.

Most highlighted Results: 

1.The use of the ultrasonic cleaning system caused interference with both the single- and dual-chamber pacemakers.

2.The use of the battery-operated composite curing light inhibited pacing activity at 7 to 10 cm from the generator for the dual-chamber pacemaker, and at 3 cm from the generator for the single-chamber pacemaker

3.The operation of both the ultrasonic scaler and the battery-operated composite curing light interfered with the ICDs’ pacing function. P

4.acing rate and rhythm remained normal for both pacemakers and both ICDs during the operation of the amalgamator, electric pulp tester, electric toothbrush, electrosurgical unit, and high and low-speed handpieces.

Clinical significance: 

Caution when operating ultrasonic scalers, ultrasonic cleaning systems and select composite curing lights around dental patients and health care workers who have pace- makers or ICDs is advisable.