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Related Experiment Videos

The individual with a pacemaker in the dental environment.

A B Simon, B Linde, G H Bonnette

    Journal of the American Dental Association (1939)
    |December 1, 1975
    PubMed
    Summary

    Electromagnetic interference from dental equipment rarely affects pacemakers, but vigilance is crucial. One pacemaker model showed interference, causing brief cardiac pauses in patients, highlighting the need for protective guidelines.

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    Area of Science:

    • Biomedical Engineering
    • Cardiology
    • Dental Technology

    Background:

    • Pacemakers are vital for cardiac rhythm management.
    • Dental procedures involve equipment that can generate electromagnetic fields.
    • Potential interference between dental equipment and pacemakers requires investigation.

    Purpose of the Study:

    • To systematically assess electromagnetic interference (EMI) risks from dental equipment to pacemakers.
    • To evaluate the impact of specific dental devices on various pacemaker models.
    • To establish guidelines for patient safety in dental environments.

    Main Methods:

    • Testing multiple pacemaker models from different manufacturers.
    • Utilizing various dental operatory equipment, including pulse generators, pulp vitality testers, and ultrasonic cleaners.

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  • Observing pacemaker function and patient response (including asystole and symptoms) in a clinical setting.
  • Conducting animal studies with implanted pacemakers.

    • Main Results:

    • Only one tested pacemaker model exhibited interference from dental equipment.
    • Two out of three patients experienced brief (2-second) periods of asystole.
    • One patient reported symptoms associated with asystole.
    • Pacemakers in canine subjects remained unaffected by pulp vitality testers and ultrasonic cleaners.

    Conclusions:

    • The risk of significant EMI from dental equipment to pacemakers is low but not negligible.
    • Severe symptoms are an unreliable indicator of pacemaker interference.
    • Guidelines are necessary to ensure the safety of pacemaker patients during dental procedures.