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Finite Element Modelling of a Cellular Electric Microenvironment
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Do cell phones affect establishing electronic working length?

Justine Hurstel1, Maud Guivarc'h2, Ludovic Pommel1

  • 1UFR Odontologie de Marseille, Aix Marseille Université, Assistance Publique des Hôpitaux de Marseille, France.

Journal of Endodontics
|March 24, 2015
PubMed
Summary

Patients can use cell phones during root canal therapy. Electromagnetic interference from cell phones did not affect electronic apex locator measurements for working length determination in this study.

Keywords:
Cell phoneelectromagnetic interferenceelectronic apex locatorworking length

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Area of Science:

  • Endodontics
  • Dental Technology

Background:

  • Patients frequently keep cell phones on during root canal therapy.
  • Cell phone electromagnetic interference may impact electronic working length measurements.

Purpose of the Study:

  • To evaluate the effect of cell phone proximity on electronic working length determination during root canal therapy.

Main Methods:

  • Twenty-six human premolars were assessed for root canal anatomy.
  • Working length was measured visually and electronically with and without cell phone contact (standby/active call).
  • Measurements were repeated, and readings were categorized for stability.

Main Results:

  • Neither cell phone type nor electronic apex locator model influenced measurements.
  • Electronic working length determination results were consistent with visual examination.
  • Accurate working length determination was possible under all tested conditions, unaffected by cell phone presence.

Conclusions:

  • Cell phones can be safely used by patients during root canal therapy.
  • No adverse effects on electronic working length determination were observed.
  • The findings support the use of electronic apex locators even with nearby patient cell phones.