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Related Experiment Video

Updated: May 14, 2026

In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder
07:05

In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder

Published on: June 6, 2025

External Root Surface Temperature Elevation During Gutta Percha Removal Using Er,Cr:YSGG Laser: A Time-Duration

Annappa Raghavendra Vivekananda Pai1, Ashwini Savia Colaco2

  • 1Department of Conservative Dentistry and Endodontics, Manipal University College Malaysia (MUCM) Faculty of Dentistry, Melaka, Malaysia.

European Endodontic Journal
|May 13, 2026
PubMed
Summary
This summary is machine-generated.

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Longer erbium, chromium: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) laser application for gutta-percha removal significantly increases root temperature. To prevent tissue damage, Er,Cr:YSGG laser use for gutta-percha removal should not exceed 5-8 minutes.

Area of Science:

  • Endodontics
  • Dental Lasers
  • Root Canal Treatment

Background:

  • Root temperature elevation during laser application is a known concern.
  • Limited data exists on the relationship between Er,Cr:YSGG laser duration and temperature rise during gutta-percha removal.

Purpose of the Study:

  • To comparatively evaluate root temperature changes during gutta-percha (GP) removal using the Er,Cr:YSGG laser at different application durations.
  • To determine the optimal duration for safe and effective GP removal with the Er,Cr:YSGG laser.

Main Methods:

  • Forty-two gutta-percha-filled root samples were divided into three groups (n=14) for Er,Cr:YSGG laser treatment.
  • GP removal was performed using identical laser parameters, with application durations of 8, 10, and 12 minutes.
  • External root surface temperature was measured at the apical third using a thermocouple and digital thermometer.
Keywords:
Erbium lasergutta perchaobturationremovalroottemperature

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Last Updated: May 14, 2026

In Vitro Evaluation of The Effects Of Er,Cr:YSGG and Diode Lasers Used on Titanium Cylinder
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Main Results:

  • A significant temperature increase was observed with longer Er,Cr:YSGG laser application durations (P < .05).
  • Groups II (10 minutes) and III (12 minutes) exceeded the critical thermal limit for root surface temperature.
  • The highest temperature elevation occurred in the 12-minute group, followed by the 10-minute and 8-minute groups.

Conclusions:

  • Extended Er,Cr:YSGG laser application for gutta-percha removal leads to temperature elevations exceeding critical thermal limits.
  • To minimize detrimental effects on surrounding tissues, Er,Cr:YSGG laser use for GP removal should be limited to 5-8 minutes.
  • Further clinical studies are needed to validate these findings and establish best practices for laser-assisted root canal procedures.