Post-Endodontic Instrumentation Pain After in a Single Session Associated With Photobiomodulation

Conventional endodontic treatment will be performed equally on all participants.

Treatment Group (TG) will receive photobiomodulation for molars with 808nm application (AsGaAl), infrared, equipment with a power of 100 mW, and an exit beam area of 1 cm² perpendicular in contact with the mucosa at the level of the root apices at two vestibular points and one complementary palatal point, with 3J of energy per point (30s per point), totaling 9J of total delivered energy and 90 seconds of application time. The Radiant Exposure is 3J/cm² per point, totaling 9J/cm² overall. To premolars the parameters will be 808nm application (AsGaAl), infrared, Laser Duo® equipment with a power of 100 mW and an exit beam area of 1cm² perpendicular in contact with the mucosa at the level of the root apices at one vestibular point and one complementary palatal point, with 3J of energy per point (30s per point), totaling 6J of total delivered energy and 60 seconds of application time. The Radiant Exposure is 3J/cm² per point, totaling 6J/cm² overall

A simulation of low-level laser therapy was performed on the control group starting from patient preparation (placement of glasses) and the reproduction of device sounds without activation.