Evaluation of Tooth Sensitivity After Scaling and Root Planing Treated With Photobiomodulation

120 patients with dentin sensibility after non-surgical scaling and root planning (SRP) will be randomly included in 2 groups: Experimental Group: SRP+ Photobiomodulation (PBM) The dosimetric parameters for the treatment included a wavelength of 660 nm applied in continuous mode with a radiant power of 100 mW (0.1 W). The irradiance ranged from 35.385 mW/cm² to 35 W/cm², with a beam area of 0.002826 cm². Each point received an exposure time of 30 seconds, resulting in a radiant exposure of 1.061 J/cm² and a total radiant energy of 3 J. The procedure involved six irradiated points per tooth, distributed across the vestibular surface (apical, middle, and cervical regions) and the palatal surface. The application technique was performed in contact, maintaining a 90-degree angle to the surface. The treatment consisted of a single session.

Simulation of the use of FBM will be carried out identically to the Experimental group. The person responsible for applying the FBM will simulate irradiation by positioning the devices in the same locations described for the FBM group, however, the laser pointer will be turned off and the sound of the device will be recorded to mimic the use of the equipment and the participant will not identify the group to be used. who belongs. In this trial, we have no criteria for discontinuing or modifying allocated interventions because no harm is expected with this intervention.