The child will be seated comfortably in a room without noise or sound interference, with the head positioned on the Frankfurt plane (parallel to the floor). The active tip of the laser will be covered with plastic wrap to avoid cross-contamination and for reasons of hygiene. The site to be irradiated will be previously cleaned with 70% alcohol. Twelve sessions will be performed (two per week). The following will be the laser parameters: wavelength - 786.94 nm; conventional tip; energy density - 25 J/cm²; intensity - 1.675 mW/cm²; output power - 70 mW (0.070 W); and exposure time - 20 seconds per point. The point application method will be used with direct contact with the skin (spot beam of 0.04 cm²), following the protocol. A potentiometer will be used to determine the mean power of the laser equipment to ensure the safety of the operator.