Release the strong gel over the teeth, do not put on the gum. Then place the lamp in front for a 20-minute session. Then finish by rinsing with clear water. You can repeat the operation several times for more results.
This method is more efficient than the mouth tray because the light is directly projected on the teeth without filter
Contraindications:
Not suitable for minor
Not suitable for pregnant women
Not suitable for breastfeeding women
Not suitable for people with melanoma
Not suitable for the person with dental problems