First, the patient’s teeth are cleaned with a swab, then the professional inserts a mouth prop and cheek retractor into the patient’s mouth. After that, the gel is applied to the patient’s teeth and the light is activated. Then the only thing to do is for the patient to relax! The light stays on for about 15 minutes, then the patient’s done. For some patients, it’s possible to do two 15-minute sessions, one after the other. The entire procedure is pain-free for the patient. Even sensitive teeth should be fine during the treatment. It’s common for a patient to feel a slight tingling sensation or a bubbling sensation for the first few minutes, but this isn’t uncomfortable for the patient, and it’s just a sign that the gel is producing oxygen for the bleaching!