How to laser whiten teeth? The following is the process introduction: 1, before the operation begins, the dentist first oral examination and communicate with the whitening patient, pregnant women and serious periodontal disease patients will not be suitable for this type of teeth whitening. 2, and compare and record the color of the teeth before whitening, can be photographed and archived. 3, whitening patients and operators wear goggles. 4.Place the mouthpiece into the patient’s mouth. 5.Using polishing sand to make the surface of the teeth for simple treatment. 6.Place the spacer wet tampon into the inside of the lips and apply lip protection oil. 7, Apply light-curing resin on the gums and cover to 0.5mm under the gums, irradiate with light-curing lamp for about 3 seconds 8, Mix hydrogen peroxide with whitening powder to make a paste, apply the adjusted whitening agent on the surface of the upper and lower a total of 16 or more teeth, and the thickness of the application is about 2-3mm. 9, adjust the cold light lamp head, the lamp head should be 90 degrees perpendicular to the surface of the teeth, and the closer to the opening the better. 10, press the start button, start the first 8-minute session, after the end of the machine will automatically stop, and then use a strong pipette to absorb the whitening agent off the surface of the teeth, use a cotton ball or paper towel to wipe the teeth of the residual whitening agent, do not use water to rinse at this time. 11, Repeat steps 8-10 for the second 8-minute session. 12. If the patient reacts with tooth sensitivity or pain, the whitening operation should be stopped. 13, usually two 8-minute sessions can see obvious results, but we recommend doing 3 sessions to achieve the most ideal results. 14.After whitening is completed, suck off the whitening agent, carefully remove the light-curing resin and tampon, rinse the teeth and crevices with water, and remove the mouthpiece and goggles. 15, do whitening after the teeth than color, you can take a photo archive. 16, a small number of patients in the whitening of individual teeth will have a slight soreness, is a normal phenomenon, usually after 12 hours will automatically disappear, if necessary, you can take a piece of painkiller, can slow down the symptoms. The laser wavelength is shorter, the penetration force is stronger, is easier for the drug to go deeper into the dentin, and its irradiation range is wider, an irradiation by the original one tooth to expand to 4, so greatly shorten the treatment time: the whitening process from the original more than an hour to 20 minutes. And laser whitening laser output power is low, can make the tissue peripheral nerve pain threshold is zero, so the treatment is completely painless, you can easily whiten teeth.