Laser tooth whitening: Use whitening agent, cooperate with appropriate laser dosage, catalyze special catalyst, strengthen the bleaching effect of hydrogen peroxide, and bleach the organic pigment in teeth from carbon ring structure to hydrophilic pigment-free structure, thus achieving safe whitening effect. 2 1 century, I'm afraid it's your best choice for all you who stress speed and efficiency. It's OK once. A course of treatment lasts about 30 minutes. Similarly, it must be done in a plastic surgery institution. Only the upper and lower front 16 teeth, only the buccal side.
Ultrasonic cleaning: ultrasonic cleaning is mainly to remove dental calculus. Because dental calculus is more likely to cause the accumulation of oral bacteria, which leads to gingivitis and periodontal disease. Therefore, removing stones is a medical act. Of course, at the same time of treatment, the teeth will be whitened when the stones in the neck and adjacent surfaces are removed. Thick layer dyeing can also remove most teeth by ultrasonic cleaning; However, where there are holes, grooves or adjacent surfaces in the teeth, the stain is not easy to remove.
Active tooth bleaching: bleaching the denture base with personal teeth, adding 10% hydrogen carbonate, and firmly placing it on the teeth. With the increase of drug action time, the color of teeth will gradually fade and turn white. Its advantage is that beauty seekers do it at home. Beauty seekers can decide for themselves the number of teeth to be bleached. The number of bleaching and the time of each bleaching. And the end and stop time of the whole treatment. Its disadvantage is that it takes a long course of treatment, about 2 weeks, to achieve the whitening effect that ordinary beauty seekers want. In addition, the drug itself is harmful to teeth and soft tissues. It is best to do it under the guidance of a dentist.