It is said that many toothpastes have the effect of whitening and refreshing the mouth, so people often think that the teeth are not white because they do not brush their teeth frequently and have poor hygiene habits. In fact, this is a big injustice. To be so convinced of the power of toothpaste is to overestimate the power of brushing. It should be known that the whitening toothpaste we usually use can only have a certain effect on the temporary attachment stains on the tooth surface, and some stubborn tooth stains are difficult to remove, and some endogenous pigmented teeth such as tetracycline teeth can not be cured. As for the traditional braces treatment, it needs to be worn continuously for 3-6 weeks, 8-10 hours a day, and its therapeutic effect is uncertain. In this regard, the Oral Center of Shiermei Hospital reminds you: Ice condensing light whitening and bleaching is a relatively direct and effective method of teeth whitening. The principle of the ice condensing light whitening method is to apply a bleaching agent to the cleaned and pretreated teeth, and then use the cold light to catalyze the decomposition of the bleaching agent to generate free oxygen atoms. The free oxygen atoms are highly active and can penetrate deep into the teeth. At the same time, the penetration depth of ice condensing light is relatively large, and it can continue to remove the pigment molecules in the deep decay of teeth, so as to play a bleaching effect from the inside to the outside, and achieve the effect of whitening teeth. Effect. Because the irradiation of ice condensing light can fully open the dentinal tubules and enhance the permeability of the teeth, the effect of whitening drugs can be increased by 27 times. , quickly restore white luster, and show the natural color of teeth. It also has a good effect on less severe tetracycline teeth and fluorosis teeth. In particular, it is worth mentioning that, compared with other whitening techniques, the duration of ice condensing light whitening is longer, generally reaching 3-5 years.