Lead: White teeth whitening technology is the most advanced tooth whitening technology at this stage. It is a very good whitening technology at present, with rapid whitening and lasting effect. You can see the obvious effect in an hour, and the general effect can last for about five years. White teeth whitening technology is the latest and most advanced tooth whitening technology at this stage. Whitening teeth is efficient and fast, and it only takes one hour to see the obvious effect, and it lasts for about five years. White tooth whitening has realized many friends' dream of tooth whitening, and it is the most popular whitening technology at present. According to experts from Du Ya Stomatological Hospital, tooth whitening is the first whitening method combining hydrogen peroxide with potassium nitrate and fluoride on the basis of cold light whitening and tooth whitening, which breaks the limitations of traditional cold light whitening and tooth whitening, and overcomes the shortcomings such as tooth pain during cold light whitening, gingival allergy after tooth whitening and tooth embrittlement caused by special people. It has the advantages of high efficiency and rapidness, tooth protection, comfort and painless, lasting effect and no black line after whitening. The irradiation of whitening teeth can fully open dentinal tubules, enhance the permeability of teeth, and improve the effect of whitening drugs by 27 times. It is especially suitable for the treatment of exogenous pigment teeth, which can generally improve 2-4 color levels, quickly restore white luster and present natural primary colors of teeth. It also has a good effect on less serious tetracycline teeth and dental fluorosis. It is particularly worth mentioning that, compared with other whitening technologies, the whitening duration of white teeth is longer, generally reaching 3-5 years. Du Ya Stomatological Hospital has gathered top experts from China, Germany, Korea and the United States. We have also established good communication and cooperation relations with professional dental institutions and scientific research institutes in developed countries or regions, and invited internationally renowned dental experts to Du Ya for consultation and exchange regularly, which not only ensured that the medical level remained in the forefront of the world, but also promoted the research and information sharing of the world's oral frontier topics.