| Summary: | 碩士 === 國立臺灣大學 === 醫學工程學研究所 === 103 === Smile is the common language of the world. If you want to have a beautiful smile, you got to have the bright teeth. Now, Aesthetic medicine is so popular that the public demand for tooth whitening is also increasing, which also stimulate the development of technology and the materials of teeth whitening. Currently, the main component (accounts for 30-35% ) of bleaching agent in dental clinic was hydrogen peroxide, which was far more than the regulation of the US Food and Drug Administration(FDA). In the past decade, some scholars use low concentration of hydrogen peroxide and photocatalyst, and coupled with the high-energy ultraviolet light(UV-light) to irradiate to whiten the tooth. However, UV-light might cause the damage of eyes. In our study, we use the photocatalytic materials with low energy LED light to reduce the concentration of hydrogen peroxide and to achieve the effect of treatment.
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