From ancient times to the present, in many literary works and folk customs, a beautiful man or woman is inevitably crowned with the words “bright eyes and white teeth”. It is evident that from the ancient times to the modern times, people attach great importance to the beauty of their teeth, and the status of white and neat teeth in the appearance of beauty is extraordinary. From the aesthetic point of view, human beauty, as a part of natural beauty, refers first of all to beauty in appearance, form and physique. All forms of human beauty are highlighted in the appearance, and the beauty of the appearance concentrates on the proportionality of the teeth, jaws and facial structure, the coordination of the size and position, and the beauty and naturalness of the outline. Some people liken teeth to the second face of a person, it seems not too much. In the modern society that increasingly pursues beauty, the appearance of each person plays an extremely important role in their spiritual and social life. Many people encounter obstacles in choosing a career, socializing, love marriage and friendship due to defects in appearance, which makes them carry a heavy burden of thought. Cosmetic dentistry is not only for the appearance of good looks, but also for some defects affecting physiological functions (such as chewing, speech and pronunciation, etc.) that can be improved to varying degrees through cosmetic surgery. With the continuous improvement of people’s living standards and the urgent demand for beauty, dental cosmetic has been widely carried out, while the technology and methods have also made great progress. The pursuit of beauty is a positive attitude to life, the pursuit of beauty is a kind of optimistic performance, the pursuit of beauty is also a virtue of every person in modern society. In today’s world, neat and white teeth and a clean mouth without bad breath have become one of the signs of a person’s civilization.