My teeth are tetracycline teeth. I went to many hospitals and spent a lot of money on whitening. I didn't believe it when I saw the beauty crown technology of cosmetic dentistry in Jiujiang Union Medical College Hospital. After I went there for detailed consultation, I dismissed my concerns. At that time, Dr. He, who received me, patiently explained the technical principles of beauty crown and helped me design a dental beauty program. It only took me seven days to solve my tetracycline tooth trouble for more than 30 years. I really appreciate Jiujiang Union Medical College.