"Professor Lin, I am 25 years old. Can I correct my mistake? Will this age correction effect be good? By the way, I have had tooth decay before. Will filling two teeth affect my correction? " Miss Chen, who loves beauty, can't wait to ask Professor Lin a few questions. It is understood that Miss Chen's uneven teeth make her embarrassed on many occasions, and she has been afraid to laugh in front of colleagues and friends, which has been bothering her. I heard that this orthodontics lecture was attended by experts from Peking University, so I quickly signed up to let the experts see if the teeth can be corrected. When Professor Lin examined Miss Chen's oral condition, she found that her upper teeth were irregularly arranged, and her lower teeth became sparse because of the lack of two front teeth, which was very unsightly. "Do you have any requirements for the effect of orthodontics?" Professor Lin asked. "My biggest wish is to eliminate the gap between the lower teeth and make the upper and lower teeth arranged neatly." Professor Lin introduced that Miss Chen can do orthodontics at this age, and the correction effect can be ideal. According to the examination, Miss Chen needs to pull out two teeth in the upper row, in order to make enough space for the teeth in the upper row. In order to arrange it neatly, the whole orthodontic process takes about 2 years. This article is labeled: