Hello, there is no age limit for orthodontics, so according to your situation, you can have orthodontics at the age of 27. Although, on the whole, the golden age of orthodontics is adolescence, it is easier to achieve the ideal orthodontic effect because it is in the period of growth and development. However, in fact, adults can completely correct their teeth. According to different dental conditions, the corresponding time and methods will be different. I suggest you check and repair as soon as possible.