The best way to straighten teeth is to straighten teeth, that is, straighten teeth. To put it bluntly, it is to move the teeth to the ideal position to achieve the purpose of beauty. It can be corrected. Although you are past the best age for correction, if you decide to correct it, I suggest you go to a local regular hospital for correction. Let the doctor examine you carefully before correction and make a specific correction plan. It will take about a year and a half. 2014-02-2013: 45: 02 hello! It is necessary to wear braces all the time. Its main function is to repair the canal. It is recommended to wear this for more than one year. It is recommended not to take it out. I wish you good health. Dr Zhao is good at surgery.