First of all, it is necessary to determine whether the leftmost tooth is wisdom tooth and correct it. Generally all wisdom teeth need to be pulled out. If it is a wisdom tooth, it will not affect the correction.

Second, there needs to be a gap between the teeth so that the teeth can move. General orthodontics will require the extraction of several weak teeth, such as the third.

Third, if the last tooth is functional (not the last wisdom tooth), it is best to put it away. If you insist, it is not impossible. Just be prepared for the poor results. It is suggested that function should be considered first, and then beauty should be considered.