Invisaligns are good for minor spacing problems. They often are more effective in a shorter period of time than traditional braces.
Since they are clear, other people often can’t tell you are even wearing them. Invisaligns can also be removed by the patient—which means patients can better keep up with their oral hygiene and prevent further issues with their teeth.
They must be worn 16-20 hours a day to be truly effective, however, and there is a risk that the patient will keep them out for too long. They are also not recommended for patients who have very crooked teeth.