1. Your teeth condition should guide your decision, if there is minor gap in teeth, clear aligners at home is good solution.
2. If your teeth or a single tooth is rotated out of axis, consider a doctor guided treatment
3. If along if teeth bite also had to be corrected, it is better to choose a clinic rather than doing it at home
4. If you have over crowding and needs teeth extraction or an interproximal reduction (IPR) must choose a doctor for your teeth alignment
5. If you want to move teeth and also need to improve teeth shape, size and texture. Do it at a clinic where multiple discipline doctors are available.
6. If you are concerned about expertise and experience of doctor, do not be swayed by online marketing. Meet the doctor, discuss your teeth condition
7. Read online reviews on Quora about treatment at home