Consider cost-benefit: in-office treatments are quicker however pricier; take-home trays are economical with gradual
https://www.mediafire.com/file/esr8lgkadh171ht/pdf-15244-36395.pdf/file
Think about cost-benefit: in-office treatments are much faster but more expensive; take-home trays are affordable with steady results-- select based on timeline and spending plan.