Consider cost-benefit: in-office treatments are much faster but more expensive; take-home trays are cost-effective with progressive
https://www.mediafire.com/file/o3befn9icv9m7xv/pdf-54850-44416.pdf/file
Think about cost-benefit: in-office treatments are much faster however pricier; take-home trays are cost-effective with progressive outcomes-- choose based on timeline and spending plan.