Consider cost-benefit: in-office treatments are much faster but pricier; take-home trays are economical with progressive
https://www.mediafire.com/file/ozw20i53lz12hni/pdf-38947-82685.pdf/file
Consider cost-benefit: in-office treatments are quicker but pricier; take-home trays are cost-effective with progressive outcomes-- choose based upon timeline and spending plan.