Think about cost-benefit: in-office treatments are much faster however pricier; take-home trays are economical with steady
https://martinvddt734.iamarrows.com/why-professional-whitening-is-safer-for-your-enamel
Consider cost-benefit: in-office treatments are much faster however pricier; take-home trays are economical with gradual results-- choose based upon timeline and budget.