Consider cost-benefit: in-office treatments are much faster but more expensive; take-home trays are economical with steady

https://telegra.ph/Whitening-for-Delicate-Teeth-How-We-Minimize-Discomfort-04-15

Think about cost-benefit: in-office treatments are much faster however pricier; take-home trays are cost-effective with progressive outcomes-- select based upon timeline and budget.