Think about cost-benefit: in-office treatments are much faster but pricier; take-home trays are economical with gradual
https://milowbea115.theburnward.com/how-expert-teeth-whitening-in-fact-functions-the-science
Think about cost-benefit: in-office treatments are much faster but pricier; take-home trays are economical with progressive outcomes-- pick based on timeline and spending plan.