How long does teeth whitening last?
Professional teeth whitening can last up to two years. The factors that shorten it, how to make it last longer and how often it is safe to whiten again.
Clínica Dental Javier Arroyo & Fernando Hernández
The most effective teeth whitening: which is the best method?
Which whitening method really works? Combined whitening with Philips ZOOM!, at-home whitening, strips, whitening toothpastes and activated charcoal, and which ones we do not recommend.
