Best in Class The Strategist’s carefully chosen and rigorously vetted flagship shopping guides. Learn about our methodology here , and find all our Best in Class guides here . Photo: Marcus McDonald In this article Best overall Best brush-on gel Best pen Best strips Best all-natural strips Best foam Best toothpaste Best mouthwash As the Strategist’s dental-hygiene expert, I’m constantly trying the latest oral-health products, from toothpaste to tongue scrapers. Teeth-whitening treatments are