Figure 1. Experimental group, name, manufacturer and the type of tooth whitening technology used in each toothpaste analyzed in this study.

Source: https://www.curaprox.com/data/downloads/21427792206Black_Is_White_e.pdfhttp://www.closeup.com.br/product/detail/512432/white-attraction-diamondhttp://www.colgate.com.br/app/Luminous/Equity/BR/Produtos/Cremes-Dentais/colgate-luminous-white-advanced.cvsphttp://www.colgate.com.br/pt/br/oc/products/toothpaste/colgate-tripla-acao-hortelahttps://oralb.com.br/pt-br/produtos/creme-dental-oral-b-3d-white-perfectionhttp://www.colgate.com.br/app/PDP/Sorriso/BR/produtos/cremes-dentais/sorriso-xtreme-white-4d.cvsp