Using a 3-mm extended tray during at-home nightguard vital bleaching (NGVB) may increase the risk of gum irritation, according to a clinical trial published on November 18 in the Journal of Prosthetic ...

SAN DIEGO - A study presented today at the International Association for Dental Research (IADR) annual meeting that looked at the whitening efficacy of four different bleaching tray designs found all ...