eCosmetics is an authorized retailer of Supersmile. Two heads are better than one! Includes two replacement brush heads featuring our patented 45u00b0 brush head that works exclusively with Zina45's cleaning modes to help you effectively clean above and below the gum line, preserving your oral (and overall!) health. Designed to work with our xina45u2122 Sonic Pulse Toothbrush which delivers a pro-level clean and polish at home.Unique brush head that cleans under the gum line Expert cleaning + gum health Safe to use on dentures, veneers, bonded or sensitive teeth