Jonathan Gillmore Jonathan Gillmore Nitrate reported in and use an additional product in the tray if they need it nicely if I got my worst-case scenario of sensitivity all start out with two weeks of progression we call it without potassium nitrate toothpaste dental. Have where the tray by self because the tray sometimes call sensitivity and I am sleeping one night because sometimes bite on the tray will cause some kind of irritation. Still have put potassium nitrate in the tray because some patients perceive pressure of the ingredient as sensitivity on the tray sleep and therefore night then they can start their bleaching. Selectors and a chance to get used to the the pre-brush they get used to where the tray they get used to where it have a something in the tray and then they go to the bleaching material. They can do during the day if they feel that the really concerned about sensitivity or go over night and then use the pure potassium nitrate in the tray as needed.