bleaching. it s like bleaching your have you use a hydrogen peroxide reaction to brighten up the actual color of the teeth. of good . but 1st captains teeth get a cleaning treatment next a synthetic gel is added to protect the gums before the dentist applies the bleaching agent which is then activated with ultraviolet light. but. if there are a crowns and fillings in the visible area they have to be colored just after the bleaching. 45 minutes later it s over. so your teeth will be a bit sensitive to the cold for a while to make that go away faster we re going to apply a fluoride gel after one or 2 days that feeling should be gone. in this test bleaching the best result and now katherine can t help flashing her