What is Brighten?
The term "brighten" describes the process of making the tooth surface lighter. It is an effect from the use of certain products and is similar to a "luminizer." An artificial light source is put into a cavity or a wound to enhance color, hardness or shine on teeth. This "luminizer" is a chemical compound (in this case, whitening agents) that reacts with an organic compound to increase the color, hardness, and/or shine of the tooth surface. When these products are applied to a healthy tooth, the effect is similar to "lightening" the tooth.
In order to improve the teeth appearance, the tooth surface must be brightened. Brightening products do so by increasing the amount of light (red light) that enters the surface of the tooth. Most brightening products are "fluorescent" or "color-correcting" (that is, they change the color of the light it produces from the light we normally see). For example, whitening products often use "fluorescent" fluorescent tubes. There is also a wide range of brightening agents that are not fluorescent (including a number of different colors of color in some of these products). Although fluorescent and color-correcting products usually don't make a dent in the tooth surface, they do change the appearance of the tooth.