Teeth whitening is the process of removing pigments which give yellow color to the teeth.

There may be various reasons for teeth discoloration and stains. Over time, depending on the frequent consumption of colorant food and liquids (tea, coffee, cigarettes, etc.), yellow-brown staining may be observed on the teeth; during development, color change may occur depending on the use of antibiotics or trauma. It is also known that the teeth treated with root canal treatment have a grayish color change over the years due to the loss of water.