The human experience includes the subconscious influence of a white smile that emits happiness, pleasure, comfort, and invitation. An infectious grin lets you feel and be viewed as a star, regardless of personal or social expectations. Whiter teeth, which are thought to be one of the keys to an appealing smile, have become more popular as a result of social approval.
The milk teeth of an infant are usually lighter in color than the adult teeth that accompany. Adult teeth also darken as they get older. Teeth discoloration affects one’s appearance as well as their psychological well-being. Teeth whitening attempts have been made for decades as a result of tooth discoloration. Anything from chewing gum to advanced oral restorative therapy has been and continues to be used.
Why tooth is discolored?
Intrinsic, extrinsic, or a mixture of the two types of tooth discoloration exist. Its shape, cause, severity, location, and conformity to the teeth are all different. Changes in the texture of enamel or dentine, or the absorption of chromogenic material into tooth tissue, cause intrinsic tooth discoloration, which may occur during tooth development or after eruption.
Extrinsic staining is caused by dietary conditions and smoking; tannin-rich foods such as red wine, coffee, and tea may cause extrinsic staining. Extrinsic stain is caused by carotene, a dye used in oranges and carrots, as well as cigarette use, whether smoking or chewing.
Methods for whitening
There are several methods which can be employed in whitening the teeth. These include
The permanent teeth are bleached by direct contact with the tooth surface in an external, or more generally vital, approach. Where discoloration is caused by pulpal tissue death that has necessitated root canal therapy, an internal, or more generally non-vital solution is used. When bleaching vital and non-vital teeth in the same jaw together, a third solution, which is a combination of both approaches, may be used. It is referred to as inside/outside bleaching.