Teeth whitening is, by far, the most popular cosmetic dental procedure. Dental Whitening procedures fit within almost any budget and the results are quick. Technically, there is a difference between teeth whitening and teeth bleaching. Whitening means to brighten your teeth by removing stain caused from staining foods and beverages (berries, coffee, wine, tea, etc). This stain removal whitens teeth back to their naturally white stage. Bleaching refers to lightening a tooth from the inside-out. Bleaching brightens the inside (dentin) of the tooth, thereby making the whole natural tooth whiter.
Whitening removes stains, via polishing of the surface of the tooth (this is why some over-the-counter toothpastes can claim “whitening”, while bleaching sends peroxide into the tooth to whiten the organic material inside.