Each tooth is made up of an inner dentin layer and a hard outer enamel layer, which protects the teeth. Tooth stains occur because foreign material (food, coffee, cigarette smoke, etc.) accumulates to form a pellicle film over the enamel layer. As this pellicle layer sits on your teeth for years and years, the foreign material gets into the enamel. The enamel layer is made up of hydroxyapatite crystals, which form microscopic hexagonal "rods." As the enamel is porous, the staining agents work their way down into the tooth.Whitening can be achieved in two ways:
- In-office whitening
- Take home whitening
If you want to have a whiter or brighter smile you can ask Dr. Robinette about the whitening procedures.