Maybe you’ve looked through your selfies-with-friends photos lately and noticed that your smile appears off-color compared to the others. Or maybe you’re just seeing a bit of yellow creeping into teeth that used to be whiter. What gives?
Research indicates that advancing age is a natural factor in the discoloration process of the teeth. Many times, genetic factors and family history also contribute to this condition. As a person starts to age, the tooth starts to lay down more dentin, thus reducing the pulp which in turn diminishes the translucent effect of the teeth, giving off a more yellow shade.
As the enamel layer of the teeth starts wearing down and thinning itself due to chewing, the yellow dentin is exposed making the teeth look yellower. Dentin is a deep, yellow to brown, tinged material inside our teeth under the enamel. It is the primary cause for teeth appearing yellow. Color changes occur when the enamel starts scraping off and more of the dentin reveals itself.
Sauces, dark curries and black coffee are big culprits which tend to stain the teeth if used excessively and regularly, since they contain chemicals known as tannins, which are famous for their blemishing properties. Their residue tends to stick on the teeth surface, tarnishing the enamel. Soda and fizzy drinks are also big contributors to discoloration of teeth. These items create stains on the teeth surface.
Nicotine is not only a bad addiction, but the tar from smoking is pretty damaging to oral hygiene- even leading to gum diseases and mouth cancers in cases. Chewing tobacco also falls under this category. Heavy smokers often complain of ending up with ugly brownish/yellowish teeth, a bad odor and crippled teeth.
The most apparent effect of smoking is the discoloration of the teeth, often leading to social embarrassment. People spend lavish amounts on whitening treatment, but the best treatment is to quit smoking.