It Is Caused by Internal and External (Extrinsic) Staining!
Natural teeth are not pure white but are usually light yellow. Everyone’s teeth are different. Although there are ways to whiten your teeth, your teeth may not be as white as you would like. Accept what can’t be changed. There are internal and external causes of pigmentation on teeth. The reason could be the internal enamel of the teeth or mother's improper use of antibiotics during pregnancy. Children could have stained or mottled teeth due to exposure to excessive fluoride during childhood.
The color of teeth is influenced by many reasons. You may know that yellow teeth can be caused by smoking, drinking a lot of tea, coffee or red wine, these can impact the colour of your teeth. But If you’re not consuming these products, you may be wondering why you don't have a perfect shade of white teeth. Some reasons like natural process can affect the appearance of your teeth, this is outside your control.
As you age, the protective coating on teeth, known as enamel, will fade over time and expose more of the dentine inside the tooth. The thinner the enamel, the more yellow hue your teeth appear. It is a part of the natural ageing process and outside your control.
External factors are mostly related to diet. Tobacco, alcohol and tea cause stains on teeth and as one ages, plaque and tartar accumulate and cause teeth to be less white. Reduce your intake of pigmented foods like cherries, blueberries, curries, soy sauce and Balsamic vinegar, may help you to control the yellow appearance on teeth.
If you have any questions about medical conditions or treatment, always seek opinions from a dentist or other qualified health care provider.