Causes of yellow teeth

• Natural causes: In some individual have yellow teeth naturally. The outermost cover of the teeth that is enamel is white in color.
• The dentin is the layer below the enamel is yellow in color. If the enamel is destroyed and the dentin is visible the teeth appears yellow
• Age: As the age advances the teeth becomes yellow in color as the process of aging. As age advances the enamel wears down and natural yellow color called dentin becomes visible.
• Poor oral hygiene is the common cause for yellow teeth
• Foods like tea, coffee, soda causes yellow of teeth
• Smoking and chewing tobacco causes staining of teeth due to deposition of nicotine

 Foods that causes that staining of teeth

• Coffee
• Tea
• Wine
• Berries
• Soda
• Fruit juice
• Colas
• Beverages
• Curry
• Soya sauce
• Tobacco
• Cigarette smoking 

 Treatment 

• Brush and floss 2 times a day
• Brush your teeth after taking coffee, tea, colas, wine, soda etc
• Use whitening tooth pastes for brushing your teeth
• Use sugarless whitening gums
• Whitening strips or bleach can be used
• Bleaching of teeth using various bleaching agents can be done by professional dentist.
• Using dental veneers
• Scaling of teeth can also be tried to decrease the staining of teeth
• Brush your teeth every time after taking food
• Rinse your mouth every day with antibacterial solution