The technology of teeth whitening solutions

Teeth naturally get darker in colour though time. When we use tobacco as well as wine, tea, coffee and other products that have a strong and lasting pigment content, this darkening gets worse and is harder to lighten. 

Whitening toothpaste that contains abrasives wears away tooth enamel. Others that contain hydrogen peroxide, cost more money but  some researchers are debating whether this is carcinogenic or has long term effects

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