Joy Onuorah Multiple factors cause teeth to become dull and lose their bright, white sparkle. Certain foods can stain your enamel, which is the outermost layer ...

Joy Onuorah What causes yellow teeth? There are many factors that can cause teeth to turn yellow.Teeth can become yellow from: • certain foods or drinks, ...

By Patricia Uyeh, A smile is not just a facial expression, it is way of letting the other person feel accepted and welcomed. It is the ...