Tooth Enamel Coffee Tea How Can You Tell The Difference Between Loss Of Tooth Enamel And Staining?

How can you tell the difference between loss of tooth enamel and staining? - tooth enamel coffee tea

I have a few marks on the front teeth, like the loss of tooth enamel. However, they have a relatively fast (several months) can occur. How do I know whether patches of tea and coffee, or the loss of tooth enamel? It may be that the loss of tooth enamel fast?