White lines on teeth

[Crochetmadmama]

This is my 9 years old teeth, these white lines have suddenly appeared, hes had no anti biotics, hes been a bit ill with a cold these past few days , does anyone know what these are?

Looks like the start of Flourosis

I thought that was while the teeth are coming through, hes had his front teeth for about 2 years and these lines have only appeared in the last day :(

I have this. I was told it was because our mums were told to give extra fluoride and it was already in the water