Dark spot on front teeth. What is it?

[Error_Glittering]

So, I try and take good care of my teeth, but I noticed very small, tiny dark, black spot/dot on my two front teeth. It can barely be seen by naked eye. Been to dentist yesterday, he said he cant remove it, cause he will use 10x more of healthy tooth, just to remove this tiny spot. It bothers me. Anyone know why it appeared? Is this cavity? Dentist called it "pigmentation" or something.

 

[honestdoc]

It appears like a deep stain and your dentist is right about destroying tooth structure to polish or restore it with bonding (weak restoration). Try some Over-the-counter whitening strips or maybe professional whitening agents to bleach the stain away.