i am having some problem with my first four

[ajay j]

teeth.. there are dark shades at the back of those teeth..? What are those dark shades and why is it appearing? i scraped it a few times but it is getting worst.. i am having an oral (tongue) piercing.. can that be a reason for the shades??

[ala u]

This is due to improper brushing and selection of tooth paste.You brush your teeth twice per day and use some ayurvedic paste for maintain your teeth further damage.consult any good dental surgeon.