Natural teeth color is Yelowish white and if there are any extrinsic stains may be removed by just scaling or teeth cleaning. so better visit nearby dentist and after check up decide for Whitening or not ? we will not apreciate any chemical to use on natural teeth unless recommended.

Hello Sir . Specific stains need specific treatment. So what you first need is a dental checkup. By that we can asses what exact type of stains they are. As some can't be removed by dental whitening. The fee depends on the city you are in and the quality of results you want.  As I am not from Kolkata it won't be possible to give a general fee on that. Hope this helped.

Hello sir permanent tooth natural colour is creamy white no problem sir just chil bleaching is critical process then continue 6 month is doing bleaching

Hello bleaching and whitening strips r option for whitening.in Kolkata may be 5k to 15k