If you are smoker,the extrinsic stains can removed by scaling and polishing of teeth,it usually cost around 1000 - 2000 depending on the extent of stains. If the discolouration is intrinsic mild to moderate stains can be removed by teeth bleaching procedures. The cost ranges from 4000 - 20000 for ZOOM whitening procedures. for Severe intrinsic stains like fluorosis stains I suggest you go for veneers/Laminates.
Next Steps
For cleaning and basic teeth bleaching any dentist can do the procedure. Thorough consultation with a prosthodontist is mandatory in case of severe intrinsic stains.
Health Tips
Regular Teeth brushing twice a day with proper brushing technique is essential for maintaining sparkling white teeth. Always ask your dentist for correct brushing technique. Use a soft or medium bristles tooth brush.Change your tooth brush every three months and get a professional scaling done every six months for maintenance of proper oral hygiene and healthy teeth.