Hi there....teeth staining can be due to many reasons...if you want a proper diagnosis you should consult a oral medicine specialist. For treatment, as a permanent solution, you can opt for either laminates or ceramic veneers. Take care...!!!

Hi...laminates is the best solution. Regards

Naturally our teeth colour ranges from pearly white to pale yellow so everyone cannot hv white teeth. Get scalling n polishing done by dentist. If u r not happy with ur teeth shade later, u can get bleaching done by dentist which 'll lighten ur teeth by 2-3 shades. Alternatively u can use a teeth whitening toothpaste such as snowdent after scalling. Whitening gels used daily along with customized dental trays provided by dentist r also available in the market. Avoid heavily coloured foods, tea n coffee, cool drinks, smoking n tobacco products as they stain teeth. Certain medications also cause staining.

I think u need a proper dental checkup to b done to rule out weather f stains r external or internal Depending upon DAT, u need to undergo d treatment Proper scaling followed by polishing for the external stains and either a office or home bleach for the internal stains

It may be due to any supplement intake such as iron or due to bournvita sort of things or due to any bad habit such as smoking or tobacco ....