Natural teeth shade of majority Indians is slightly pale. You cannot change natural tooth color permanently. The more you to whiten your teeth, the more yellow they will become as you will end up damaging enamel. When enamel is damaged, detin is exposed which is yellow in color. Also teeth may become sensitive. Teeth whitening is also a temporary solution and may cause sensitivity.

If your teeth are yellow due to stains it can be cleaned by dentist in several appointments. As far as aesthetic looks nd beautiful smile you need to visit a dentist for proper step by step treatment planning , Laminates & veneer will give absolutely different

Hi! If the yellowish colour is natural and the same from the start- it is very difficult to change unless and until it is too bad that you wish to treat it with laminates or crowns. If the yellow color is due to stains then u need to go for cleaning of the teeth which can help you get rid of that. Any teeth whitening procedure is not a permanent solution. It's just like bleeching the face-