Nothing adds to beauty as white teeth. People with non white teeth find it difficult to talk and even laugh confidently without using Thier hands or something else to shade their teeth. You might be wandering what could be the cause but hey! things like tea, curry, tomato sauce and, of course, coffee have a negative effect on your teeth.

If yours is already non white and you want to start seeing positive changes, start eating cheese and carrots. Lactic acid that can be found in cheese decomposes food leftovers on your teeth, while the abrasive surface of carrots acts like some sort of sandpaper that brushes off all stains. Chewing orange peel can also help you to achieve your goal.
Another effective method is mixture of baking soda and water. All that is required of you is to mix together ½ teaspoon of baking soda with approximately same amount of water until you get a paste. Next is to apply it to your teeth with a toothbrush like you would any toothpaste. Do this for at least 2 minutes and proceed to rinse. Sure, this is not something you should do on a regular basis, but doing it every other day for half a month and then reducing it to once a week is completely harmless, while still being effective.
This tip may not sound a bit new to you, you need to upgrade your toothbrush, buy paste of better quality and seriously improve your brushing technique and see your true white color teeth radiating.
Info source;http://www.premiumstech.com/2017/02/looking-for-way-to-whiten-your-teeth.html?m=1

nice. nothings like a dark girl with a nice dentition especially white teeth

My teeth is white alright but i want it to be as white as snow. So i went to my dentist, talked to him about it and he told me "guy, your teeth has the perfect colour". We humans are always insatiable.