Get your teeth cleaned at a dentist.

Good evening Yellowish colour may be due to calculus and other deposits Scaling and bleaching will make ur teeth bright You can contact me personally at Bangalore

If ur teeth r looking yellow because of any stains then it need to be cleaned by scaling & polishing by dentist. But it can’t become white by any toothpaste. & if ur teeth’s natural colour is yellowish & you want it to be white then you have to go for bleaching or veneers. Toothpaste is the only medium for brushing but right technique & two times a day brushing is important for healthy & clean teeth.