i suggest you visit a dentist and get your teeth cleaned for gum pain and bleeding. for yellow teeth use baking soda salt and lemon juice paste to brush your teeth and then use normal tooth paste. use this paste twice a week only and it will give you good whitening. also you should maintain oral hygiene properly and use mouthwash after brushing. you can use peel of banana to rub on teeth for whitening but that is not applicable everywhere. visit the dentist soon to get relief from gum pain and bleeding. wish you a good dental health and happiness. for further information consult a dentist online --> <link>
my teeth has gradually becoming yellow. what can be done?