Teeth whitening?

Does anyone know teeth bleaching toothpastes? that are really effective? thats actually work and are affordable?
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Do, these Nature Cure : Dental care & mouth care. After every meal, chew a little salt and gargle with water. Soft brush can be used to clean the particles caught between the teeth and the gums. Make it habit to clean the teeth every morning and before retiring to bed. In India, people use thin twig of a Babul, Banyan or a Neem tree (known as Datoon) as a brush. First it is to be crushed to make it soft and then use it like a brush. It is advisable to us a Datoon of Babul, Banyan or Neem tree at least once a day. It is reported by experienced dentists that tooth pastes available in the marked are not much effective. Instead, the following tooth powder or paste which can be easily made at home has been found quite useful for the care of gums and teeth : 1. Tooth Powder : Mixture of finely ground alum powder 40% and rock salt or regular salt powder 60%. For better results, a few drops of lemon may be added. In case of dental problems, adding a little of 'Sudarshan' (a bitter Ayrvedic powder is also recommended. 2. Tooth-paste : For dental problemslike bleeding, pyorrhoea, toothache, etc. make a paste of 50% alum powder 10% rock salt or table salt powder 10% Sudarshan powder (an Ayurvedic preparation) 15% edible oil (unrefined) 10% glycerine tanic acid 5% camphor. The paste made of this mixture can be massaged on the teeth and gums in the morning and evening with fingers. It ca be packed in collapsible tubes/jars and used, as tooth-paste. 3. Even massaging the gums with a mixture of 70% unrefined edible oil (seasame or groundnut or coconut), 15% glycerine tanic acid and 15% fine powder of rock salt or table salt is useful for good, healthy teeth and gums. Make it a daily habit. Please not that healthy gums are more useful than sparkling white teeth. 4. Mouth Freshener : Gargling with a lemon juice mixed with lukewarm water, freshens the mouth. Take a quarter of a lemon, massage it on teeth and gums and then gargle with water. Even chewing of mango, tulsi or betel leaves after meals is good, and so it is advised in India. 5. Exercises for teeth : Keep the lips closed. Pound the upper teeth on lower teeth for 30 to 40 times twice a day. Then massage the saliva on gums with the tongue. That will ensure proper blood circulation in teeth and increase the life of healthy teeth and gums.
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