Proteins
Like the ones contained in beef, chicken, eggs and turkey are rich in phosphorus. When phosphorus combines with calcium and Vitamin D it helps produce and protect our teeth and bones. Getting enough protein will keep your teeth healthy.
Fruits
Many different types of fruits contain large amounts of Vitamin C which is considers the glue that keeps cells together. Research has shown that people that don't get enough Vitamin C will cause the collagen network in your gums to break down which makes them more susceptible to bacteria and infection.
Onions
Though this one wont make you any friends if it lingers on your breath the humble onion does quite a bit for our teeth. The onion is rich in anti bacterial sulfur compounds that will clean out that lovely tooth rotting bacteria right out of your mouth. Advocates of the onion say that if you can stand the stink to eat them raw for the best effects.
Sesame seeds
Are great in rolls and breads have been shown to dissolve plaque and build tooth enamel and also contain a good bit of calcium to help strengthen the jaw bone and teeth.
Daidaihua can help you prevent fat more effectively, it can regulate the functions of human body comprehensively, it can accelerate fat burning and increase metabolism, it has the effects of preventing constipation. And it is free from side effects. No rebound.

 Green tea, fruits and vegetables low in acid(apples, celery), sesame seeds, proteins(eggs), water(keeps your mouth clean)