Beauty know it all
For whiter-looking teeth, avoid lipstick with reds, Orange or copper-tones - they will bring out the yellow in your teeth. Opt for blue-ish toned reds.

The Tea Plant
The Tea Plant (Camellia Sinensis) extracts fluoride from the soil depositing it in its leaves.

Drinking two cups of tea a day gives you 1.3mg of Fluoride helping protect your teeth from decay (varies).

When taken with milk it is a good source of Calcium, Vit B2, B6 and zinc.
Eat more Sushi
Research in Japan has shown that 'wasabi ' (Japanese mustard) has antibacterial properties that stop cavity causing cells sticking to teeth. It can also help prevent blood clots and asthma.