For years scientists have tried to build an electronic tongue, a robotic tasting device that could have profound applications in improving food quality and safety. But before machines learn to taste their food, they first need to learn how to chew it.

Adding fluoride chemicals into community water supplies started in Grand Rapids Michigan where tooth decay is rising along with fluoride over-dose symptoms.

Dentists Spread False Fluoride Data.

Fluoride damages children's teeth - new dentist advisory to cut back.

Dental enamel is the hardest tissue produced by the body. It cannot regenerate itself, because it is formed by a layer of cells that is lost by the time the tooth appears in the mouth. The enamel spends the remainder of its lifetime vulnerable to wear, damage, and decay. For this reason, it is exciting to consider the prospect of artificially growing enamel, or even whole teeth, using culturing and transplantation techniques.

Today, during the 85th General Session of the International Association for Dental Research, scientists are reporting that they have developed a method for the effective healing of, and relief of pain associated with, canker sores.