Unlike skins or bones, the tooth enamel, which forms the hard surface of a tooth, does not regenerate itself once damaged. Therefore, the conventional dental treatment includes drilling of the decayed part of a tooth and filling the hole with resin or metal alloy dental materials.
However, such therapy has its limits in the sense that it makes the teeth
liable to recur. The problem is that 60% of dental therapy is said to be
a retreatment of the tooth once treated, and that is because the dental
materials such as resin or metal alloy are totally different from a tooth
in composition and structure, and those differences cause tooth decay at
the contact point.
The dental therapy by regenerating the tooth enamel rather than drilling
the decayed part is the ultimate approach to therapy which every dentist
in the world should seek. We have succeeded in developing such therapy
of dreams, and we think in the near future this therapy will provide a
tremendous decrease in the total incidence of tooth decay by applying it
to tooth decay prevention.
 
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