A team of British researchers has developed a gel capable of regenerating tooth enamel, an achievement that could have a huge impact on our oral health. We are not talking about a futuristic treatment or a far-fetched promise, but about a technology that imitates the natural processes with which, as children, we build tooth enamel. A process that, unfortunately, as adults we can no longer reactivate on our own.
How it works
The study, published on Nature Communicationscomes from the University of Nottingham. Scientists have created a protein gel that applies like regular fluoride varnish, but without fluoride: in its place is a protein designed to behave like those that guide the development of enamel in the first years of life.
Once spread on the tooth, the gel forms a thin film that infiltrates into micro-cracks and weakened points. And here comes the most interesting part: it captures calcium and phosphates already present in saliva and uses them to build new enamel, organized exactly like the natural one. Therefore: it does not “cover”, it does not polish, it does not mask. It really regenerates.
Tests have shown that the new layer resists brushing, acids and chewing: in short, it behaves like healthy enamel. And it can also be applied to exposed dentin, reducing sensitivity and improving the adhesion of reconstructions.
Why this discovery is important
Enamel loss is involved in approximately 50% of dental disorders worldwide. And it’s not just about cavities or temporary discomfort: we’re talking about an impact that can also have an impact on general health, because bacteria from the oral cavity can reach other parts of the body, including the cardiovascular system.
Until now, prevention was the only real tool. Remineralizing pastes and fluoride treatments help, of course, but they do not rebuild lost enamel. This gel could change the way we take care of our teeth: it does not replace good hygiene, but intervenes where our body can no longer do so.
And it fits into a research field that is already making enormous strides. In Japan, for example, some studies have shown the possibility of stimulating the growth of new teeth in adulthood in mice. We are not there yet, but the direction seems clear: more regeneration, less invasive interventions.
The hope is that, one day, we will be able to count on technologies capable not only of repairing, but of truly rebuilding.
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