Unfortunately, there are no products that can “rebuild” dental enamel in the traditional sense. Our teeth do not have biological mechanisms that will allow them to create more enamel or to integrate new enamel. Any product that advertises otherwise will not be able to live up to its claims.
The enamel in our teeth is essentially a crystal made from calcium, phosphate and other minerals. When we consume acidic foods and drinks, the low pH causes the crystal to demineralize and become softer. This process can be further intensified by the cavity causing bacteria in our mouth. With time, this demineralization and constant acid exposure leads to permanent loss of enamel structure.
What Sensodyne Pronamel can do is remineralize the softened enamel. It contains a therapeutic dose of fluoride, which is extremely beneficial in restoring mineral content, slowing decay and protecting against future acid exposures. It is important to note that any mainstream toothpaste will have therapeutic levels of fluoride and will provide similar results. The most important factor is that you are using a fluoride toothpaste twice a day for two minutes, along with daily flossing.