by Dream Works, 11 Mar | 2016

Secret Behind Strength Of Our Teeth Revealed – Dentin Nanostructures Makes Them Crack Resistant

German researchers contemplating the structure of dentine – the layer underneath our well known enamel – have found nano structures that prevent the breakage of teeth. A group of researchers drove by Charite Julius-Wolff-Institute Berlin discovered mineral particles found in dentine are pre-packed so that stress from interior of the mouth stop teeth from cracking.

Unlike bones, human teeth cannot make their repair. Chief part of them is composed of dentine, which is a bone like material rooted in collagen protein fibers. These strands are retrieved in each tooth and sit in layers to make teeth damage resistant while remaining tough for the longest time period.

To see more, specialists led stress experiments and analyzed the mineral nano particles using advanced imaging technology. The experiments showed that when the small collagen fibers shrink, the appended mineral particles turn out to be more and more compressed.

They additionally found that dentine could be destabilized if the mineral-protein bonds are damaged through heating, which brings the thought that the balance of stresses between the protein and particles is vital for the continued existence of our teeth. This is the only reason why the artificial teeth don’t have that level of strength.

Dr. Zaslansky expect that the study will bring about harder and long lived ceramic structures, which could be used in the creation of artificial teeth.