A recent study in Advanced Healthcare Materials reports a novel method for regenerating tooth enamel using water-based films made from keratin, a protein abundant in sources like wool. Researchers found that these keratin films can self-assemble into organized scaffolds that guide the growth of aligned apatite nanocrystals, mimicking natural enamel formation. When applied to artificially created early enamel lesions (white spot lesions), the keratin-based system was able to repair the damage, restoring both the tooth’s optical appearance and its mechanical properties. Notably, the mechanical recovery was significant; nanoindentation tests showed the elastic modulus of damaged enamel increased from ~5 GPa back to ~53 GPa, and hardness recovered from ~0.1 GPa to over 1.0 GPa after treatment. These findings present a promising, simple, and potentially low-cost strategy for the clinical treatment of early dental caries.
Disclaimers:

• This information is for educational purposes only and should not be interpreted as medical or dental advice.
• The study discussed was conducted in vitro (on extracted human teeth in a laboratory setting). Further research and human clinical trials are necessary to confirm these findings and evaluate safety and efficacy.
• Always consult with a qualified dental professional before making any changes to your oral healthcare routine or treatment plan.
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#Keratin #EnamelRegeneration #Biomineralization #DentalResearch #RegenerativeDentistry

S. Gamea, E. Radvar, D. Athanasiadou, et al. “ Biomimetic Mineralization of Keratin Scaffolds for Enamel Regeneration.” Adv. Healthcare Mater. (2025): e02465. https://doi.org/10.1002/adhm.202502465

Keratin, enamel regeneration, biomimetic mineralization, apatite nanocrystals, hard tissue regeneration, dental caries, white spot lesion repair, protein scaffolds, self-assembly, spherulites, mechanical properties of enamel, nanoindentation, Knoop microhardness, tooth decay treatment, regenerative dentistry, biomaterials, apatite nucleation, hierarchical structure, dental tissue engineering, keratin films, in vitro study, restorative dentistry, dental biomimetics, biomineralization scaffolds, tooth repair